Update mbedtls dependency to 2.28.8

This commit is contained in:
James Buren
2024-08-05 00:57:56 -05:00
parent bdad1df3d7
commit b398dcdcf9
1778 changed files with 281288 additions and 193399 deletions

View File

@@ -240,7 +240,7 @@ win32:INCLUDEPATH +=
dependencies/hidapi/hidapi \
dependencies/winring0/include \
dependencies/libusb-1.0.27/include \
dependencies/mbedtls-2.24.0/include \
dependencies/mbedtls-2.28.8/include \
dependencies/NVFC \
wmi/ \
@@ -248,90 +248,102 @@ win32:SOURCES -= $$CONTROLLER_CPP_LNX
win32:SOURCES += \
dependencies/hueplusplus-1.0.0/src/WinHttpHandler.cpp \
dependencies/mbedtls-2.24.0/library/aes.c \
dependencies/mbedtls-2.24.0/library/aesni.c \
dependencies/mbedtls-2.24.0/library/arc4.c \
dependencies/mbedtls-2.24.0/library/aria.c \
dependencies/mbedtls-2.24.0/library/asn1parse.c \
dependencies/mbedtls-2.24.0/library/asn1write.c \
dependencies/mbedtls-2.24.0/library/base64.c \
dependencies/mbedtls-2.24.0/library/bignum.c \
dependencies/mbedtls-2.24.0/library/blowfish.c \
dependencies/mbedtls-2.24.0/library/camellia.c \
dependencies/mbedtls-2.24.0/library/ccm.c \
dependencies/mbedtls-2.24.0/library/certs.c \
dependencies/mbedtls-2.24.0/library/chacha20.c \
dependencies/mbedtls-2.24.0/library/chachapoly.c \
dependencies/mbedtls-2.24.0/library/cipher.c \
dependencies/mbedtls-2.24.0/library/cipher_wrap.c \
dependencies/mbedtls-2.24.0/library/cmac.c \
dependencies/mbedtls-2.24.0/library/ctr_drbg.c \
dependencies/mbedtls-2.24.0/library/debug.c \
dependencies/mbedtls-2.24.0/library/des.c \
dependencies/mbedtls-2.24.0/library/dhm.c \
dependencies/mbedtls-2.24.0/library/ecdh.c \
dependencies/mbedtls-2.24.0/library/ecdsa.c \
dependencies/mbedtls-2.24.0/library/ecjpake.c \
dependencies/mbedtls-2.24.0/library/ecp.c \
dependencies/mbedtls-2.24.0/library/ecp_curves.c \
dependencies/mbedtls-2.24.0/library/entropy.c \
dependencies/mbedtls-2.24.0/library/entropy_poll.c \
dependencies/mbedtls-2.24.0/library/error.c \
dependencies/mbedtls-2.24.0/library/gcm.c \
dependencies/mbedtls-2.24.0/library/havege.c \
dependencies/mbedtls-2.24.0/library/hkdf.c \
dependencies/mbedtls-2.24.0/library/hmac_drbg.c \
dependencies/mbedtls-2.24.0/library/md.c \
dependencies/mbedtls-2.24.0/library/md2.c \
dependencies/mbedtls-2.24.0/library/md4.c \
dependencies/mbedtls-2.24.0/library/md5.c \
dependencies/mbedtls-2.24.0/library/memory_buffer_alloc.c \
dependencies/mbedtls-2.24.0/library/net_sockets.c \
dependencies/mbedtls-2.24.0/library/nist_kw.c \
dependencies/mbedtls-2.24.0/library/oid.c \
dependencies/mbedtls-2.24.0/library/padlock.c \
dependencies/mbedtls-2.24.0/library/pem.c \
dependencies/mbedtls-2.24.0/library/pk.c \
dependencies/mbedtls-2.24.0/library/pk_wrap.c \
dependencies/mbedtls-2.24.0/library/pkcs5.c \
dependencies/mbedtls-2.24.0/library/pkcs11.c \
dependencies/mbedtls-2.24.0/library/pkcs12.c \
dependencies/mbedtls-2.24.0/library/pkparse.c \
dependencies/mbedtls-2.24.0/library/pkwrite.c \
dependencies/mbedtls-2.24.0/library/platform.c \
dependencies/mbedtls-2.24.0/library/platform_util.c \
dependencies/mbedtls-2.24.0/library/poly1305.c \
dependencies/mbedtls-2.24.0/library/psa_crypto.c \
dependencies/mbedtls-2.24.0/library/psa_crypto_se.c \
dependencies/mbedtls-2.24.0/library/psa_crypto_slot_management.c \
dependencies/mbedtls-2.24.0/library/psa_crypto_storage.c \
dependencies/mbedtls-2.24.0/library/psa_its_file.c \
dependencies/mbedtls-2.24.0/library/ripemd160.c \
dependencies/mbedtls-2.24.0/library/rsa.c \
dependencies/mbedtls-2.24.0/library/rsa_internal.c \
dependencies/mbedtls-2.24.0/library/sha1.c \
dependencies/mbedtls-2.24.0/library/sha256.c \
dependencies/mbedtls-2.24.0/library/sha512.c \
dependencies/mbedtls-2.24.0/library/ssl_cache.c \
dependencies/mbedtls-2.24.0/library/ssl_ciphersuites.c \
dependencies/mbedtls-2.24.0/library/ssl_cli.c \
dependencies/mbedtls-2.24.0/library/ssl_cookie.c \
dependencies/mbedtls-2.24.0/library/ssl_msg.c \
dependencies/mbedtls-2.24.0/library/ssl_srv.c \
dependencies/mbedtls-2.24.0/library/ssl_ticket.c \
dependencies/mbedtls-2.24.0/library/ssl_tls.c \
dependencies/mbedtls-2.24.0/library/threading.c \
dependencies/mbedtls-2.24.0/library/timing.c \
dependencies/mbedtls-2.24.0/library/version.c \
dependencies/mbedtls-2.24.0/library/version_features.c \
dependencies/mbedtls-2.24.0/library/x509.c \
dependencies/mbedtls-2.24.0/library/x509_create.c \
dependencies/mbedtls-2.24.0/library/x509_crl.c \
dependencies/mbedtls-2.24.0/library/x509_crt.c \
dependencies/mbedtls-2.24.0/library/x509_csr.c \
dependencies/mbedtls-2.24.0/library/x509write_crt.c \
dependencies/mbedtls-2.24.0/library/x509write_csr.c \
dependencies/mbedtls-2.24.0/library/xtea.c \
dependencies/mbedtls-2.28.8/library/aes.c \
dependencies/mbedtls-2.28.8/library/aesni.c \
dependencies/mbedtls-2.28.8/library/arc4.c \
dependencies/mbedtls-2.28.8/library/aria.c \
dependencies/mbedtls-2.28.8/library/asn1parse.c \
dependencies/mbedtls-2.28.8/library/asn1write.c \
dependencies/mbedtls-2.28.8/library/base64.c \
dependencies/mbedtls-2.28.8/library/bignum.c \
dependencies/mbedtls-2.28.8/library/blowfish.c \
dependencies/mbedtls-2.28.8/library/camellia.c \
dependencies/mbedtls-2.28.8/library/ccm.c \
dependencies/mbedtls-2.28.8/library/certs.c \
dependencies/mbedtls-2.28.8/library/chacha20.c \
dependencies/mbedtls-2.28.8/library/chachapoly.c \
dependencies/mbedtls-2.28.8/library/cipher.c \
dependencies/mbedtls-2.28.8/library/cipher_wrap.c \
dependencies/mbedtls-2.28.8/library/cmac.c \
dependencies/mbedtls-2.28.8/library/constant_time.c \
dependencies/mbedtls-2.28.8/library/ctr_drbg.c \
dependencies/mbedtls-2.28.8/library/debug.c \
dependencies/mbedtls-2.28.8/library/des.c \
dependencies/mbedtls-2.28.8/library/dhm.c \
dependencies/mbedtls-2.28.8/library/ecdh.c \
dependencies/mbedtls-2.28.8/library/ecdsa.c \
dependencies/mbedtls-2.28.8/library/ecjpake.c \
dependencies/mbedtls-2.28.8/library/ecp.c \
dependencies/mbedtls-2.28.8/library/ecp_curves.c \
dependencies/mbedtls-2.28.8/library/entropy.c \
dependencies/mbedtls-2.28.8/library/entropy_poll.c \
dependencies/mbedtls-2.28.8/library/error.c \
dependencies/mbedtls-2.28.8/library/gcm.c \
dependencies/mbedtls-2.28.8/library/havege.c \
dependencies/mbedtls-2.28.8/library/hkdf.c \
dependencies/mbedtls-2.28.8/library/hmac_drbg.c \
dependencies/mbedtls-2.28.8/library/md2.c \
dependencies/mbedtls-2.28.8/library/md4.c \
dependencies/mbedtls-2.28.8/library/md5.c \
dependencies/mbedtls-2.28.8/library/md.c \
dependencies/mbedtls-2.28.8/library/memory_buffer_alloc.c \
dependencies/mbedtls-2.28.8/library/mps_reader.c \
dependencies/mbedtls-2.28.8/library/mps_trace.c \
dependencies/mbedtls-2.28.8/library/net_sockets.c \
dependencies/mbedtls-2.28.8/library/nist_kw.c \
dependencies/mbedtls-2.28.8/library/oid.c \
dependencies/mbedtls-2.28.8/library/padlock.c \
dependencies/mbedtls-2.28.8/library/pem.c \
dependencies/mbedtls-2.28.8/library/pk.c \
dependencies/mbedtls-2.28.8/library/pkcs11.c \
dependencies/mbedtls-2.28.8/library/pkcs12.c \
dependencies/mbedtls-2.28.8/library/pkcs5.c \
dependencies/mbedtls-2.28.8/library/pkparse.c \
dependencies/mbedtls-2.28.8/library/pk_wrap.c \
dependencies/mbedtls-2.28.8/library/pkwrite.c \
dependencies/mbedtls-2.28.8/library/platform.c \
dependencies/mbedtls-2.28.8/library/platform_util.c \
dependencies/mbedtls-2.28.8/library/poly1305.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_aead.c \
dependencies/mbedtls-2.28.8/library/psa_crypto.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_cipher.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_client.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_driver_wrappers.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_ecp.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_hash.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_mac.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_rsa.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_se.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_slot_management.c \
dependencies/mbedtls-2.28.8/library/psa_crypto_storage.c \
dependencies/mbedtls-2.28.8/library/psa_its_file.c \
dependencies/mbedtls-2.28.8/library/ripemd160.c \
dependencies/mbedtls-2.28.8/library/rsa.c \
dependencies/mbedtls-2.28.8/library/rsa_internal.c \
dependencies/mbedtls-2.28.8/library/sha1.c \
dependencies/mbedtls-2.28.8/library/sha256.c \
dependencies/mbedtls-2.28.8/library/sha512.c \
dependencies/mbedtls-2.28.8/library/ssl_cache.c \
dependencies/mbedtls-2.28.8/library/ssl_ciphersuites.c \
dependencies/mbedtls-2.28.8/library/ssl_cli.c \
dependencies/mbedtls-2.28.8/library/ssl_cookie.c \
dependencies/mbedtls-2.28.8/library/ssl_msg.c \
dependencies/mbedtls-2.28.8/library/ssl_srv.c \
dependencies/mbedtls-2.28.8/library/ssl_ticket.c \
dependencies/mbedtls-2.28.8/library/ssl_tls13_keys.c \
dependencies/mbedtls-2.28.8/library/ssl_tls.c \
dependencies/mbedtls-2.28.8/library/threading.c \
dependencies/mbedtls-2.28.8/library/timing.c \
dependencies/mbedtls-2.28.8/library/version.c \
dependencies/mbedtls-2.28.8/library/version_features.c \
dependencies/mbedtls-2.28.8/library/x509.c \
dependencies/mbedtls-2.28.8/library/x509_create.c \
dependencies/mbedtls-2.28.8/library/x509_crl.c \
dependencies/mbedtls-2.28.8/library/x509_crt.c \
dependencies/mbedtls-2.28.8/library/x509_csr.c \
dependencies/mbedtls-2.28.8/library/x509write_crt.c \
dependencies/mbedtls-2.28.8/library/x509write_csr.c \
dependencies/mbedtls-2.28.8/library/xtea.c \
dependencies/NVFC/nvapi.cpp \
i2c_smbus/i2c_smbus_amdadl.cpp \
i2c_smbus/i2c_smbus_i801.cpp \

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@@ -1,36 +0,0 @@
Notes:
* Pull requests cannot be accepted until the PR follows the [contributing guidelines](../CONTRIBUTING.md). In particular, each commit must have at least one `Signed-off-by:` line from the committer to certify that the contribution is made under the terms of the [Developer Certificate of Origin](../dco.txt).
* This is just a template, so feel free to use/remove the unnecessary things
## Description
A few sentences describing the overall goals of the pull request's commits.
## Status
**READY/IN DEVELOPMENT/HOLD**
## Requires Backporting
When there is a bug fix, it should be backported to all maintained and supported branches.
Changes do not have to be backported if:
- This PR is a new feature\enhancement
- This PR contains changes in the API. If this is true, and there is a need for the fix to be backported, the fix should be handled differently in the legacy branch
Yes | NO
Which branch?
## Migrations
If there is any API change, what's the incentive and logic for it.
YES | NO
## Additional comments
Any additional information that could be of interest
## Todos
- [ ] Tests
- [ ] Documentation
- [ ] Changelog updated
- [ ] Backported
## Steps to test or reproduce
Outline the steps to test or reproduce the PR here.

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@@ -1,73 +0,0 @@
language: c
compiler: gcc
sudo: false
cache: ccache
jobs:
include:
- name: basic checks and reference configurations
addons:
apt:
packages:
- gnutls-bin
- doxygen
- graphviz
- gcc-arm-none-eabi
- libnewlib-arm-none-eabi
language: python # Needed to get pip for Python 3
python: 3.5 # version from Ubuntu 16.04
install:
- pip install pylint==2.4.4
script:
- tests/scripts/all.sh -k 'check_*'
- tests/scripts/all.sh -k test_default_out_of_box
- tests/scripts/test-ref-configs.pl
- tests/scripts/all.sh -k build_arm_none_eabi_gcc_arm5vte build_arm_none_eabi_gcc_m0plus
- name: full configuration
script:
- tests/scripts/all.sh -k test_full_cmake_gcc_asan
- name: check compilation guards
script:
- tests/scripts/all.sh -k 'test_depends_*' 'build_key_exchanges'
- name: macOS
os: osx
compiler: clang
script:
- tests/scripts/all.sh -k test_default_out_of_box
- name: Windows
os: windows
before_install:
- choco install python --version=3.5.4
env:
# Add the directory where the Choco package goes
- PATH=/c/Python35:/c/Python35/Scripts:$PATH
script:
- type python; python --version
- python scripts/generate_psa_constants.py
# Logs appear out of sequence on Windows. Give time to catch up.
- sleep 5
- scripts/windows_msbuild.bat v141 # Visual Studio 2017
after_failure:
- tests/scripts/travis-log-failure.sh
env:
global:
- SEED=1
- secure: "FrI5d2s+ckckC17T66c8jm2jV6i2DkBPU5nyWzwbedjmEBeocREfQLd/x8yKpPzLDz7ghOvr+/GQvsPPn0dVkGlNzm3Q+hGHc/ujnASuUtGrcuMM+0ALnJ3k4rFr9xEvjJeWb4SmhJO5UCAZYvTItW4k7+bj9L+R6lt3TzQbXzg="
addons:
apt:
packages:
- gnutls-bin
coverity_scan:
project:
name: "ARMmbed/mbedtls"
notification_email: support-mbedtls@arm.com
build_command_prepend:
build_command: make
branch_pattern: coverity_scan

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@@ -1,2 +0,0 @@
THIRDPARTY_DIR = $(dir $(lastword $(MAKEFILE_LIST)))
include $(THIRDPARTY_DIR)/everest/Makefile.inc

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@@ -1,6 +0,0 @@
THIRDPARTY_INCLUDES+=-I../3rdparty/everest/include -I../3rdparty/everest/include/everest -I../3rdparty/everest/include/everest/kremlib
THIRDPARTY_CRYPTO_OBJECTS+= \
../3rdparty/everest/library/everest.o \
../3rdparty/everest/library/x25519.o \
../3rdparty/everest/library/Hacl_Curve25519_joined.o

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@@ -1,202 +0,0 @@
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*.html
*.pdf
!PSACryptoDriverModelSpec.pdf

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@@ -1,894 +0,0 @@
## Getting started with Mbed Crypto
### What is Mbed Crypto?
Mbed Crypto is an open source cryptographic library that supports a wide range of cryptographic operations, including:
* Key management
* Hashing
* Symmetric cryptography
* Asymmetric cryptography
* Message authentication (MAC)
* Key generation and derivation
* Authenticated encryption with associated data (AEAD)
The Mbed Crypto library is a reference implementation of the cryptography interface of the Arm Platform Security Architecture (PSA). It is written in portable C.
The Mbed Crypto library is distributed under the Apache License, version 2.0.
#### Platform Security Architecture (PSA)
Arm's Platform Security Architecture (PSA) is a holistic set of threat models,
security analyses, hardware and firmware architecture specifications, and an open source firmware reference implementation. PSA provides a recipe, based on industry best practice, that enables you to design security into both hardware and firmware consistently. Part of the API provided by PSA is the cryptography interface, which provides access to a set of primitives.
### Using Mbed Crypto
* [Getting the Mbed Crypto library](#getting-the-mbed-crypto-library)
* [Building the Mbed Crypto library](#building-the-mbed-crypto-library)
* [Using the Mbed Crypto library](#using-the-mbed-crypto-library)
* [Importing a key](#importing-a-key)
* [Signing a message using RSA](#signing-a-message-using-RSA)
* [Encrypting or decrypting using symmetric ciphers](#encrypting-or-decrypting-using-symmetric-ciphers)
* [Hashing a message](#hashing-a-message)
* [Deriving a new key from an existing key](#deriving-a-new-key-from-an-existing-key)
* [Generating a random value](#generating-a-random-value)
* [Authenticating and encrypting or decrypting a message](#authenticating-and-encrypting-or-decrypting-a-message)
* [Generating and exporting keys](#generating-and-exporting-keys)
* [More about the Mbed Crypto library](#more-about-the-mbed-crypto-library)
### Getting the Mbed Crypto library
Mbed Crypto releases are available in the [public GitHub repository](https://github.com/ARMmbed/mbed-crypto).
### Building the Mbed Crypto library
**Prerequisites to building the library with the provided makefiles:**
* GNU Make.
* A C toolchain (compiler, linker, archiver).
* Python 2 or Python 3 (either works) to generate the test code.
* Perl to run the tests.
If you have a C compiler such as GCC or Clang, just run `make` in the top-level directory to build the library, a set of unit tests and some sample programs.
To select a different compiler, set the `CC` variable to the name or path of the compiler and linker (default: `cc`) and set `AR` to a compatible archiver (default: `ar`); for example:
```
make CC=arm-linux-gnueabi-gcc AR=arm-linux-gnueabi-ar
```
The provided makefiles pass options to the compiler that assume a GCC-like command line syntax. To use a different compiler, you may need to pass different values for `CFLAGS`, `WARNINGS_CFLAGS` and `LDFLAGS`.
To run the unit tests on the host machine, run `make test` from the top-level directory. If you are cross-compiling, copy the test executable from the `tests` directory to the target machine.
### Using the Mbed Crypto library
To use the Mbed Crypto APIs, call `psa_crypto_init()` before calling any other API. This initializes the library.
### Importing a key
To use a key for cryptography operations in Mbed Crypto, you need to first
import it. Importing the key creates a handle that refers to the key for use
with other function calls.
**Prerequisites to importing keys:**
* Initialize the library with a successful call to `psa_crypto_init()`.
This example shows how to import a key:
```C
void import_a_key(const uint8_t *key, size_t key_len)
{
psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_handle_t handle;
printf("Import an AES key...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Set key attributes */
psa_set_key_usage_flags(&attributes, 0);
psa_set_key_algorithm(&attributes, 0);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, 128);
/* Import the key */
status = psa_import_key(&attributes, key, key_len, &handle);
if (status != PSA_SUCCESS) {
printf("Failed to import key\n");
return;
}
printf("Imported a key\n");
/* Free the attributes */
psa_reset_key_attributes(&attributes);
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
}
```
### Signing a message using RSA
Mbed Crypto supports encrypting, decrypting, signing and verifying messages using public key signature algorithms, such as RSA or ECDSA.
**Prerequisites to performing asymmetric signature operations:**
* Initialize the library with a successful call to `psa_crypto_init()`.
* Have a valid key with appropriate attributes set:
* Usage flag `PSA_KEY_USAGE_SIGN_HASH` to allow signing.
* Usage flag `PSA_KEY_USAGE_VERIFY_HASH` to allow signature verification.
* Algorithm set to the desired signature algorithm.
This example shows how to sign a hash that has already been calculated:
```C
void sign_a_message_using_rsa(const uint8_t *key, size_t key_len)
{
psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
uint8_t hash[32] = {0x50, 0xd8, 0x58, 0xe0, 0x98, 0x5e, 0xcc, 0x7f,
0x60, 0x41, 0x8a, 0xaf, 0x0c, 0xc5, 0xab, 0x58,
0x7f, 0x42, 0xc2, 0x57, 0x0a, 0x88, 0x40, 0x95,
0xa9, 0xe8, 0xcc, 0xac, 0xd0, 0xf6, 0x54, 0x5c};
uint8_t signature[PSA_SIGNATURE_MAX_SIZE] = {0};
size_t signature_length;
psa_key_handle_t handle;
printf("Sign a message...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Set key attributes */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_HASH);
psa_set_key_algorithm(&attributes, PSA_ALG_RSA_PKCS1V15_SIGN_RAW);
psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_KEY_PAIR);
psa_set_key_bits(&attributes, 1024);
/* Import the key */
status = psa_import_key(&attributes, key, key_len, &handle);
if (status != PSA_SUCCESS) {
printf("Failed to import key\n");
return;
}
/* Sign message using the key */
status = psa_sign_hash(handle, PSA_ALG_RSA_PKCS1V15_SIGN_RAW,
hash, sizeof(hash),
signature, sizeof(signature),
&signature_length);
if (status != PSA_SUCCESS) {
printf("Failed to sign\n");
return;
}
printf("Signed a message\n");
/* Free the attributes */
psa_reset_key_attributes(&attributes);
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
}
```
### Using symmetric ciphers
Mbed Crypto supports encrypting and decrypting messages using various symmetric cipher algorithms (both block and stream ciphers).
**Prerequisites to working with the symmetric cipher API:**
* Initialize the library with a successful call to `psa_crypto_init()`.
* Have a handle to a symmetric key. This key's usage flags must include `PSA_KEY_USAGE_ENCRYPT` to allow encryption or `PSA_KEY_USAGE_DECRYPT` to allow decryption.
**To encrypt a message with a symmetric cipher:**
1. Allocate an operation (`psa_cipher_operation_t`) structure to pass to the cipher functions.
1. Initialize the operation structure to zero or to `PSA_CIPHER_OPERATION_INIT`.
1. Call `psa_cipher_encrypt_setup()` to specify the algorithm and the key to be used.
1. Call either `psa_cipher_generate_iv()` or `psa_cipher_set_iv()` to generate or set the initialization vector (IV). We recommend calling `psa_cipher_generate_iv()`, unless you require a specific IV value.
1. Call `psa_cipher_update()` with the message to encrypt. You may call this function multiple times, passing successive fragments of the message on successive calls.
1. Call `psa_cipher_finish()` to end the operation and output the encrypted message.
This example shows how to encrypt data using an AES (Advanced Encryption Standard) key in CBC (Cipher Block Chaining) mode with no padding (assuming all prerequisites have been fulfilled):
```c
void encrypt_with_symmetric_ciphers(const uint8_t *key, size_t key_len)
{
enum {
block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE(PSA_KEY_TYPE_AES),
};
psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_algorithm_t alg = PSA_ALG_CBC_NO_PADDING;
uint8_t plaintext[block_size] = SOME_PLAINTEXT;
uint8_t iv[block_size];
size_t iv_len;
uint8_t output[block_size];
size_t output_len;
psa_key_handle_t handle;
psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
printf("Encrypt with cipher...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS)
{
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Import a key */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_ENCRYPT);
psa_set_key_algorithm(&attributes, alg);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, 128);
status = psa_import_key(&attributes, key, key_len, &handle);
if (status != PSA_SUCCESS) {
printf("Failed to import a key\n");
return;
}
psa_reset_key_attributes(&attributes);
/* Encrypt the plaintext */
status = psa_cipher_encrypt_setup(&operation, handle, alg);
if (status != PSA_SUCCESS) {
printf("Failed to begin cipher operation\n");
return;
}
status = psa_cipher_generate_iv(&operation, iv, sizeof(iv), &iv_len);
if (status != PSA_SUCCESS) {
printf("Failed to generate IV\n");
return;
}
status = psa_cipher_update(&operation, plaintext, sizeof(plaintext),
output, sizeof(output), &output_len);
if (status != PSA_SUCCESS) {
printf("Failed to update cipher operation\n");
return;
}
status = psa_cipher_finish(&operation, output + output_len,
sizeof(output) - output_len, &output_len);
if (status != PSA_SUCCESS) {
printf("Failed to finish cipher operation\n");
return;
}
printf("Encrypted plaintext\n");
/* Clean up cipher operation context */
psa_cipher_abort(&operation);
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
}
```
**To decrypt a message with a symmetric cipher:**
1. Allocate an operation (`psa_cipher_operation_t`) structure to pass to the cipher functions.
1. Initialize the operation structure to zero or to `PSA_CIPHER_OPERATION_INIT`.
1. Call `psa_cipher_decrypt_setup()` to specify the algorithm and the key to be used.
1. Call `psa_cipher_set_iv()` with the IV for the decryption.
1. Call `psa_cipher_update()` with the message to encrypt. You may call this function multiple times, passing successive fragments of the message on successive calls.
1. Call `psa_cipher_finish()` to end the operation and output the decrypted message.
This example shows how to decrypt encrypted data using an AES key in CBC mode with no padding
(assuming all prerequisites have been fulfilled):
```c
void decrypt_with_symmetric_ciphers(const uint8_t *key, size_t key_len)
{
enum {
block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE(PSA_KEY_TYPE_AES),
};
psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_algorithm_t alg = PSA_ALG_CBC_NO_PADDING;
psa_cipher_operation_t operation = PSA_CIPHER_OPERATION_INIT;
uint8_t ciphertext[block_size] = SOME_CIPHERTEXT;
uint8_t iv[block_size] = ENCRYPTED_WITH_IV;
uint8_t output[block_size];
size_t output_len;
psa_key_handle_t handle;
printf("Decrypt with cipher...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS)
{
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Import a key */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DECRYPT);
psa_set_key_algorithm(&attributes, alg);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, 128);
status = psa_import_key(&attributes, key, key_len, &handle);
if (status != PSA_SUCCESS) {
printf("Failed to import a key\n");
return;
}
psa_reset_key_attributes(&attributes);
/* Decrypt the ciphertext */
status = psa_cipher_decrypt_setup(&operation, handle, alg);
if (status != PSA_SUCCESS) {
printf("Failed to begin cipher operation\n");
return;
}
status = psa_cipher_set_iv(&operation, iv, sizeof(iv));
if (status != PSA_SUCCESS) {
printf("Failed to set IV\n");
return;
}
status = psa_cipher_update(&operation, ciphertext, sizeof(ciphertext),
output, sizeof(output), &output_len);
if (status != PSA_SUCCESS) {
printf("Failed to update cipher operation\n");
return;
}
status = psa_cipher_finish(&operation, output + output_len,
sizeof(output) - output_len, &output_len);
if (status != PSA_SUCCESS) {
printf("Failed to finish cipher operation\n");
return;
}
printf("Decrypted ciphertext\n");
/* Clean up cipher operation context */
psa_cipher_abort(&operation);
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
}
```
#### Handling cipher operation contexts
After you've initialized the operation structure with a successful call to `psa_cipher_encrypt_setup()` or `psa_cipher_decrypt_setup()`, you can terminate the operation at any time by calling `psa_cipher_abort()`.
The call to `psa_cipher_abort()` frees any resources associated with the operation, except for the operation structure itself.
Mbed Crypto implicitly calls `psa_cipher_abort()` when:
* A call to `psa_cipher_generate_iv()`, `psa_cipher_set_iv()` or `psa_cipher_update()` fails (returning any status other than `PSA_SUCCESS`).
* A call to `psa_cipher_finish()` succeeds or fails.
After an implicit or explicit call to `psa_cipher_abort()`, the operation structure is invalidated; in other words, you cannot reuse the operation structure for the same operation. You can, however, reuse the operation structure for a different operation by calling either `psa_cipher_encrypt_setup()` or `psa_cipher_decrypt_setup()` again.
You must call `psa_cipher_abort()` at some point for any operation that is initialized successfully (by a successful call to `psa_cipher_encrypt_setup()` or `psa_cipher_decrypt_setup()`).
Making multiple sequential calls to `psa_cipher_abort()` on an operation that is terminated (either implicitly or explicitly) is safe and has no effect.
### Hashing a message
Mbed Crypto lets you compute and verify hashes using various hashing
algorithms.
**Prerequisites to working with the hash APIs:**
* Initialize the library with a successful call to `psa_crypto_init()`.
**To calculate a hash:**
1. Allocate an operation structure (`psa_hash_operation_t`) to pass to the hash functions.
1. Initialize the operation structure to zero or to `PSA_HASH_OPERATION_INIT`.
1. Call `psa_hash_setup()` to specify the hash algorithm.
1. Call `psa_hash_update()` with the message to encrypt. You may call this function multiple times, passing successive fragments of the message on successive calls.
1. Call `psa_hash_finish()` to calculate the hash, or `psa_hash_verify()` to compare the computed hash with an expected hash value.
This example shows how to calculate the SHA-256 hash of a message:
```c
psa_status_t status;
psa_algorithm_t alg = PSA_ALG_SHA_256;
psa_hash_operation_t operation = PSA_HASH_OPERATION_INIT;
unsigned char input[] = { 'a', 'b', 'c' };
unsigned char actual_hash[PSA_HASH_MAX_SIZE];
size_t actual_hash_len;
printf("Hash a message...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Compute hash of message */
status = psa_hash_setup(&operation, alg);
if (status != PSA_SUCCESS) {
printf("Failed to begin hash operation\n");
return;
}
status = psa_hash_update(&operation, input, sizeof(input));
if (status != PSA_SUCCESS) {
printf("Failed to update hash operation\n");
return;
}
status = psa_hash_finish(&operation, actual_hash, sizeof(actual_hash),
&actual_hash_len);
if (status != PSA_SUCCESS) {
printf("Failed to finish hash operation\n");
return;
}
printf("Hashed a message\n");
/* Clean up hash operation context */
psa_hash_abort(&operation);
mbedtls_psa_crypto_free();
```
This example shows how to verify the SHA-256 hash of a message:
```c
psa_status_t status;
psa_algorithm_t alg = PSA_ALG_SHA_256;
psa_hash_operation_t operation = PSA_HASH_OPERATION_INIT;
unsigned char input[] = { 'a', 'b', 'c' };
unsigned char expected_hash[] = {
0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, 0x41, 0x41, 0x40, 0xde,
0x5d, 0xae, 0x22, 0x23, 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad
};
size_t expected_hash_len = PSA_HASH_SIZE(alg);
printf("Verify a hash...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Verify message hash */
status = psa_hash_setup(&operation, alg);
if (status != PSA_SUCCESS) {
printf("Failed to begin hash operation\n");
return;
}
status = psa_hash_update(&operation, input, sizeof(input));
if (status != PSA_SUCCESS) {
printf("Failed to update hash operation\n");
return;
}
status = psa_hash_verify(&operation, expected_hash, expected_hash_len);
if (status != PSA_SUCCESS) {
printf("Failed to verify hash\n");
return;
}
printf("Verified a hash\n");
/* Clean up hash operation context */
psa_hash_abort(&operation);
mbedtls_psa_crypto_free();
```
The API provides the macro `PSA_HASH_SIZE`, which returns the expected hash length (in bytes) for the specified algorithm.
#### Handling hash operation contexts
After a successful call to `psa_hash_setup()`, you can terminate the operation at any time by calling `psa_hash_abort()`. The call to `psa_hash_abort()` frees any resources associated with the operation, except for the operation structure itself.
Mbed Crypto implicitly calls `psa_hash_abort()` when:
1. A call to `psa_hash_update()` fails (returning any status other than `PSA_SUCCESS`).
1. A call to `psa_hash_finish()` succeeds or fails.
1. A call to `psa_hash_verify()` succeeds or fails.
After an implicit or explicit call to `psa_hash_abort()`, the operation structure is invalidated; in other words, you cannot reuse the operation structure for the same operation. You can, however, reuse the operation structure for a different operation by calling `psa_hash_setup()` again.
You must call `psa_hash_abort()` at some point for any operation that is initialized successfully (by a successful call to `psa_hash_setup()`) .
Making multiple sequential calls to `psa_hash_abort()` on an operation that has already been terminated (either implicitly or explicitly) is safe and has no effect.
### Generating a random value
Mbed Crypto can generate random data.
**Prerequisites to generating random data:**
* Initialize the library with a successful call to `psa_crypto_init()`.
<span class="notes">**Note:** To generate a random key, use `psa_generate_key()` instead of `psa_generate_random()`.</span>
This example shows how to generate ten bytes of random data by calling `psa_generate_random()`:
```C
psa_status_t status;
uint8_t random[10] = { 0 };
printf("Generate random...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
status = psa_generate_random(random, sizeof(random));
if (status != PSA_SUCCESS) {
printf("Failed to generate a random value\n");
return;
}
printf("Generated random data\n");
/* Clean up */
mbedtls_psa_crypto_free();
```
### Deriving a new key from an existing key
Mbed Crypto provides a key derivation API that lets you derive new keys from
existing ones. The key derivation API has functions to take inputs, including
other keys and data, and functions to generate outputs, such as new keys or
other data.
You must first initialize and set up a key derivation context,
provided with a key and, optionally, other data. Then, use the key derivation context to either read derived data to a buffer or send derived data directly to a key slot.
See the documentation for the particular algorithm (such as HKDF or the TLS1.2 PRF) for
information about which inputs to pass when, and when you can obtain which outputs.
**Prerequisites to working with the key derivation APIs:**
* Initialize the library with a successful call to `psa_crypto_init()`.
* Use a key with the appropriate attributes set:
* Usage flags set for key derivation (`PSA_KEY_USAGE_DERIVE`)
* Key type set to `PSA_KEY_TYPE_DERIVE`.
* Algorithm set to a key derivation algorithm
(for example, `PSA_ALG_HKDF(PSA_ALG_SHA_256)`).
**To derive a new AES-CTR 128-bit encryption key into a given key slot using HKDF
with a given key, salt and info:**
1. Set up the key derivation context using the `psa_key_derivation_setup()`
function, specifying the derivation algorithm `PSA_ALG_HKDF(PSA_ALG_SHA_256)`.
1. Provide an optional salt with `psa_key_derivation_input_bytes()`.
1. Provide info with `psa_key_derivation_input_bytes()`.
1. Provide a secret with `psa_key_derivation_input_key()`, referencing a key that
can be used for key derivation.
1. Set the key attributes desired for the new derived key. We'll set
the `PSA_KEY_USAGE_ENCRYPT` usage flag and the `PSA_ALG_CTR` algorithm for this
example.
1. Derive the key by calling `psa_key_derivation_output_key()`.
1. Clean up the key derivation context.
At this point, the derived key slot holds a new 128-bit AES-CTR encryption key
derived from the key, salt and info provided:
```C
psa_status_t status;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
static const unsigned char key[] = {
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b };
static const unsigned char salt[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c };
static const unsigned char info[] = {
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6,
0xf7, 0xf8, 0xf9 };
psa_algorithm_t alg = PSA_ALG_HKDF(PSA_ALG_SHA_256);
psa_key_derivation_operation_t operation =
PSA_KEY_DERIVATION_OPERATION_INIT;
size_t derived_bits = 128;
size_t capacity = PSA_BITS_TO_BYTES(derived_bits);
psa_key_handle_t base_key;
psa_key_handle_t derived_key;
printf("Derive a key (HKDF)...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Import a key for use in key derivation. If such a key has already been
* generated or imported, you can skip this part. */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DERIVE);
psa_set_key_algorithm(&attributes, alg);
psa_set_key_type(&attributes, PSA_KEY_TYPE_DERIVE);
status = psa_import_key(&attributes, key, sizeof(key), &base_key);
if (status != PSA_SUCCESS) {
printf("Failed to import a key\n");
return;
}
psa_reset_key_attributes(&attributes);
/* Derive a key */
status = psa_key_derivation_setup(&operation, alg);
if (status != PSA_SUCCESS) {
printf("Failed to begin key derivation\n");
return;
}
status = psa_key_derivation_set_capacity(&operation, capacity);
if (status != PSA_SUCCESS) {
printf("Failed to set capacity\n");
return;
}
status = psa_key_derivation_input_bytes(&operation,
PSA_KEY_DERIVATION_INPUT_SALT,
salt, sizeof(salt));
if (status != PSA_SUCCESS) {
printf("Failed to input salt (extract)\n");
return;
}
status = psa_key_derivation_input_key(&operation,
PSA_KEY_DERIVATION_INPUT_SECRET,
base_key);
if (status != PSA_SUCCESS) {
printf("Failed to input key (extract)\n");
return;
}
status = psa_key_derivation_input_bytes(&operation,
PSA_KEY_DERIVATION_INPUT_INFO,
info, sizeof(info));
if (status != PSA_SUCCESS) {
printf("Failed to input info (expand)\n");
return;
}
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_ENCRYPT);
psa_set_key_algorithm(&attributes, PSA_ALG_CTR);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, 128);
status = psa_key_derivation_output_key(&attributes, &operation,
&derived_key);
if (status != PSA_SUCCESS) {
printf("Failed to derive key\n");
return;
}
psa_reset_key_attributes(&attributes);
printf("Derived key\n");
/* Clean up key derivation operation */
psa_key_derivation_abort(&operation);
/* Destroy the keys */
psa_destroy_key(derived_key);
psa_destroy_key(base_key);
mbedtls_psa_crypto_free();
```
### Authenticating and encrypting or decrypting a message
Mbed Crypto provides a simple way to authenticate and encrypt with associated data (AEAD), supporting the `PSA_ALG_CCM` algorithm.
**Prerequisites to working with the AEAD cipher APIs:**
* Initialize the library with a successful call to `psa_crypto_init()`.
* The key attributes for the key used for derivation must have the `PSA_KEY_USAGE_ENCRYPT` or `PSA_KEY_USAGE_DECRYPT` usage flags.
This example shows how to authenticate and encrypt a message:
```C
psa_status_t status;
static const uint8_t key[] = {
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF };
static const uint8_t nonce[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B };
static const uint8_t additional_data[] = {
0xEC, 0x46, 0xBB, 0x63, 0xB0, 0x25,
0x20, 0xC3, 0x3C, 0x49, 0xFD, 0x70 };
static const uint8_t input_data[] = {
0xB9, 0x6B, 0x49, 0xE2, 0x1D, 0x62, 0x17, 0x41,
0x63, 0x28, 0x75, 0xDB, 0x7F, 0x6C, 0x92, 0x43,
0xD2, 0xD7, 0xC2 };
uint8_t *output_data = NULL;
size_t output_size = 0;
size_t output_length = 0;
size_t tag_length = 16;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_handle_t handle;
printf("Authenticate encrypt...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
output_size = sizeof(input_data) + tag_length;
output_data = (uint8_t *)malloc(output_size);
if (!output_data) {
printf("Out of memory\n");
return;
}
/* Import a key */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_ENCRYPT);
psa_set_key_algorithm(&attributes, PSA_ALG_CCM);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, 128);
status = psa_import_key(&attributes, key, sizeof(key), &handle);
psa_reset_key_attributes(&attributes);
/* Authenticate and encrypt */
status = psa_aead_encrypt(handle, PSA_ALG_CCM,
nonce, sizeof(nonce),
additional_data, sizeof(additional_data),
input_data, sizeof(input_data),
output_data, output_size,
&output_length);
if (status != PSA_SUCCESS) {
printf("Failed to authenticate and encrypt\n");
return;
}
printf("Authenticated and encrypted\n");
/* Clean up */
free(output_data);
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
```
This example shows how to authenticate and decrypt a message:
```C
psa_status_t status;
static const uint8_t key[] = {
0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF };
static const uint8_t nonce[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B };
static const uint8_t additional_data[] = {
0xEC, 0x46, 0xBB, 0x63, 0xB0, 0x25,
0x20, 0xC3, 0x3C, 0x49, 0xFD, 0x70 };
static const uint8_t input_data[] = {
0x20, 0x30, 0xE0, 0x36, 0xED, 0x09, 0xA0, 0x45, 0xAF, 0x3C, 0xBA, 0xEE,
0x0F, 0xC8, 0x48, 0xAF, 0xCD, 0x89, 0x54, 0xF4, 0xF6, 0x3F, 0x28, 0x9A,
0xA1, 0xDD, 0xB2, 0xB8, 0x09, 0xCD, 0x7C, 0xE1, 0x46, 0xE9, 0x98 };
uint8_t *output_data = NULL;
size_t output_size = 0;
size_t output_length = 0;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_handle_t handle;
printf("Authenticate decrypt...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
output_size = sizeof(input_data);
output_data = (uint8_t *)malloc(output_size);
if (!output_data) {
printf("Out of memory\n");
return;
}
/* Import a key */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DECRYPT);
psa_set_key_algorithm(&attributes, PSA_ALG_CCM);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_bits(&attributes, 128);
status = psa_import_key(&attributes, key, sizeof(key), &handle);
if (status != PSA_SUCCESS) {
printf("Failed to import a key\n");
return;
}
psa_reset_key_attributes(&attributes);
/* Authenticate and decrypt */
status = psa_aead_decrypt(handle, PSA_ALG_CCM,
nonce, sizeof(nonce),
additional_data, sizeof(additional_data),
input_data, sizeof(input_data),
output_data, output_size,
&output_length);
if (status != PSA_SUCCESS) {
printf("Failed to authenticate and decrypt %ld\n", status);
return;
}
printf("Authenticated and decrypted\n");
/* Clean up */
free(output_data);
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
```
### Generating and exporting keys
Mbed Crypto provides a simple way to generate a key or key pair.
**Prerequisites to using key generation and export APIs:**
* Initialize the library with a successful call to `psa_crypto_init()`.
**To generate an ECDSA key:**
1. Set the desired key attributes for key generation by calling
`psa_set_key_algorithm()` with the chosen ECDSA algorithm (such as
`PSA_ALG_DETERMINISTIC_ECDSA(PSA_ALG_SHA_256)`). You only want to export the public key, not the key pair (or private key); therefore, do not set `PSA_KEY_USAGE_EXPORT`.
1. Generate a key by calling `psa_generate_key()`.
1. Export the generated public key by calling `psa_export_public_key()`:
```C
enum {
key_bits = 256,
};
psa_status_t status;
size_t exported_length = 0;
static uint8_t exported[PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits)];
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_handle_t handle;
printf("Generate a key pair...\t");
fflush(stdout);
/* Initialize PSA Crypto */
status = psa_crypto_init();
if (status != PSA_SUCCESS) {
printf("Failed to initialize PSA Crypto\n");
return;
}
/* Generate a key */
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_HASH);
psa_set_key_algorithm(&attributes,
PSA_ALG_DETERMINISTIC_ECDSA(PSA_ALG_SHA_256));
psa_set_key_type(&attributes,
PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1));
psa_set_key_bits(&attributes, key_bits);
status = psa_generate_key(&attributes, &handle);
if (status != PSA_SUCCESS) {
printf("Failed to generate key\n");
return;
}
psa_reset_key_attributes(&attributes);
status = psa_export_public_key(handle, exported, sizeof(exported),
&exported_length);
if (status != PSA_SUCCESS) {
printf("Failed to export public key %ld\n", status);
return;
}
printf("Exported a public key\n");
/* Destroy the key */
psa_destroy_key(handle);
mbedtls_psa_crypto_free();
```
### More about the PSA Crypto API
For more information about the PSA Crypto API, please see the [PSA Cryptography API Specification](https://armmbed.github.io/mbed-crypto/html/index.html).

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@@ -1,640 +0,0 @@
PSA Cryptoprocessor Driver Interface
====================================
This document describes an interface for cryptoprocessor drivers in the PSA cryptography API. This interface complements the [PSA Cryptography API specification](https://armmbed.github.io/mbed-crypto/psa/#application-programming-interface), which describes the interface between a PSA Cryptography implementation and an application.
This specification is work in progress and should be considered to be in a beta stage. There is ongoing work to implement this interface in Mbed TLS, which is the reference implementation of the PSA Cryptography API. At this stage, Arm does not expect major changes, but minor changes are expected based on experience from the first implementation and on external feedback.
Time-stamp: "2020/08/05 20:37:24 GMT"
## Introduction
### Purpose of the driver interface
The PSA Cryptography API defines an interface that allows applications to perform cryptographic operations in a uniform way regardless of how the operations are performed. Under the hood, different keys may be processed in different hardware or in different logical partitions, and different algorithms may involve different hardware or software components.
The driver interface allows implementations of the PSA Crypytography API to be built compositionally. An implementation of the PSA Cryptography API is composed of a **core** and zero or more **drivers**. The core handles key management, enforces key usage policies, and dispatches cryptographic operations either to the applicable driver or to built-in code.
Functions in the PSA Cryptography API invoke functions in the core. Code from the core calls drivers as described in the present document.
### Types of drivers
The PSA Cryptography driver interface supports two types of cryptoprocessors, and accordingly two types of drivers.
* **Transparent** drivers implement cryptographic operations on keys that are provided in cleartext at the beginning of each operation. They are typically used for hardware **accelerators**. When a transparent driver is available for a particular combination of parameters (cryptographic algorithm, key type and size, etc.), it is used instead of the default software implementation. Transparent drivers can also be pure software implementations that are distributed as plug-ins to a PSA Crypto implementation (for example, an alternative implementation with different performance characteristics, or a certified implementation).
* **Opaque** drivers implement cryptographic operations on keys that can only be used inside a protected environment such as a **secure element**, a hardware security module, a smartcard, a secure enclave, etc. An opaque driver is invoked for the specific [key location](#lifetimes-and-locations) that the driver is registered for: the dispatch is based on the key's lifetime.
### Requirements
The present specification was designed to fulfil the following high-level requirements.
[Req.plugins] It is possible to combine multiple drivers from different providers into the same implementation, without any prior arrangement other than choosing certain names and values from disjoint namespaces.
[Req.compile] It is possible to compile the code of each driver and of the core separately, and link them together. A small amount of glue code may need to be compiled once the list of drivers is available.
[Req.types] Support drivers for the following types of hardware: accelerators that operate on keys in cleartext; cryptoprocessors that can wrap keys with a built-in keys but not store user keys; and cryptoprocessors that store key material.
[Req.portable] The interface between drivers and the core does not involve any platform-specific consideration. Driver calls are simple C functions. Interactions between driver code and hardware happen inside the driver (and in fact a driver need not involve any hardware at all).
[Req.location] Applications can tell which location values correspond to which secure element drivers.
[Req.fallback] Accelerator drivers can specify that they do not fully support a cryptographic mechanism and that a fallback to core code may be necessary. Conversely, if an accelerator fully supports cryptographic mechanism, the core must be able to omit code for this mechanism.
[Req.mechanisms] Drivers can specify which mechanisms they support. A driver's code will not be invoked for cryptographic mechanisms that it does not support.
## Overview of drivers
### Deliverables for a driver
To write a driver, you need to implement some functions with C linkage, and to declare these functions in a **driver description file**. The driver description file declares which functions the driver implements and what cryptographic mechanisms they support. Depending on the driver type, you may also need to define some C types and macros in a header file.
The concrete syntax for a driver description file is JSON. The structure of this JSON file is specified in the section [“Driver description syntax”](#driver-description-syntax).
A driver therefore consists of:
* A driver description file (in JSON format).
* C header files defining the types required by the driver description. The names of these header files is declared in the driver description file.
* An object file compiled for the target platform defining the functions required by the driver description. Implementations may allow drivers to be provided as source files and compiled with the core instead of being pre-compiled.
How to provide the driver description file, the C header files and the object code is implementation-dependent.
Implementations should support multiple drivers.
### Driver description syntax
The concrete syntax for a driver description file is JSON.
#### Driver description top-level element
A driver description is a JSON object containing the following properties:
* `"prefix"` (mandatory, string). This must be a valid prefix for a C identifier. All the types and functions provided by the driver have a name that starts with this prefix unless overridden with a `"name"` element in the applicable capability as described below.
* `"type"` (mandatory, string). One of `"transparent"` or `"opaque"`.
* `"headers"` (optional, array of strings). A list of header files. These header files must define the types provided by the driver and may declare the functions provided by the driver. They may include other PSA headers and standard headers of the platform. Whether they may include other headers is implementation-specific. If omitted, the list of headers is empty.
* `"capabilities"` (mandatory, array of [capabilities](#driver-description-capability)).
A list of **capabilities**. Each capability describes a family of functions that the driver implements for a certain class of cryptographic mechanisms.
* `"key_context"` (not permitted for transparent drivers, mandatory for opaque drivers): information about the [representation of keys](#key-format-for-opaque-drivers).
* `"persistent_state_size"` (not permitted for transparent drivers, optional for opaque drivers, integer or string). The size in bytes of the [persistent state of the driver](#opaque-driver-persistent-state). This may be either a non-negative integer or a C constant expression of type `size_t`.
* `"location"` (not permitted for transparent drivers, optional for opaque drivers, integer or string). The [location value](#lifetimes-and-locations) for which this driver is invoked. In other words, this determines the lifetimes for which the driver is invoked. This may be either a non-negative integer or a C constant expression of type `psa_key_location_t`.
#### Driver description capability
A capability declares a family of functions that the driver implements for a certain class of cryptographic mechanisms. The capability specifies which key types and algorithms are covered and the names of the types and functions that implement it.
A capability is a JSON object containing the following properties:
* `"functions"` (optional, list of strings). Each element is the name of a [driver function](#driver-functions) or driver function family. If specified, the core will invoke this capability of the driver only when performing one of the specified operations. If omitted, the `"algorithms"` property is mandatory and the core will invoke this capability of the driver for all operations that are applicable to the specified algorithms. The driver must implement all the specified or implied functions, as well as the types if applicable.
* `"algorithms"` (optional, list of strings). Each element is an [algorithm specification](#algorithm-specifications). If specified, the core will invoke this capability of the driver only when performing one of the specified algorithms. If omitted, the core will invoke this capability for all applicable algorithms.
* `"key_types"` (optional, list of strings). Each element is a [key type specification](#key-type-specifications). If specified, the core will invoke this capability of the driver only for operations involving a key with one of the specified key types. If omitted, the core will invoke this capability of the driver for all applicable key types.
* `"key_sizes"` (optional, list of integers). If specified, the core will invoke this capability of the driver only for operations involving a key with one of the specified key sizes. If omitted, the core will invoke this capability of the driver for all applicable key sizes. Key sizes are expressed in bits.
* `"names"` (optional, object). A mapping from entry point names described by the `"functions"` property, to the name of the C function in the driver that implements the corresponding function. If a function is not listed here, name of the driver function that implements it is the driver's prefix followed by an underscore (`_`) followed by the function name. If this property is omitted, it is equivalent to an empty object (so each entry point *suffix* is implemented by a function called *prefix*`_`*suffix*).
* `"fallback"` (optional for transparent drivers, not permitted for opaque drivers, boolean). If present and true, the driver may return `PSA_ERROR_NOT_SUPPORTED`, in which case the core should call another driver or use built-in code to perform this operation. If absent or false, the core should not include built-in code to perform this particular cryptographic mechanism. See the section “[Fallback](#fallback)” for more information.
Example: the following capability declares that the driver can perform deterministic ECDSA signatures using SHA-256 or SHA-384 with a SECP256R1 or SECP384R1 private key (with either hash being possible in combination with either curve). If the prefix of this driver is `"acme"`, the function that performs the signature is called `acme_sign_hash`.
```
{
"functions": ["sign_hash"],
"algorithms": ["PSA_ALG_DETERMINISTIC_ECDSA(PSA_ALG_SHA_256)",
"PSA_ALG_DETERMINISTIC_ECDSA(PSA_ALG_SHA_384)"],
"key_types": ["PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_CURVE_SECP_R1)"],
"key_sizes": [256, 384]
}
```
### Algorithm and key specifications
#### Algorithm specifications
An algorithm specification is a string consisting of a `PSA_ALG_xxx` macro that specifies a cryptographic algorithm defined by the PSA Cryptography API. If the macro takes arguments, the string must have the syntax of a C macro call and each argument must be an algorithm specification or a decimal or hexadecimal literal with no suffix, depending on the expected type of argument.
Spaces are optional after commas. Whether other whitespace is permitted is implementation-specific.
Valid examples:
```
PSA_ALG_SHA_256
PSA_ALG_HMAC(PSA_ALG_SHA_256)
PSA_ALG_KEY_AGREEMENT(PSA_ALG_ECDH, PSA_ALG_HKDF(PSA_ALG_SHA_256))
```
#### Key type specifications
An algorithm specification is a string consisting of a `PSA_KEY_TYPE_xxx` macro that specifies a key type defined by the PSA Cryptography API. If the macro takes an argument, the string must have the syntax of a C macro call and each argument must be the name of a constant of suitable type (curve or group).
The name `_` may be used instead of a curve or group to indicate that the capability concerns all curves or groups.
Valid examples:
```
PSA_KEY_TYPE_AES
PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_CURVE_SECP_R1)
PSA_KEY_TYPE_ECC_KEY_PAIR(_)
```
### Driver entry points
#### Overview of driver entry points
Drivers define functions, each of which implements an aspect of a capability of a driver, such as a cryptographic operation, a part of a cryptographic operation, or a key management action. These functions are called the **entry points** of the driver. Most driver entry points correspond to a particular function in the PSA Cryptography API. For example, if a call to `psa_sign_hash()` is dispatched to a driver, it invokes the driver's `sign_hash` function.
All driver entry points return a status of type `psa_status_t` which should use the status codes documented for PSA services in general and for PSA Crypto in particular: `PSA_SUCCESS` indicates that the function succeeded, and `PSA_ERROR_xxx` values indicate that an error occurred.
The signature of a driver entry point generally looks like the signature of the PSA Crypto API that it implements, with some modifications. This section gives an overview of modifications that apply to whole classes of entry points. Refer to the reference section for each entry point or entry point family for details.
* For entry points that operate on an existing key, the `psa_key_id_t` parameter is replaced by a sequence of three parameters that describe the key:
1. `const psa_key_attributes_t *attributes`: the key attributes.
2. `const uint8_t *key_buffer`: a key material or key context buffer.
3. `size_t key_buffer_size`: the size of the key buffer in bytes.
For transparent drivers, the key buffer contains the key material, in the same format as defined for `psa_export_key()` and `psa_export_public_key()` in the PSA Cryptography API. For opaque drivers, the content of the key buffer is entirely up to the driver.
* For entry points that involve a multi-part operation, the operation state type (`psa_XXX_operation_t`) is replaced by a driver-specific operation state type (*prefix*`_XXX_operation_t`).
Some entry points are grouped in families that must be implemented as a whole. If a driver supports a entry point family, it must provide all the entry points in the family.
#### General considerations on driver entry point parameters
Buffer parameters for driver entry points obey the following conventions:
* An input buffer has the type `const uint8_t *` and is immediately followed by a parameter of type `size_t` that indicates the buffer size.
* An output buffer has the type `uint8_t *` and is immediately followed by a parameter of type `size_t` that indicates the buffer size. A third parameter of type `size_t *` is provided to report the actual buffer size if the function succeeds.
* An in-out buffer has the type `uint8_t *` and is immediately followed by a parameter of type `size_t` that indicates the buffer size. Note that the buffer size does not change.
Buffers of size 0 may be represented with either a null pointer or a non-null pointer.
Input buffers and other input-only parameters (`const` pointers) may be in read-only memory. Overlap is possible between input buffers, and between an input buffer and an output buffer, but not between two output buffers or between a non-buffer parameter and another parameter.
#### Driver entry points for single-part cryptographic operations
The following driver entry points perform a cryptographic operation in one shot (single-part operation):
* `"hash_compute"` (transparent drivers only): calculation of a hash. Called by `psa_hash_compute()` and `psa_hash_compare()`. To verify a hash with `psa_hash_compare()`, the core calls the driver's `"hash_compute"` entry point and compares the result with the reference hash value.
* `"mac_compute"`: calculation of a MAC. Called by `psa_mac_compute()` and possibly `psa_mac_verify()`. To verify a mac with `psa_mac_verify()`, the core calls an applicable driver's `"mac_verify"` entry point if there is one, otherwise the core calls an applicable driver's `"mac_compute"` entry point and compares the result with the reference MAC value.
* `"mac_verify"`: verification of a MAC. Called by `psa_mac_verify()`. This entry point is mainly useful for drivers of secure elements that verify a MAC without revealing the correct MAC. Although transparent drivers may implement this entry point in addition to `"mac_compute"`, it is generally not useful because the core can call the `"mac_compute"` entry point and compare with the expected MAC value.
* `"cipher_encrypt"`: unauthenticated symmetric cipher encryption. Called by `psa_cipher_encrypt()`.
* `"cipher_decrypt"`: unauthenticated symmetric cipher decryption. Called by `psa_cipher_decrypt()`.
* `"aead_encrypt"`: authenticated encryption with associated data. Called by `psa_aead_encrypt()`.
* `"aead_decrypt"`: authenticated decryption with associated data. Called by `psa_aead_decrypt()`.
* `"asymmetric_encrypt"`: asymmetric encryption. Called by `psa_asymmetric_encrypt()`.
* `"asymmetric_decrypt"`: asymmetric decryption. Called by `psa_asymmetric_decrypt()`.
* `"sign_hash"`: signature of an already calculated hash. Called by `psa_sign_hash()` and possibly `psa_sign_message()`. To sign a message with `psa_sign_message()`, the core calls an applicable driver's `"sign_message"` entry point if there is one, otherwise the core calls an applicable driver's `"hash_compute"` entry point followed by an applicable driver's `"sign_hash"` entry point.
* `"verify_hash"`: verification of an already calculated hash. Called by `psa_verify_hash()` and possibly `psa_verify_message()`. To verify a message with `psa_verify_message()`, the core calls an applicable driver's `"verify_message"` entry point if there is one, otherwise the core calls an applicable driver's `"hash_compute"` entry point followed by an applicable driver's `"verify_hash"` entry point.
* `"sign_message"`: signature of a message. Called by `psa_sign_message()`.
* `"verify_message"`: verification of a message. Called by `psa_verify_message()`.
* `"key_agreement"`: key agreement without a subsequent key derivation. Called by `psa_raw_key_agreement()` and possibly `psa_key_derivation_key_agreement()`.
### Driver entry points for multi-part operations
#### General considerations on multi-part operations
The entry points that implement each step of a multi-part operation are grouped into a family. A driver that implements a multi-part operation must define all of the entry points in this family as well as a type that represents the operation context. The lifecycle of a driver operation context is similar to the lifecycle of an API operation context:
1. The core initializes operation context objects to either all-bits-zero or to logical zero (`{0}`), at its discretion.
1. The core calls the `xxx_setup` entry point for this operation family. If this fails, the core destroys the operation context object without calling any other driver entry point on it.
1. The core calls other entry points that manipulate the operation context object, respecting the constraints.
1. If any entry point fails, the core calls the driver's `xxx_abort` entry point for this operation family, then destroys the operation context object without calling any other driver entry point on it.
1. If a “finish” entry point fails, the core destroys the operation context object without calling any other driver entry point on it. The finish entry points are: *prefix*`_mac_sign_finish`, *prefix*`_mac_verify_finish`, *prefix*`_cipher_fnish`, *prefix*`_aead_finish`, *prefix*`_aead_verify`.
If a driver implements a multi-part operation but not the corresponding single-part operation, the core calls the driver's multipart operation entry points to perform the single-part operation.
#### Multi-part operation entry point family `"hash_multipart"`
This family corresponds to the calculation of a hash in multiple steps.
This family applies to transparent drivers only.
This family requires the following type and functions:
* Type `"hash_operation_t"`: the type of a hash operation context. It must be possible to copy a hash operation context byte by byte, therefore hash operation contexts must not contain any embedded pointers (except pointers to global data that do not change after the setup step).
* `"hash_setup"`: called by `psa_hash_setup()`.
* `"hash_update"`: called by `psa_hash_update()`.
* `"hash_finish"`: called by `psa_hash_finish()` and `psa_hash_verify()`.
* `"hash_abort"`: called by all multi-part hash functions.
To verify a hash with `psa_hash_verify()`, the core calls the driver's *prefix`_hash_finish` entry point and compares the result with the reference hash value.
For example, a driver with the prefix `"acme"` that implements the `"hash_multipart"` entry point family must define the following type and entry points (assuming that the capability does not use the `"names"` property to declare different type and entry point names):
```
typedef ... acme_hash_operation_t;
psa_status_t acme_hash_setup(acme_hash_operation_t *operation,
psa_algorithm_t alg);
psa_status_t acme_hash_update(acme_hash_operation_t *operation,
const uint8_t *input,
size_t input_length);
psa_status_t acme_hash_finish(acme_hash_operation_t *operation,
uint8_t *hash,
size_t hash_size,
size_t *hash_length);
psa_status_t acme_hash_abort(acme_hash_operation_t *operation);
```
#### Operation family `"mac_multipart"`
TODO
#### Operation family `"mac_verify_multipart"`
TODO
#### Operation family `"cipher_encrypt_multipart"`
TODO
#### Operation family `"cipher_decrypt_multipart"`
TODO
#### Operation family `"aead_encrypt_multipart"`
TODO
#### Operation family `"aead_decrypt_multipart"`
TODO
#### Operation family `"key_derivation"`
This family requires the following type and entry points:
* Type `"key_derivation_operation_t"`: the type of a key derivation operation context.
* `"key_derivation_setup"`: called by `psa_key_derivation_setup()`.
* `"key_derivation_set_capacity"`: called by `psa_key_derivation_set_capacity()`. The core will always enforce the capacity, therefore this function does not need to do anything for algorithms where the output stream only depends on the effective generated length and not on the capacity.
* `"key_derivation_input_bytes"`: called by `psa_key_derivation_input_bytes()` and `psa_key_derivation_input_key()`. For transparent drivers, when processing a call to `psa_key_derivation_input_key()`, the core always calls the applicable driver's `"key_derivation_input_bytes"` entry point.
* `"key_derivation_input_key"` (opaque drivers only)
* `"key_derivation_output_bytes"`: called by `psa_key_derivation_output_bytes()`; also by `psa_key_derivation_output_key()` for transparent drivers.
* `"key_derivation_abort"`: called by all key derivation functions.
TODO: key input and output for opaque drivers; deterministic key generation for transparent drivers
TODO
### Driver entry points for key management
The driver entry points for key management differs significantly between [transparent drivers](#key-management-with-transparent-drivers) and [opaque drivers](#key-management-with-transparent-drivers). Refer to the applicable section for each driver type.
### Miscellaneous driver entry points
#### Driver initialization
A driver may declare an `"init"` entry point in a capability with no algorithm, key type or key size. If so, the driver calls this entry point once during the initialization of the PSA Crypto subsystem. If the init entry point of any driver fails, the initialization of the PSA Crypto subsystem fails.
When multiple drivers have an init entry point, the order in which they are called is unspecified. It is also unspecified whether other drivers' init functions are called if one or more init function fails.
On platforms where the PSA Crypto implementation is a subsystem of a single application, the initialization of the PSA Crypto subsystem takes place during the call to `psa_crypto_init()`. On platforms where the PSA Crypto implementation is separate from the application or applications, the initialization the initialization of the PSA Crypto subsystem takes place before or during the first time an application calls `psa_crypto_init()`.
The init function does not take any parameter.
### Combining multiple drivers
To declare a cryptoprocessor can handle both cleartext and plaintext keys, you need to provide two driver descriptions, one for a transparent driver and one for an opaque driver. You can use the mapping in capabilities' `"names"` property to arrange for multiple driver entry points to map to the same C function.
## Transparent drivers
### Key format for transparent drivers
The format of a key for transparent drivers is the same as in applications. Refer to the documentation of `psa_export_key()` and `psa_export_public_key()`.
### Key management with transparent drivers
Transparent drivers may provide the following key management entry points:
* `"generate_key"`: called by `psa_generate_key()`, only when generating a key pair (key such that `PSA_KEY_TYPE_IS_ASYMMETRIC` is true).
* `"derive_key"`: called by `psa_key_derivation_output_key()`, only when deriving a key pair (key such that `PSA_KEY_TYPE_IS_ASYMMETRIC` is true).
* `"export_public_key"`: called by the core to obtain the public key of a key pair. The core may call this function at any time to obtain the public key, which can be for `psa_export_public_key()` but also at other times, including during a cryptographic operation that requires the public key such as a call to `psa_verify_message()` on a key pair object.
Transparent drivers are not involved when importing, exporting, copying or destroying keys, or when generating or deriving symmetric keys.
### Fallback
If a transparent driver entry point is part of a capability which has a true `"fallback"` property and returns `PSA_ERROR_NOT_SUPPORTED`, the built-in software implementation will be called instead. Any other value (`PSA_SUCCESS` or a different error code) is returned to the application.
If there are multiple available transparent drivers, the core tries them in turn until one is declared without a true `"fallback"` property or returns a status other than `PSA_ERROR_NOT_SUPPORTED`. The order in which the drivers are called is unspecified and may be different for different entry points.
If a transparent driver entry point is part of a capability where the `"fallback"` property is false or omitted, the core should not include any other code for this capability, whether built in or in another transparent driver.
## Opaque drivers
Opaque drivers allow a PSA Cryptography implementation to delegate cryptographic operations to a separate environment that might not allow exporting key material in cleartext. The opaque driver interface is designed so that the core never inspects the representation of a key. The opaque driver interface is designed to support two subtypes of cryptoprocessors:
* Some cryptoprocessors do not have persistent storage for individual keys. The representation of a key is the key material wrapped with a master key which is located in the cryptoprocessor and never exported from it. The core stores this wrapped key material on behalf of the cryptoprocessor.
* Some cryptoprocessors have persistent storage for individual keys. The representation of a key is an identifier such as label or slot number. The core stores this identifier.
### Key format for opaque drivers
The format of a key for opaque drivers is an opaque blob. The content of this blob is fully up to the driver. The core merely stores this blob.
Note that since the core stores the key context blob as it is in memory, it must only contain data that is meaningful after a reboot. In particular, it must not contain any pointers or transient handles.
The `"key_context"` property in the [driver description](#driver-description-top-level-element) specifies how to calculate the size of the key context as a function of the key type and size. This is an object with the following properties:
* `"base_size"` (integer or string, optional): this many bytes are included in every key context. If omitted, this value defaults to 0.
* `"key_pair_size"` (integer or string, optional): this many bytes are included in every key context for a key pair. If omitted, this value defaults to 0.
* `"public_key_size"` (integer or string, optional): this many bytes are included in every key context for a public key. If omitted, this value defaults to 0.
* `"symmetric_factor"` (integer or string, optional): every key context for a symmetric key includes this many times the key size. If omitted, this value defaults to 0.
* `"store_public_key"` (boolean, optional): If specified and true, for a key pair, the key context includes space for the public key. If omitted or false, no additional space is added for the public key.
* `"size_function"` (string, optional): the name of a function that returns the number of bytes that the driver needs in a key context for a key. This may be a pointer to function. This must be a C identifier; more complex expressions are not permitted. If the core uses this function, it supersedes all the other properties.
The integer properties must be C language constants. A typical value for `"base_size"` is `sizeof(acme_key_context_t)` where `acme_key_context_t` is a type defined in a driver header file.
#### Size of a dynamically allocated key context
If the core supports dynamic allocation for the key context and chooses to use it, and the driver specification includes the `"size_function"` property, the size of the key context is at least
```
size_function(key_type, key_bits)
```
where `size_function` is the function named in the `"size_function"` property, `key_type` is the key type and `key_bits` is the key size in bits. The prototype of the size function is
```
size_t size_function(psa_key_type_t key_type, size_t key_bits);
```
#### Size of a statically allocated key context
If the core does not support dynamic allocation for the key context or chooses not to use it, or if the driver specification does not include the `"size_function"` property, the size of the key context for a key of type `key_type` and of size `key_bits` bits is:
* For a key pair (`PSA_KEY_TYPE_IS_KEY_PAIR(key_type)` is true):
```
base_size + key_pair_size + public_key_overhead
```
where `public_key_overhead = PSA_EXPORT_PUBLIC_KEY_MAX_SIZE(key_type, key_bits)` if the `"store_public_key"` property is true and `public_key_overhead = 0` otherwise.
* For a public key (`PSA_KEY_TYPE_IS_PUBLIC_KEY(key_type)` is true):
```
base_size + public_key_size
```
* For a symmetric key (not a key pair or public key):
```
base_size + symmetric_factor * key_bytes
```
where `key_bytes = ((key_bits + 7) / 8)` is the key size in bytes.
#### Key context size for a secure element with storage
If the key is stored in the secure element and the driver only needs to store a label for the key, use `"base_size"` as the size of the label plus any other metadata that the driver needs to store, and omit the other properties.
If the key is stored in the secure element, but the secure element does not store the public part of a key pair and cannot recompute it on demand, additionally use the `"store_public_key"` property with the value `true`. Note that this only influences the size of the key context: the driver code must copy the public key to the key context and retrieve it on demand in its `export_public_key` entry point.
#### Key context size for a secure element without storage
If the key is stored in wrapped form outside the secure element, and the wrapped form of the key plus any metadata has up to *N* bytes of overhead, use *N* as the value of the `"base_size"` property and set the `"symmetric_factor"` property to 1. Set the `"key_pair_size"` and `"public_key_size"` properties appropriately for the largest supported key pair and the largest supported public key respectively.
### Key management with opaque drivers
Transparent drivers may provide the following key management entry points:
* `"export_key"`: called by `psa_export_key()`, or by `psa_copy_key()` when copying a key from or to a different [location](#lifetimes-and-locations).
* `"export_public_key"`: called by the core to obtain the public key of a key pair. The core may call this entry point at any time to obtain the public key, which can be for `psa_export_public_key()` but also at other times, including during a cryptographic operation that requires the public key such as a call to `psa_verify_message()` on a key pair object.
* `"import_key"`: called by `psa_import_key()`, or by `psa_copy_key()` when copying a key from another location.
* `"generate_key"`: called by `psa_generate_key()`.
* `"derive_key"`: called by `psa_key_derivation_output_key()`.
* `"copy_key"`: called by `psa_copy_key()` when copying a key within the same [location](#lifetimes-and-locations).
In addition, secure elements that store the key material internally must provide the following two entry points:
* `"allocate_key"`: called by `psa_import_key()`, `psa_generate_key()`, `psa_key_derivation_output_key()` or `psa_copy_key()` before creating a key in the location of this driver.
* `"destroy_key"`: called by `psa_destroy_key()`.
#### Key creation in a secure element without storage
This section describes the key creation process for secure elements that do not store the key material. The driver must obtain a wrapped form of the key material which the core will store. A driver for such a secure element has no `"allocate_key"` or `"destroy_key"` entry point.
When creating a key with an opaque driver which does not have an `"allocate_key"` or `"destroy_key"` entry point:
1. The core allocates memory for the key context.
2. The core calls the driver's import, generate, derive or copy function.
3. The core saves the resulting wrapped key material and any other data that the key context may contain.
To destroy a key, the core simply destroys the wrapped key material, without invoking driver code.
#### Key management in a secure element with storage
This section describes the key creation and key destruction processes for secure elements that have persistent storage for the key material. A driver for such a secure element has two mandatory entry points:
* `"allocate_key"`: this function obtains an internal identifier for the key. This may be, for example, a unique label or a slot number.
* `"destroy_key"`: this function invalidates the internal identifier and destroys the associated key material.
These functions have the following prototypes:
```
psa_status_t acme_allocate_key(const psa_key_attributes_t *attributes,
uint8_t *key_buffer,
size_t key_buffer_size);
psa_status_t acme_destroy_key(const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size);
```
When creating a persistent key with an opaque driver which has an `"allocate_key"` entry point:
1. The core calls the driver's `"allocate_key"` entry point. This function typically allocates an internal identifier for the key without modifying the state of the secure element and stores the identifier in the key context. This function should not modify the state of the secure element. It may modify the copy of the persistent state of the driver in memory.
1. The core saves the key context to persistent storage.
1. The core calls the driver's key creation entry point.
1. The core saves the updated key context to persistent storage.
If a failure occurs after the `"allocate_key"` step but before the call to the second driver entry point, the core will do one of the following:
* Fail the creation of the key without indicating this to the driver. This can happen, in particular, if the device loses power immediately after the key allocation entry point returns.
* Call the driver's `"destroy_key"` entry point.
To destroy a key, the core calls the driver's `"destroy_key"` entry point.
Note that the key allocation and destruction entry point must not rely solely on the key identifier in the key attributes to identify a key. Some implementations of the PSA Crypto API store keys on behalf of multiple clients, and different clients may use the same key identifier to designate different keys. The manner in which the core distinguishes keys that have the same identifier but are part of the key namespace for different clients is implementation-dependent and is not accessible to drivers. Some typical strategies to allocate an internal key identifier are:
* Maintain a set of free slot numbers which is stored either in the secure element or in the driver's persistent storage. To allocate a key slot, find a free slot number, mark it as occupied and store the number in the key context. When the key is destroyed, mark the slot number as free.
* Maintain a monotonic counter with a practically unbounded range in the secure element or in the driver's persistent storage. To allocate a key slot, increment the counter and store the current value in the key context. Destroying a key does not change the counter.
TODO: explain constraints on how the driver updates its persistent state for resilience
TODO: some of the above doesn't apply to volatile keys
#### Key creation entry points in opaque drivers
The key creation entry points have the following prototypes:
```
psa_status_t acme_import_key(const psa_key_attributes_t *attributes,
const uint8_t *data,
size_t data_length,
uint8_t *key_buffer,
size_t key_buffer_size);
psa_status_t acme_generate_key(const psa_key_attributes_t *attributes,
uint8_t *key_buffer,
size_t key_buffer_size);
```
If the driver has an [`"allocate_key"` entry point](#key-management-in-a-secure-element-with-storage), the core calls the `"allocate_key"` entry point with the same attributes on the same key buffer before calling the key creation function.
TODO: derivation, copy
#### Key export entry points in opaque drivers
The key export entry points have the following prototypes:
```
psa_status_t acme_export_key(const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size);
uint8_t *data,
size_t data_size,
size_t *data_length);
psa_status_t acme_export_public_key(const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size);
uint8_t *data,
size_t data_size,
size_t *data_length);
```
The core will only call `acme_export_public_key` on a private key. Drivers implementers may choose to store the public key in the key context buffer or to recalculate it on demand. If the key context includes the public key, it needs to have an adequate size; see [“Key format for opaque drivers”](#key-format-for-opaque-drivers).
The core guarantees that the size of the output buffer (`data_size`) is sufficient to export any key with the given attributes. The driver must set `*data_length` to the exact size of the exported key.
### Opaque driver persistent state
The core maintains persistent state on behalf of an opaque driver. This persistent state consists of a single byte array whose size is given by the `"persistent_state_size"` property in the [driver description](#driver-description-top-level-element).
The core loads the persistent state in memory before it calls the driver's [init entry point](#driver-initialization). It is adjusted to match the size declared by the driver, in case a driver upgrade changes the size:
* The first time the driver is loaded on a system, the persistent state is all-bits-zero.
* If the stored persistent state is smaller than the declared size, the core pads the persistent state with all-bits-zero at the end.
* If the stored persistent state is larger than the declared size, the core truncates the persistent state to the declared size.
The core provides the following callback functions, which an opaque driver may call while it is processing a call from the driver:
```
psa_status_t psa_crypto_driver_get_persistent_state(uint_8_t **persistent_state_ptr);
psa_status_t psa_crypto_driver_commit_persistent_state(size_t from, size_t length);
```
`psa_crypto_driver_get_persistent_state` sets `*persistent_state_ptr` to a pointer to the first byte of the persistent state. This pointer remains valid during a call to a driver entry point. Once the entry point returns, the pointer is no longer valid. The core guarantees that calls to `psa_crypto_driver_get_persistent_state` within the same entry point return the same address for the persistent state, but this address may change between calls to an entry point.
`psa_crypto_driver_commit_persistent_state` updates the persistent state in persistent storage. Only the portion at byte offsets `from` inclusive to `from + length` exclusive is guaranteed to be updated; it is unspecified whether changes made to other parts of the state are taken into account. The driver must call this function after updating the persistent state in memory and before returning from the entry point, otherwise it is unspecified whether the persistent state is updated.
The core will not update the persistent state in storage while an entry point is running except when the entry point calls `psa_crypto_driver_commit_persistent_state`. It may update the persistent state in storage after an entry point returns.
In a multithreaded environment, the driver may only call these two functions from the thread that is executing the entry point.
## How to use drivers from an application
### Using transparent drivers
Transparent drivers linked into the library are automatically used for the mechanisms that they implement.
### Using opaque drivers
Each opaque driver is assigned a [location](#lifetimes-and-locations). The driver is invoked for all actions that use a key in that location. A key's location is indicated by its lifetime. The application chooses the key's lifetime when it creates the key.
For example, the following snippet creates an AES-GCM key which is only accessible inside a secure element.
```
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
PSA_KEY_PERSISTENCE_DEFAULT, PSA_KEY_LOCATION_acme));
psa_set_key_identifer(&attributes, 42);
psa_set_key_type(&attributes, PSA_KEY_TYPE_AES);
psa_set_key_size(&attributes, 128);
psa_set_key_algorithm(&attributes, PSA_ALG_GCM);
psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT);
psa_key_handle_t handle = 0;
psa_generate_key(&attributes, &handle);
```
## Using opaque drivers from an application
### Lifetimes and locations
The PSA Cryptography API, version 1.0.0, defines [lifetimes](https://armmbed.github.io/mbed-crypto/html/api/keys/attributes.html?highlight=psa_key_lifetime_t#c.psa_key_lifetime_t) as an attribute of a key that indicates where the key is stored and which application and system actions will create and destroy it. The lifetime is expressed as a 32-bit value (`typedef uint32_t psa_key_lifetime_t`). An upcoming version of the PSA Cryptography API defines more structure for lifetime values to separate these two aspects of the lifetime:
* Bits 07 are a _persistence level_. This value indicates what device management actions can cause it to be destroyed. In particular, it indicates whether the key is volatile or persistent.
* Bits 831 are a _location indicator_. This value indicates where the key material is stored and where operations on the key are performed. Location values can be stored in a variable of type `psa_key_location_t`.
An opaque driver is attached to a specific location. Keys in the default location (`PSA_KEY_LOCATION_LOCAL_STORAGE = 0`) are transparent: the core has direct access to the key material. For keys in a location that is managed by an opaque driver, only the secure element has access to the key material and can perform operations on the key, while the core only manipulates a wrapped form of the key or an identifier of the key.
### Creating a key in a secure element
The core defines a compile-time constant for each opaque driver indicating its location called `PSA_KEY_LOCATION_`*prefix* where *prefix* is the value of the `"prefix"` property in the driver description. For convenience, Mbed TLS also declares a compile-time constant for the corresponding lifetime with the default persistence called `PSA_KEY_LIFETIME_`*prefix*. Therefore, to declare an opaque key in the location with the prefix `foo` with the default persistence, call `psa_set_key_lifetime` during the key creation as follows:
```
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_foo);
```
To declare a volatile key:
```
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
PSA_KEY_LOCATION_foo,
PSA_KEY_PERSISTENCE_VOLATILE));
```
Generally speaking, to declare a key with a specified persistence:
```
psa_set_key_lifetime(&attributes, PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
PSA_KEY_LOCATION_foo,
persistence));
```
## Open questions
### Driver declarations
#### Declaring driver functions
The core may want to provide declarations for the driver functions so that it can compile code using them. At the time of writing this paragraph, the driver headers must define types but there is no obligation for them to declare functions. The core knows what the function names and argument types are, so it can generate prototypes.
It should be ok for driver functions to be function-like macros or function pointers.
#### Driver location values
How does a driver author decide which location values to use? It should be possible to combine drivers from different sources. Use the same vendor assignment as for PSA services?
Can the driver assembly process generate distinct location values as needed? This can be convenient, but it's also risky: if you upgrade a device, you need the location values to be the same between builds.
### Driver function interfaces
#### Driver function parameter conventions
Should 0-size buffers be guaranteed to have a non-null pointers?
Should drivers really have to cope with overlap?
Should the core guarantee that the output buffer size has the size indicated by the applicable buffer size macro (which may be an overestimation)?
### Partial computations in drivers
#### Substitution points
Earlier drafts of the driver interface had a concept of _substitution points_: places in the calculation where a driver may be called. Some hardware doesn't do the whole calculation, but only the “main” part. This goes both for transparent and opaque drivers. Some common examples:
* A processor that performs the RSA exponentiation, but not the padding. The driver should be able to leverage the padding code in the core.
* A processor that performs a block cipher operation only for a single block, or only in ECB mode, or only in CTR mode. The core would perform the block mode (CBC, CTR, CCM, ...).
This concept, or some other way to reuse portable code such as specifying inner functions like `psa_rsa_pad` in the core, should be added to the specification.
### Key management
#### Mixing drivers in key derivation
How does `psa_key_derivation_output_key` work when the extraction part and the expansion part use different drivers?
#### Public key calculation
ECC key pairs are represented as the private key value only. The public key needs to be calculated from that. Both transparent drivers and opaque drivers provide a function to calculate the public key (`"export_public_key"`).
The specification doesn't mention when the public key might be calculated. The core may calculate it on creation, on demand, or anything in between. Opaque drivers have a choice of storing the public key in the key context or calculating it on demand and can convey whether the core should store the public key with the `"store_public_key"` property. Is this good enough or should the specification include non-functional requirements?
### Opaque drivers
#### Opaque driver persistent state
The driver is allowed to update the state at any time. Is this ok?
An example use case for updating the persistent state at arbitrary times is to renew a key that is used to encrypt communications between the application processor and the secure element.
`psa_crypto_driver_get_persistent_state` does not identify the calling driver, so the driver needs to remember which driver it's calling. This may require a thread-local variable in a multithreaded core. Is this ok?
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/**
* \file doc_mainpage.h
*
* \brief Main page documentation file.
*/
/*
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @mainpage mbed TLS v2.24.0 source code documentation
*
* This documentation describes the internal structure of mbed TLS. It was
* automatically generated from specially formatted comment blocks in
* mbed TLS's source code using Doxygen. (See
* http://www.stack.nl/~dimitri/doxygen/ for more information on Doxygen)
*
* mbed TLS has a simple setup: it provides the ingredients for an SSL/TLS
* implementation. These ingredients are listed as modules in the
* \ref mainpage_modules "Modules section". This "Modules section" introduces
* the high-level module concepts used throughout this documentation.\n
* Some examples of mbed TLS usage can be found in the \ref mainpage_examples
* "Examples section".
*
* @section mainpage_modules Modules
*
* mbed TLS supports SSLv3 up to TLSv1.2 communication by providing the
* following:
* - TCP/IP communication functions: listen, connect, accept, read/write.
* - SSL/TLS communication functions: init, handshake, read/write.
* - X.509 functions: CRT, CRL and key handling
* - Random number generation
* - Hashing
* - Encryption/decryption
*
* Above functions are split up neatly into logical interfaces. These can be
* used separately to provide any of the above functions or to mix-and-match
* into an SSL server/client solution that utilises a X.509 PKI. Examples of
* such implementations are amply provided with the source code.
*
* Note that mbed TLS does not provide a control channel or (multiple) session
* handling without additional work from the developer.
*
* @section mainpage_examples Examples
*
* Example server setup:
*
* \b Prerequisites:
* - X.509 certificate and private key
* - session handling functions
*
* \b Setup:
* - Load your certificate and your private RSA key (X.509 interface)
* - Setup the listening TCP socket (TCP/IP interface)
* - Accept incoming client connection (TCP/IP interface)
* - Initialise as an SSL-server (SSL/TLS interface)
* - Set parameters, e.g. authentication, ciphers, CA-chain, key exchange
* - Set callback functions RNG, IO, session handling
* - Perform an SSL-handshake (SSL/TLS interface)
* - Read/write data (SSL/TLS interface)
* - Close and cleanup (all interfaces)
*
* Example client setup:
*
* \b Prerequisites:
* - X.509 certificate and private key
* - X.509 trusted CA certificates
*
* \b Setup:
* - Load the trusted CA certificates (X.509 interface)
* - Load your certificate and your private RSA key (X.509 interface)
* - Setup a TCP/IP connection (TCP/IP interface)
* - Initialise as an SSL-client (SSL/TLS interface)
* - Set parameters, e.g. authentication mode, ciphers, CA-chain, session
* - Set callback functions RNG, IO
* - Perform an SSL-handshake (SSL/TLS interface)
* - Verify the server certificate (SSL/TLS interface)
* - Write/read data (SSL/TLS interface)
* - Close and cleanup (all interfaces)
*/

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/**
* \file net.h
*
* \brief Deprecated header file that includes net_sockets.h
*
* \deprecated Superseded by mbedtls/net_sockets.h
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
#include "mbedtls/net_sockets.h"
#if defined(MBEDTLS_DEPRECATED_WARNING)
#warning "Deprecated header file: Superseded by mbedtls/net_sockets.h"
#endif /* MBEDTLS_DEPRECATED_WARNING */
#endif /* !MBEDTLS_DEPRECATED_REMOVED */

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@@ -1,140 +0,0 @@
/**
* \file pk_internal.h
*
* \brief Public Key abstraction layer: wrapper functions
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBEDTLS_PK_WRAP_H
#define MBEDTLS_PK_WRAP_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "mbedtls/pk.h"
struct mbedtls_pk_info_t
{
/** Public key type */
mbedtls_pk_type_t type;
/** Type name */
const char *name;
/** Get key size in bits */
size_t (*get_bitlen)( const void * );
/** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */
int (*can_do)( mbedtls_pk_type_t type );
/** Verify signature */
int (*verify_func)( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len );
/** Make signature */
int (*sign_func)( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/** Verify signature (restartable) */
int (*verify_rs_func)( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
void *rs_ctx );
/** Make signature (restartable) */
int (*sign_rs_func)( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng, void *rs_ctx );
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/** Decrypt message */
int (*decrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
/** Encrypt message */
int (*encrypt_func)( void *ctx, const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng );
/** Check public-private key pair */
int (*check_pair_func)( const void *pub, const void *prv );
/** Allocate a new context */
void * (*ctx_alloc_func)( void );
/** Free the given context */
void (*ctx_free_func)( void *ctx );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/** Allocate the restart context */
void * (*rs_alloc_func)( void );
/** Free the restart context */
void (*rs_free_func)( void *rs_ctx );
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/** Interface with the debug module */
void (*debug_func)( const void *ctx, mbedtls_pk_debug_item *items );
};
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/* Container for RSA-alt */
typedef struct
{
void *key;
mbedtls_pk_rsa_alt_decrypt_func decrypt_func;
mbedtls_pk_rsa_alt_sign_func sign_func;
mbedtls_pk_rsa_alt_key_len_func key_len_func;
} mbedtls_rsa_alt_context;
#endif
#if defined(MBEDTLS_RSA_C)
extern const mbedtls_pk_info_t mbedtls_rsa_info;
#endif
#if defined(MBEDTLS_ECP_C)
extern const mbedtls_pk_info_t mbedtls_eckey_info;
extern const mbedtls_pk_info_t mbedtls_eckeydh_info;
#endif
#if defined(MBEDTLS_ECDSA_C)
extern const mbedtls_pk_info_t mbedtls_ecdsa_info;
#endif
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
extern const mbedtls_pk_info_t mbedtls_rsa_alt_info;
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
extern const mbedtls_pk_info_t mbedtls_pk_opaque_info;
#endif
#endif /* MBEDTLS_PK_WRAP_H */

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@@ -1,128 +0,0 @@
/**
* \file pkcs12.h
*
* \brief PKCS#12 Personal Information Exchange Syntax
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBEDTLS_PKCS12_H
#define MBEDTLS_PKCS12_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "mbedtls/md.h"
#include "mbedtls/cipher.h"
#include "mbedtls/asn1.h"
#include <stddef.h>
#define MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA -0x1F80 /**< Bad input parameters to function. */
#define MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE -0x1F00 /**< Feature not available, e.g. unsupported encryption scheme. */
#define MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT -0x1E80 /**< PBE ASN.1 data not as expected. */
#define MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH -0x1E00 /**< Given private key password does not allow for correct decryption. */
#define MBEDTLS_PKCS12_DERIVE_KEY 1 /**< encryption/decryption key */
#define MBEDTLS_PKCS12_DERIVE_IV 2 /**< initialization vector */
#define MBEDTLS_PKCS12_DERIVE_MAC_KEY 3 /**< integrity / MAC key */
#define MBEDTLS_PKCS12_PBE_DECRYPT 0
#define MBEDTLS_PKCS12_PBE_ENCRYPT 1
#ifdef __cplusplus
extern "C" {
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
/**
* \brief PKCS12 Password Based function (encryption / decryption)
* for pbeWithSHAAnd128BitRC4
*
* \param pbe_params an ASN1 buffer containing the pkcs-12PbeParams structure
* \param mode either MBEDTLS_PKCS12_PBE_ENCRYPT or MBEDTLS_PKCS12_PBE_DECRYPT
* \param pwd the password used (may be NULL if no password is used)
* \param pwdlen length of the password (may be 0)
* \param input the input data
* \param len data length
* \param output the output buffer
*
* \return 0 if successful, or a MBEDTLS_ERR_XXX code
*/
int mbedtls_pkcs12_pbe_sha1_rc4_128( mbedtls_asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *input, size_t len,
unsigned char *output );
/**
* \brief PKCS12 Password Based function (encryption / decryption)
* for cipher-based and mbedtls_md-based PBE's
*
* \param pbe_params an ASN1 buffer containing the pkcs-12PbeParams structure
* \param mode either MBEDTLS_PKCS12_PBE_ENCRYPT or MBEDTLS_PKCS12_PBE_DECRYPT
* \param cipher_type the cipher used
* \param md_type the mbedtls_md used
* \param pwd the password used (may be NULL if no password is used)
* \param pwdlen length of the password (may be 0)
* \param input the input data
* \param len data length
* \param output the output buffer
*
* \return 0 if successful, or a MBEDTLS_ERR_XXX code
*/
int mbedtls_pkcs12_pbe( mbedtls_asn1_buf *pbe_params, int mode,
mbedtls_cipher_type_t cipher_type, mbedtls_md_type_t md_type,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *input, size_t len,
unsigned char *output );
#endif /* MBEDTLS_ASN1_PARSE_C */
/**
* \brief The PKCS#12 derivation function uses a password and a salt
* to produce pseudo-random bits for a particular "purpose".
*
* Depending on the given id, this function can produce an
* encryption/decryption key, an nitialization vector or an
* integrity key.
*
* \param data buffer to store the derived data in
* \param datalen length to fill
* \param pwd password to use (may be NULL if no password is used)
* \param pwdlen length of the password (may be 0)
* \param salt salt buffer to use
* \param saltlen length of the salt
* \param mbedtls_md mbedtls_md type to use during the derivation
* \param id id that describes the purpose (can be MBEDTLS_PKCS12_DERIVE_KEY,
* MBEDTLS_PKCS12_DERIVE_IV or MBEDTLS_PKCS12_DERIVE_MAC_KEY)
* \param iterations number of iterations
*
* \return 0 if successful, or a MD, BIGNUM type error.
*/
int mbedtls_pkcs12_derivation( unsigned char *data, size_t datalen,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *salt, size_t saltlen,
mbedtls_md_type_t mbedtls_md, int id, int iterations );
#ifdef __cplusplus
}
#endif
#endif /* pkcs12.h */

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@@ -1,107 +0,0 @@
/**
* \file pkcs5.h
*
* \brief PKCS#5 functions
*
* \author Mathias Olsson <mathias@kompetensum.com>
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBEDTLS_PKCS5_H
#define MBEDTLS_PKCS5_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "mbedtls/asn1.h"
#include "mbedtls/md.h"
#include <stddef.h>
#include <stdint.h>
#define MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA -0x2f80 /**< Bad input parameters to function. */
#define MBEDTLS_ERR_PKCS5_INVALID_FORMAT -0x2f00 /**< Unexpected ASN.1 data. */
#define MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE -0x2e80 /**< Requested encryption or digest alg not available. */
#define MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH -0x2e00 /**< Given private key password does not allow for correct decryption. */
#define MBEDTLS_PKCS5_DECRYPT 0
#define MBEDTLS_PKCS5_ENCRYPT 1
#ifdef __cplusplus
extern "C" {
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
/**
* \brief PKCS#5 PBES2 function
*
* \param pbe_params the ASN.1 algorithm parameters
* \param mode either MBEDTLS_PKCS5_DECRYPT or MBEDTLS_PKCS5_ENCRYPT
* \param pwd password to use when generating key
* \param pwdlen length of password
* \param data data to process
* \param datalen length of data
* \param output output buffer
*
* \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails.
*/
int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t datalen,
unsigned char *output );
#endif /* MBEDTLS_ASN1_PARSE_C */
/**
* \brief PKCS#5 PBKDF2 using HMAC
*
* \param ctx Generic HMAC context
* \param password Password to use when generating key
* \param plen Length of password
* \param salt Salt to use when generating key
* \param slen Length of salt
* \param iteration_count Iteration count
* \param key_length Length of generated key in bytes
* \param output Generated key. Must be at least as big as key_length
*
* \returns 0 on success, or a MBEDTLS_ERR_XXX code if verification fails.
*/
int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password,
size_t plen, const unsigned char *salt, size_t slen,
unsigned int iteration_count,
uint32_t key_length, unsigned char *output );
#if defined(MBEDTLS_SELF_TEST)
/**
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*/
int mbedtls_pkcs5_self_test( int verbose );
#endif /* MBEDTLS_SELF_TEST */
#ifdef __cplusplus
}
#endif
#endif /* pkcs5.h */

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@@ -1,420 +0,0 @@
/**
* \file psa_util.h
*
* \brief Utility functions for the use of the PSA Crypto library.
*
* \warning This function is not part of the public API and may
* change at any time.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBEDTLS_PSA_UTIL_H
#define MBEDTLS_PSA_UTIL_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
#include "psa/crypto.h"
#include "mbedtls/ecp.h"
#include "mbedtls/md.h"
#include "mbedtls/pk.h"
#include "mbedtls/oid.h"
#include <string.h>
/* Translations for symmetric crypto. */
static inline psa_key_type_t mbedtls_psa_translate_cipher_type(
mbedtls_cipher_type_t cipher )
{
switch( cipher )
{
case MBEDTLS_CIPHER_AES_128_CCM:
case MBEDTLS_CIPHER_AES_192_CCM:
case MBEDTLS_CIPHER_AES_256_CCM:
case MBEDTLS_CIPHER_AES_128_GCM:
case MBEDTLS_CIPHER_AES_192_GCM:
case MBEDTLS_CIPHER_AES_256_GCM:
case MBEDTLS_CIPHER_AES_128_CBC:
case MBEDTLS_CIPHER_AES_192_CBC:
case MBEDTLS_CIPHER_AES_256_CBC:
return( PSA_KEY_TYPE_AES );
/* ARIA not yet supported in PSA. */
/* case MBEDTLS_CIPHER_ARIA_128_CCM:
case MBEDTLS_CIPHER_ARIA_192_CCM:
case MBEDTLS_CIPHER_ARIA_256_CCM:
case MBEDTLS_CIPHER_ARIA_128_GCM:
case MBEDTLS_CIPHER_ARIA_192_GCM:
case MBEDTLS_CIPHER_ARIA_256_GCM:
case MBEDTLS_CIPHER_ARIA_128_CBC:
case MBEDTLS_CIPHER_ARIA_192_CBC:
case MBEDTLS_CIPHER_ARIA_256_CBC:
return( PSA_KEY_TYPE_ARIA ); */
default:
return( 0 );
}
}
static inline psa_algorithm_t mbedtls_psa_translate_cipher_mode(
mbedtls_cipher_mode_t mode, size_t taglen )
{
switch( mode )
{
case MBEDTLS_MODE_GCM:
return( PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_GCM, taglen ) );
case MBEDTLS_MODE_CCM:
return( PSA_ALG_AEAD_WITH_TAG_LENGTH( PSA_ALG_CCM, taglen ) );
case MBEDTLS_MODE_CBC:
if( taglen == 0 )
return( PSA_ALG_CBC_NO_PADDING );
/* Intentional fallthrough for taglen != 0 */
/* fallthrough */
default:
return( 0 );
}
}
static inline psa_key_usage_t mbedtls_psa_translate_cipher_operation(
mbedtls_operation_t op )
{
switch( op )
{
case MBEDTLS_ENCRYPT:
return( PSA_KEY_USAGE_ENCRYPT );
case MBEDTLS_DECRYPT:
return( PSA_KEY_USAGE_DECRYPT );
default:
return( 0 );
}
}
/* Translations for hashing. */
static inline psa_algorithm_t mbedtls_psa_translate_md( mbedtls_md_type_t md_alg )
{
switch( md_alg )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( PSA_ALG_MD2 );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( PSA_ALG_MD4 );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( PSA_ALG_MD5 );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( PSA_ALG_SHA_1 );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
return( PSA_ALG_SHA_224 );
case MBEDTLS_MD_SHA256:
return( PSA_ALG_SHA_256 );
#endif
#if defined(MBEDTLS_SHA512_C)
case MBEDTLS_MD_SHA384:
return( PSA_ALG_SHA_384 );
case MBEDTLS_MD_SHA512:
return( PSA_ALG_SHA_512 );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( PSA_ALG_RIPEMD160 );
#endif
case MBEDTLS_MD_NONE: /* Intentional fallthrough */
default:
return( 0 );
}
}
/* Translations for ECC. */
static inline int mbedtls_psa_get_ecc_oid_from_id(
psa_ecc_family_t curve, size_t bits,
char const **oid, size_t *oid_len )
{
switch( curve )
{
case PSA_ECC_FAMILY_SECP_R1:
switch( bits )
{
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
case 192:
*oid = MBEDTLS_OID_EC_GRP_SECP192R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP192R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
case 224:
*oid = MBEDTLS_OID_EC_GRP_SECP224R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP224R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
case 256:
*oid = MBEDTLS_OID_EC_GRP_SECP256R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP256R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
case 384:
*oid = MBEDTLS_OID_EC_GRP_SECP384R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP384R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
case 521:
*oid = MBEDTLS_OID_EC_GRP_SECP521R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP521R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
}
break;
case PSA_ECC_FAMILY_SECP_K1:
switch( bits )
{
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
case 192:
*oid = MBEDTLS_OID_EC_GRP_SECP192K1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP192K1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
case 224:
*oid = MBEDTLS_OID_EC_GRP_SECP224K1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP224K1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
case 256:
*oid = MBEDTLS_OID_EC_GRP_SECP256K1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_SECP256K1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
}
break;
case PSA_ECC_FAMILY_BRAINPOOL_P_R1:
switch( bits )
{
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
case 256:
*oid = MBEDTLS_OID_EC_GRP_BP256R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_BP256R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
case 384:
*oid = MBEDTLS_OID_EC_GRP_BP384R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_BP384R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
case 512:
*oid = MBEDTLS_OID_EC_GRP_BP512R1;
*oid_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_EC_GRP_BP512R1 );
return( 0 );
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
}
break;
}
(void) oid;
(void) oid_len;
return( -1 );
}
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH 1
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 521 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 521 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 192 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 224 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 256 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 384 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
#if MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH < ( 2 * ( ( 512 + 7 ) / 8 ) + 1 )
#undef MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH ( 2 * ( ( 512 + 7 ) / 8 ) + 1 )
#endif
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
/* Translations for PK layer */
static inline int mbedtls_psa_err_translate_pk( psa_status_t status )
{
switch( status )
{
case PSA_SUCCESS:
return( 0 );
case PSA_ERROR_NOT_SUPPORTED:
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
case PSA_ERROR_INSUFFICIENT_MEMORY:
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
case PSA_ERROR_INSUFFICIENT_ENTROPY:
return( MBEDTLS_ERR_ECP_RANDOM_FAILED );
case PSA_ERROR_BAD_STATE:
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
/* All other failures */
case PSA_ERROR_COMMUNICATION_FAILURE:
case PSA_ERROR_HARDWARE_FAILURE:
case PSA_ERROR_CORRUPTION_DETECTED:
return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
default: /* We return the same as for the 'other failures',
* but list them separately nonetheless to indicate
* which failure conditions we have considered. */
return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
}
}
/* Translations for ECC */
/* This function transforms an ECC group identifier from
* https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8
* into a PSA ECC group identifier. */
#if defined(MBEDTLS_ECP_C)
static inline psa_key_type_t mbedtls_psa_parse_tls_ecc_group(
uint16_t tls_ecc_grp_reg_id, size_t *bits )
{
const mbedtls_ecp_curve_info *curve_info =
mbedtls_ecp_curve_info_from_tls_id( tls_ecc_grp_reg_id );
if( curve_info == NULL )
return( 0 );
return( PSA_KEY_TYPE_ECC_KEY_PAIR(
mbedtls_ecc_group_to_psa( curve_info->grp_id, bits ) ) );
}
#endif /* MBEDTLS_ECP_C */
/* This function takes a buffer holding an EC public key
* exported through psa_export_public_key(), and converts
* it into an ECPoint structure to be put into a ClientKeyExchange
* message in an ECDHE exchange.
*
* Both the present and the foreseeable future format of EC public keys
* used by PSA have the ECPoint structure contained in the exported key
* as a subbuffer, and the function merely selects this subbuffer instead
* of making a copy.
*/
static inline int mbedtls_psa_tls_psa_ec_to_ecpoint( unsigned char *src,
size_t srclen,
unsigned char **dst,
size_t *dstlen )
{
*dst = src;
*dstlen = srclen;
return( 0 );
}
/* This function takes a buffer holding an ECPoint structure
* (as contained in a TLS ServerKeyExchange message for ECDHE
* exchanges) and converts it into a format that the PSA key
* agreement API understands.
*/
static inline int mbedtls_psa_tls_ecpoint_to_psa_ec( unsigned char const *src,
size_t srclen,
unsigned char *dst,
size_t dstlen,
size_t *olen )
{
if( srclen > dstlen )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
memcpy( dst, src, srclen );
*olen = srclen;
return( 0 );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#endif /* MBEDTLS_PSA_UTIL_H */

View File

@@ -1,823 +0,0 @@
/**
* \file psa/crypto_accel_driver.h
* \brief PSA cryptography accelerator driver module
*
* This header declares types and function signatures for cryptography
* drivers that access key material directly. This is meant for
* on-chip cryptography accelerators.
*
* This file is part of the PSA Crypto Driver Model, containing functions for
* driver developers to implement to enable hardware to be called in a
* standardized way by a PSA Cryptographic API implementation. The functions
* comprising the driver model, which driver authors implement, are not
* intended to be called by application developers.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_ACCEL_DRIVER_H
#define PSA_CRYPTO_ACCEL_DRIVER_H
#include "crypto_driver_common.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \defgroup driver_digest Hardware-Accelerated Message Digests
*
* Generation and authentication of Message Digests (aka hashes) must be done
* in parts using the following sequence:
* - `psa_drv_hash_setup_t`
* - `psa_drv_hash_update_t`
* - `psa_drv_hash_update_t`
* - ...
* - `psa_drv_hash_finish_t`
*
* If a previously started Message Digest operation needs to be terminated
* before the `psa_drv_hash_finish_t` operation is complete, it should be aborted
* by the `psa_drv_hash_abort_t`. Failure to do so may result in allocated
* resources not being freed or in other undefined behavior.
*/
/**@{*/
/** \brief The hardware-specific hash context structure
*
* The contents of this structure are implementation dependent and are
* therefore not described here
*/
typedef struct psa_drv_hash_context_s psa_drv_hash_context_t;
/** \brief The function prototype for the start operation of a hash (message
* digest) operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_setup
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying hash function
*
* \param[in,out] p_context A structure that will contain the
* hardware-specific hash context
*
* \retval PSA_SUCCESS Success.
*/
typedef psa_status_t (*psa_drv_hash_setup_t)(psa_drv_hash_context_t *p_context);
/** \brief The function prototype for the update operation of a hash (message
* digest) operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_update
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm
*
* \param[in,out] p_context A hardware-specific structure for the
* previously-established hash operation to be
* continued
* \param[in] p_input A buffer containing the message to be appended
* to the hash operation
* \param[in] input_length The size in bytes of the input message buffer
*/
typedef psa_status_t (*psa_drv_hash_update_t)(psa_drv_hash_context_t *p_context,
const uint8_t *p_input,
size_t input_length);
/** \brief The function prototype for the finish operation of a hash (message
* digest) operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_finish
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started hash operation to be
* fiinished
* \param[out] p_output A buffer where the generated digest will be
* placed
* \param[in] output_size The size in bytes of the buffer that has been
* allocated for the `p_output` buffer
* \param[out] p_output_length The number of bytes placed in `p_output` after
* success
*
* \retval PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_hash_finish_t)(psa_drv_hash_context_t *p_context,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/** \brief The function prototype for the abort operation of a hash (message
* digest) operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_abort
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm
*
* \param[in,out] p_context A hardware-specific structure for the previously
* started hash operation to be aborted
*/
typedef void (*psa_drv_hash_abort_t)(psa_drv_hash_context_t *p_context);
/**@}*/
/** \defgroup accel_mac Hardware-Accelerated Message Authentication Code
* Generation and authentication of Message Authentication Codes (MACs) using
* cryptographic accelerators can be done either as a single function call (via the
* `psa_drv_accel_mac_generate_t` or `psa_drv_accel_mac_verify_t`
* functions), or in parts using the following sequence:
* - `psa_drv_accel_mac_setup_t`
* - `psa_drv_accel_mac_update_t`
* - `psa_drv_accel_mac_update_t`
* - ...
* - `psa_drv_accel_mac_finish_t` or `psa_drv_accel_mac_finish_verify_t`
*
* If a previously started MAC operation needs to be terminated, it
* should be done so by the `psa_drv_accel_mac_abort_t`. Failure to do so may
* result in allocated resources not being freed or in other undefined
* behavior.
*
*/
/**@{*/
/** \brief The hardware-accelerator-specific MAC context structure
*
* The contents of this structure are implementation dependent and are
* therefore not described here.
*/
typedef struct psa_drv_accel_mac_context_s psa_drv_accel_mac_context_t;
/** \brief The function prototype for the setup operation of a
* hardware-accelerated MAC operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_setup
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying primitive, and `MAC_VARIANT`
* is the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A structure that will contain the
* hardware-specific MAC context
* \param[in] p_key A buffer containing the cleartext key material
* to be used in the operation
* \param[in] key_length The size in bytes of the key material
*
* \retval PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_accel_mac_setup_t)(psa_drv_accel_mac_context_t *p_context,
const uint8_t *p_key,
size_t key_length);
/** \brief The function prototype for the update operation of a
* hardware-accelerated MAC operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_update
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT`
* is the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously-established MAC operation to be
* continued
* \param[in] p_input A buffer containing the message to be appended
* to the MAC operation
* \param[in] input_length The size in bytes of the input message buffer
*/
typedef psa_status_t (*psa_drv_accel_mac_update_t)(psa_drv_accel_mac_context_t *p_context,
const uint8_t *p_input,
size_t input_length);
/** \brief The function prototype for the finish operation of a
* hardware-accelerated MAC operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_finish
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started MAC operation to be
* finished
* \param[out] p_mac A buffer where the generated MAC will be placed
* \param[in] mac_length The size in bytes of the buffer that has been
* allocated for the `p_mac` buffer
*
* \retval PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_accel_mac_finish_t)(psa_drv_accel_mac_context_t *p_context,
uint8_t *p_mac,
size_t mac_length);
/** \brief The function prototype for the finish and verify operation of a
* hardware-accelerated MAC operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_finish_verify
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started MAC operation to be
* verified and finished
* \param[in] p_mac A buffer containing the MAC that will be used
* for verification
* \param[in] mac_length The size in bytes of the data in the `p_mac`
* buffer
*
* \retval PSA_SUCCESS
* The operation completed successfully and the comparison matched
*/
typedef psa_status_t (*psa_drv_accel_mac_finish_verify_t)(psa_drv_accel_mac_context_t *p_context,
const uint8_t *p_mac,
size_t mac_length);
/** \brief The function prototype for the abort operation for a previously
* started hardware-accelerated MAC operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_abort
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started MAC operation to be
* aborted
*
*/
typedef psa_status_t (*psa_drv_accel_mac_abort_t)(psa_drv_accel_mac_context_t *p_context);
/** \brief The function prototype for the one-shot operation of a
* hardware-accelerated MAC operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in] p_input A buffer containing the data to be MACed
* \param[in] input_length The length in bytes of the `p_input` data
* \param[in] p_key A buffer containing the key material to be used
* for the MAC operation
* \param[in] key_length The length in bytes of the `p_key` data
* \param[in] alg The algorithm to be performed
* \param[out] p_mac The buffer where the resulting MAC will be placed
* upon success
* \param[in] mac_length The length in bytes of the `p_mac` buffer
*/
typedef psa_status_t (*psa_drv_accel_mac_t)(const uint8_t *p_input,
size_t input_length,
const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
uint8_t *p_mac,
size_t mac_length);
/** \brief The function prototype for the one-shot hardware-accelerated MAC
* Verify operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_verify
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in] p_input A buffer containing the data to be MACed
* \param[in] input_length The length in bytes of the `p_input` data
* \param[in] p_key A buffer containing the key material to be used
* for the MAC operation
* \param[in] key_length The length in bytes of the `p_key` data
* \param[in] alg The algorithm to be performed
* \param[in] p_mac The MAC data to be compared
* \param[in] mac_length The length in bytes of the `p_mac` buffer
*
* \retval PSA_SUCCESS
* The operation completed successfully and the comparison matched
*/
typedef psa_status_t (*psa_drv_accel_mac_verify_t)(const uint8_t *p_input,
size_t input_length,
const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
const uint8_t *p_mac,
size_t mac_length);
/**@}*/
/** \defgroup accel_cipher Hardware-Accelerated Block Ciphers
* Encryption and Decryption using hardware-acceleration in block modes other
* than ECB must be done in multiple parts, using the following flow:
* - `psa_drv_accel_ciphersetup_t`
* - `psa_drv_accel_cipher_set_iv_t` (optional depending upon block mode)
* - `psa_drv_accel_cipher_update_t`
* - `psa_drv_accel_cipher_update_t`
* - ...
* - `psa_drv_accel_cipher_finish_t`
*
* If a previously started hardware-accelerated Cipher operation needs to be
* terminated, it should be done so by the `psa_drv_accel_cipher_abort_t`.
* Failure to do so may result in allocated resources not being freed or in
* other undefined behavior.
*/
/**@{*/
/** \brief The hardware-accelerator-specific cipher context structure
*
* The contents of this structure are implementation dependent and are
* therefore not described here.
*/
typedef struct psa_drv_accel_cipher_context_s psa_drv_accel_cipher_context_t;
/** \brief The function prototype for the setup operation of
* hardware-accelerated block cipher operations.
* Functions that implement this prototype should be named in the following
* conventions:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_cipher_setup_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* For stream ciphers:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_cipher_setup_<CIPHER_NAME>
* ~~~~~~~~~~~~~
* Where `CIPHER_NAME` is the name of a stream cipher (i.e. RC4)
*
* \param[in,out] p_context A structure that will contain the
* hardware-specific cipher context
* \param[in] direction Indicates if the operation is an encrypt or a
* decrypt
* \param[in] p_key_data A buffer containing the cleartext key material
* to be used in the operation
* \param[in] key_data_size The size in bytes of the key material
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_cipher_setup_t)(psa_drv_accel_cipher_context_t *p_context,
psa_encrypt_or_decrypt_t direction,
const uint8_t *p_key_data,
size_t key_data_size);
/** \brief The function prototype for the set initialization vector operation
* of hardware-accelerated block cipher operations
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_cipher_set_iv_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A structure that contains the previously setup
* hardware-specific cipher context
* \param[in] p_iv A buffer containing the initialization vecotr
* \param[in] iv_length The size in bytes of the contents of `p_iv`
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_cipher_set_iv_t)(psa_drv_accel_cipher_context_t *p_context,
const uint8_t *p_iv,
size_t iv_length);
/** \brief The function prototype for the update operation of
* hardware-accelerated block cipher operations.
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_cipher_update_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started cipher operation
* \param[in] p_input A buffer containing the data to be
* encrypted or decrypted
* \param[in] input_size The size in bytes of the `p_input` buffer
* \param[out] p_output A caller-allocated buffer where the
* generated output will be placed
* \param[in] output_size The size in bytes of the `p_output` buffer
* \param[out] p_output_length After completion, will contain the number
* of bytes placed in the `p_output` buffer
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_cipher_update_t)(psa_drv_accel_cipher_context_t *p_context,
const uint8_t *p_input,
size_t input_size,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/** \brief The function prototype for the finish operation of
* hardware-accelerated block cipher operations.
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_cipher_finish_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started cipher operation
* \param[out] p_output A caller-allocated buffer where the generated
* output will be placed
* \param[in] output_size The size in bytes of the `p_output` buffer
* \param[out] p_output_length After completion, will contain the number of
* bytes placed in the `p_output` buffer
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_cipher_finish_t)(psa_drv_accel_cipher_context_t *p_context,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/** \brief The function prototype for the abort operation of
* hardware-accelerated block cipher operations.
*
* Functions that implement the following prototype should be named in the
* following convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_cipher_abort_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started cipher operation
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_cipher_abort_t)(psa_drv_accel_cipher_context_t *p_context);
/**@}*/
/** \defgroup accel_aead Hardware-Accelerated Authenticated Encryption with Additional Data
*
* Hardware-accelerated Authenticated Encryption with Additional Data (AEAD)
* operations must be done in one function call. While this creates a burden
* for implementers as there must be sufficient space in memory for the entire
* message, it prevents decrypted data from being made available before the
* authentication operation is complete and the data is known to be authentic.
*/
/**@{*/
/** \brief The function prototype for the hardware-accelerated authenticated
* encryption operation.
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_aead_<ALGO>_encrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the AEAD algorithm
*
* \param[in] p_key A pointer to the key material
* \param[in] key_length The size in bytes of the key material
* \param[in] alg The AEAD algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(`alg`) is true)
* \param[in] nonce Nonce or IV to use
* \param[in] nonce_length Size of the `nonce` buffer in bytes
* \param[in] additional_data Additional data that will be MACed
* but not encrypted.
* \param[in] additional_data_length Size of `additional_data` in bytes
* \param[in] plaintext Data that will be MACed and
* encrypted.
* \param[in] plaintext_length Size of `plaintext` in bytes
* \param[out] ciphertext Output buffer for the authenticated and
* encrypted data. The additional data is
* not part of this output. For algorithms
* where the encrypted data and the
* authentication tag are defined as
* separate outputs, the authentication
* tag is appended to the encrypted data.
* \param[in] ciphertext_size Size of the `ciphertext` buffer in
* bytes
* This must be at least
* #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(`alg`,
* `plaintext_length`).
* \param[out] ciphertext_length On success, the size of the output in
* the `ciphertext` buffer
*
* \retval #PSA_SUCCESS
*
*/
typedef psa_status_t (*psa_drv_accel_aead_encrypt_t)(const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
const uint8_t *nonce,
size_t nonce_length,
const uint8_t *additional_data,
size_t additional_data_length,
const uint8_t *plaintext,
size_t plaintext_length,
uint8_t *ciphertext,
size_t ciphertext_size,
size_t *ciphertext_length);
/** \brief The function prototype for the hardware-accelerated authenticated
* decryption operation.
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_aead_<ALGO>_decrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the AEAD algorithm
* \param[in] p_key A pointer to the key material
* \param[in] key_length The size in bytes of the key material
* \param[in] alg The AEAD algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(`alg`) is true)
* \param[in] nonce Nonce or IV to use
* \param[in] nonce_length Size of the `nonce` buffer in bytes
* \param[in] additional_data Additional data that has been MACed
* but not encrypted
* \param[in] additional_data_length Size of `additional_data` in bytes
* \param[in] ciphertext Data that has been MACed and
* encrypted
* For algorithms where the encrypted data
* and the authentication tag are defined
* as separate inputs, the buffer must
* contain the encrypted data followed by
* the authentication tag.
* \param[in] ciphertext_length Size of `ciphertext` in bytes
* \param[out] plaintext Output buffer for the decrypted data
* \param[in] plaintext_size Size of the `plaintext` buffer in
* bytes
* This must be at least
* #PSA_AEAD_DECRYPT_OUTPUT_SIZE(`alg`,
* `ciphertext_length`).
* \param[out] plaintext_length On success, the size of the output
* in the \b plaintext buffer
*
* \retval #PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_accel_aead_decrypt_t)(const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
const uint8_t *nonce,
size_t nonce_length,
const uint8_t *additional_data,
size_t additional_data_length,
const uint8_t *ciphertext,
size_t ciphertext_length,
uint8_t *plaintext,
size_t plaintext_size,
size_t *plaintext_length);
/**@}*/
/** \defgroup accel_asymmetric Hardware-Accelerated Asymmetric Cryptography
*
* Since the amount of data that can (or should) be encrypted or signed using
* asymmetric keys is limited by the key size, hardware-accelerated asymmetric
* key operations must be done in single function calls.
*/
/**@{*/
/**
* \brief The function prototype for the hardware-accelerated asymmetric sign
* operation.
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_asymmetric_<ALGO>_sign
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the signing algorithm
*
* This function supports any asymmetric-key output from psa_export_key() as
* the buffer in \p p_key. Refer to the documentation of \ref
* psa_export_key() for the formats.
*
* \param[in] p_key A buffer containing the private key
* material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg A signature algorithm that is compatible
* with the type of `p_key`
* \param[in] p_hash The hash or message to sign
* \param[in] hash_length Size of the `p_hash` buffer in bytes
* \param[out] p_signature Buffer where the signature is to be written
* \param[in] signature_size Size of the `p_signature` buffer in bytes
* \param[out] p_signature_length On success, the number of bytes
* that make up the returned signature value
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_asymmetric_sign_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
psa_key_type_t key_type,
const uint8_t *p_hash,
size_t hash_length,
uint8_t *p_signature,
size_t signature_size,
size_t *p_signature_length);
/**
* \brief The function prototype for the hardware-accelerated signature verify
* operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_asymmetric_<ALGO>_verify
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the signing algorithm
*
* This function supports any output from \ref psa_export_public_key() as the
* buffer in \p p_key. Refer to the documentation of \ref
* psa_export_public_key() for the format of public keys and to the
* documentation of \ref psa_export_key() for the format for other key types.
*
* \param[in] p_key A buffer containing the public key material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg A signature algorithm that is compatible with
* the type of `key`
* \param[in] p_hash The hash or message whose signature is to be
* verified
* \param[in] hash_length Size of the `p_hash` buffer in bytes
* \param[in] p_signature Buffer containing the signature to verify
* \param[in] signature_length Size of the `p_signature` buffer in bytes
*
* \retval PSA_SUCCESS
* The signature is valid.
*/
typedef psa_status_t (*psa_drv_accel_asymmetric_verify_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
psa_key_type_t key_type,
const uint8_t *p_hash,
size_t hash_length,
const uint8_t *p_signature,
size_t signature_length);
/**
* \brief The function prototype for the hardware-accelerated asymmetric
* encrypt operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_asymmetric_<ALGO>_encrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the encryption algorithm
*
* This function supports any output from \ref psa_export_public_key() as the
* buffer in \p p_key. Refer to the documentation of \ref
* psa_export_public_key() for the format of public keys and to the
* documentation of \ref psa_export_key() for the format for other key types.
*
* \param[in] p_key A buffer containing the public key material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg An asymmetric encryption algorithm that is
* compatible with the type of `key`
* \param[in] p_input The message to encrypt
* \param[in] input_length Size of the `p_input` buffer in bytes
* \param[in] p_salt A salt or label, if supported by the
* encryption algorithm
* If the algorithm does not support a
* salt, pass `NULL`
* If the algorithm supports an optional
* salt and you do not want to pass a salt,
* pass `NULL`.
* For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
* supported.
* \param[in] salt_length Size of the `p_salt` buffer in bytes
* If `p_salt` is `NULL`, pass 0.
* \param[out] p_output Buffer where the encrypted message is to
* be written
* \param[in] output_size Size of the `p_output` buffer in bytes
* \param[out] p_output_length On success, the number of bytes
* that make up the returned output
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_asymmetric_encrypt_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
psa_key_type_t key_type,
const uint8_t *p_input,
size_t input_length,
const uint8_t *p_salt,
size_t salt_length,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/**
* \brief The function prototype for the hardware=acce;erated asymmetric
* decrypt operation
*
* Functions that implement this prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_accel_asymmetric_<ALGO>_decrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the encryption algorithm
*
* This function supports any asymmetric-key output from psa_export_key() as
* the buffer in \p p_key. Refer to the documentation of \ref
* psa_export_key() for the formats.
*
* \param[in] p_key A buffer containing the private key material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg An asymmetric encryption algorithm that is
* compatible with the type of `key`
* \param[in] p_input The message to decrypt
* \param[in] input_length Size of the `p_input` buffer in bytes
* \param[in] p_salt A salt or label, if supported by the
* encryption algorithm
* If the algorithm does not support a
* salt, pass `NULL`.
* If the algorithm supports an optional
* salt and you do not want to pass a salt,
* pass `NULL`.
* For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
* supported
* \param[in] salt_length Size of the `p_salt` buffer in bytes
* If `p_salt` is `NULL`, pass 0
* \param[out] p_output Buffer where the decrypted message is to
* be written
* \param[in] output_size Size of the `p_output` buffer in bytes
* \param[out] p_output_length On success, the number of bytes
* that make up the returned output
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_accel_asymmetric_decrypt_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
psa_key_type_t key_type,
const uint8_t *p_input,
size_t input_length,
const uint8_t *p_salt,
size_t salt_length,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* PSA_CRYPTO_ACCEL_DRIVER_H */

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@@ -1,230 +0,0 @@
/**
* \file psa/crypto_compat.h
*
* \brief PSA cryptography module: Backward compatibility aliases
*
* This header declares alternative names for macro and functions.
* New application code should not use these names.
* These names may be removed in a future version of Mbed Crypto.
*
* \note This file may not be included directly. Applications must
* include psa/crypto.h.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_COMPAT_H
#define PSA_CRYPTO_COMPAT_H
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
/*
* Mechanism for declaring deprecated values
*/
#if defined(MBEDTLS_DEPRECATED_WARNING) && !defined(MBEDTLS_PSA_DEPRECATED)
#define MBEDTLS_PSA_DEPRECATED __attribute__((deprecated))
#else
#define MBEDTLS_PSA_DEPRECATED
#endif
typedef MBEDTLS_PSA_DEPRECATED size_t mbedtls_deprecated_size_t;
typedef MBEDTLS_PSA_DEPRECATED psa_status_t mbedtls_deprecated_psa_status_t;
typedef MBEDTLS_PSA_DEPRECATED psa_key_usage_t mbedtls_deprecated_psa_key_usage_t;
typedef MBEDTLS_PSA_DEPRECATED psa_ecc_family_t mbedtls_deprecated_psa_ecc_family_t;
typedef MBEDTLS_PSA_DEPRECATED psa_dh_family_t mbedtls_deprecated_psa_dh_family_t;
typedef MBEDTLS_PSA_DEPRECATED psa_ecc_family_t psa_ecc_curve_t;
typedef MBEDTLS_PSA_DEPRECATED psa_dh_family_t psa_dh_group_t;
#define PSA_KEY_TYPE_GET_CURVE PSA_KEY_TYPE_ECC_GET_FAMILY
#define PSA_KEY_TYPE_GET_GROUP PSA_KEY_TYPE_DH_GET_FAMILY
#define MBEDTLS_DEPRECATED_CONSTANT( type, value ) \
( (mbedtls_deprecated_##type) ( value ) )
/*
* Deprecated PSA Crypto error code definitions (PSA Crypto API <= 1.0 beta2)
*/
#define PSA_ERROR_UNKNOWN_ERROR \
MBEDTLS_DEPRECATED_CONSTANT( psa_status_t, PSA_ERROR_GENERIC_ERROR )
#define PSA_ERROR_OCCUPIED_SLOT \
MBEDTLS_DEPRECATED_CONSTANT( psa_status_t, PSA_ERROR_ALREADY_EXISTS )
#define PSA_ERROR_EMPTY_SLOT \
MBEDTLS_DEPRECATED_CONSTANT( psa_status_t, PSA_ERROR_DOES_NOT_EXIST )
#define PSA_ERROR_INSUFFICIENT_CAPACITY \
MBEDTLS_DEPRECATED_CONSTANT( psa_status_t, PSA_ERROR_INSUFFICIENT_DATA )
#define PSA_ERROR_TAMPERING_DETECTED \
MBEDTLS_DEPRECATED_CONSTANT( psa_status_t, PSA_ERROR_CORRUPTION_DETECTED )
/*
* Deprecated PSA Crypto numerical encodings (PSA Crypto API <= 1.0 beta3)
*/
#define PSA_KEY_USAGE_SIGN \
MBEDTLS_DEPRECATED_CONSTANT( psa_key_usage_t, PSA_KEY_USAGE_SIGN_HASH )
#define PSA_KEY_USAGE_VERIFY \
MBEDTLS_DEPRECATED_CONSTANT( psa_key_usage_t, PSA_KEY_USAGE_VERIFY_HASH )
/*
* Deprecated PSA Crypto size calculation macros (PSA Crypto API <= 1.0 beta3)
*/
#define PSA_ASYMMETRIC_SIGNATURE_MAX_SIZE \
MBEDTLS_DEPRECATED_CONSTANT( size_t, PSA_SIGNATURE_MAX_SIZE )
#define PSA_ASYMMETRIC_SIGN_OUTPUT_SIZE( key_type, key_bits, alg ) \
MBEDTLS_DEPRECATED_CONSTANT( size_t, PSA_SIGN_OUTPUT_SIZE( key_type, key_bits, alg ) )
/*
* Deprecated PSA Crypto function names (PSA Crypto API <= 1.0 beta3)
*/
MBEDTLS_PSA_DEPRECATED static inline psa_status_t psa_asymmetric_sign( psa_key_handle_t key,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
uint8_t *signature,
size_t signature_size,
size_t *signature_length )
{
return psa_sign_hash( key, alg, hash, hash_length, signature, signature_size, signature_length );
}
MBEDTLS_PSA_DEPRECATED static inline psa_status_t psa_asymmetric_verify( psa_key_handle_t key,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
const uint8_t *signature,
size_t signature_length )
{
return psa_verify_hash( key, alg, hash, hash_length, signature, signature_length );
}
#endif /* MBEDTLS_DEPRECATED_REMOVED */
/*
* Size-specific elliptic curve families.
*/
#define PSA_ECC_CURVE_SECP160K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_K1 )
#define PSA_ECC_CURVE_SECP192K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_K1 )
#define PSA_ECC_CURVE_SECP224K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_K1 )
#define PSA_ECC_CURVE_SECP256K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_K1 )
#define PSA_ECC_CURVE_SECP160R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP192R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP224R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP256R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP384R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP521R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP160R2 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R2 )
#define PSA_ECC_CURVE_SECT163K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT233K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT239K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT283K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT409K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT571K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT163R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT193R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT233R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT283R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT409R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT571R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT163R2 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R2 )
#define PSA_ECC_CURVE_SECT193R2 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R2 )
#define PSA_ECC_CURVE_BRAINPOOL_P256R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_BRAINPOOL_P_R1 )
#define PSA_ECC_CURVE_BRAINPOOL_P384R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_BRAINPOOL_P_R1 )
#define PSA_ECC_CURVE_BRAINPOOL_P512R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_BRAINPOOL_P_R1 )
#define PSA_ECC_CURVE_CURVE25519 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_MONTGOMERY )
#define PSA_ECC_CURVE_CURVE448 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_MONTGOMERY )
/*
* Curves that changed name due to PSA specification.
*/
#define PSA_ECC_CURVE_SECP_K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_K1 )
#define PSA_ECC_CURVE_SECP_R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R1 )
#define PSA_ECC_CURVE_SECP_R2 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECP_R2 )
#define PSA_ECC_CURVE_SECT_K1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_K1 )
#define PSA_ECC_CURVE_SECT_R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R1 )
#define PSA_ECC_CURVE_SECT_R2 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_SECT_R2 )
#define PSA_ECC_CURVE_BRAINPOOL_P_R1 \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_BRAINPOOL_P_R1 )
#define PSA_ECC_CURVE_MONTGOMERY \
MBEDTLS_DEPRECATED_CONSTANT( psa_ecc_family_t, PSA_ECC_FAMILY_MONTGOMERY )
/*
* Finite-field Diffie-Hellman families.
*/
#define PSA_DH_GROUP_FFDHE2048 \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_RFC7919 )
#define PSA_DH_GROUP_FFDHE3072 \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_RFC7919 )
#define PSA_DH_GROUP_FFDHE4096 \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_RFC7919 )
#define PSA_DH_GROUP_FFDHE6144 \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_RFC7919 )
#define PSA_DH_GROUP_FFDHE8192 \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_RFC7919 )
/*
* Diffie-Hellman families that changed name due to PSA specification.
*/
#define PSA_DH_GROUP_RFC7919 \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_RFC7919 )
#define PSA_DH_GROUP_CUSTOM \
MBEDTLS_DEPRECATED_CONSTANT( psa_dh_family_t, PSA_DH_FAMILY_CUSTOM )
#ifdef __cplusplus
}
#endif
#endif /* PSA_CRYPTO_COMPAT_H */

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@@ -1,108 +0,0 @@
/**
* \file psa/crypto_entropy_driver.h
* \brief PSA entropy source driver module
*
* This header declares types and function signatures for entropy sources.
*
* This file is part of the PSA Crypto Driver Model, containing functions for
* driver developers to implement to enable hardware to be called in a
* standardized way by a PSA Cryptographic API implementation. The functions
* comprising the driver model, which driver authors implement, are not
* intended to be called by application developers.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_ENTROPY_DRIVER_H
#define PSA_CRYPTO_ENTROPY_DRIVER_H
#include "crypto_driver_common.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \defgroup driver_rng Entropy Generation
*/
/**@{*/
/** \brief Initialize an entropy driver
*
*
* \param[in,out] p_context A hardware-specific structure
* containing any context information for
* the implementation
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_entropy_init_t)(void *p_context);
/** \brief Get a specified number of bits from the entropy source
*
* It retrives `buffer_size` bytes of data from the entropy source. The entropy
* source will always fill the provided buffer to its full size, however, most
* entropy sources have biases, and the actual amount of entropy contained in
* the buffer will be less than the number of bytes.
* The driver will return the actual number of bytes of entropy placed in the
* buffer in `p_received_entropy_bytes`.
* A PSA Crypto API implementation will likely feed the output of this function
* into a Digital Random Bit Generator (DRBG), and typically has a minimum
* amount of entropy that it needs.
* To accomplish this, the PSA Crypto implementation should be designed to call
* this function multiple times until it has received the required amount of
* entropy from the entropy source.
*
* \param[in,out] p_context A hardware-specific structure
* containing any context information
* for the implementation
* \param[out] p_buffer A caller-allocated buffer for the
* retrieved entropy to be placed in
* \param[in] buffer_size The allocated size of `p_buffer`
* \param[out] p_received_entropy_bits The amount of entropy (in bits)
* actually provided in `p_buffer`
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_entropy_get_bits_t)(void *p_context,
uint8_t *p_buffer,
uint32_t buffer_size,
uint32_t *p_received_entropy_bits);
/**
* \brief A struct containing all of the function pointers needed to interface
* to an entropy source
*
* PSA Crypto API implementations should populate instances of the table as
* appropriate upon startup.
*
* If one of the functions is not implemented, it should be set to NULL.
*/
typedef struct {
/** The driver-specific size of the entropy context */
const size_t context_size;
/** Function that performs initialization for the entropy source */
psa_drv_entropy_init_t p_init;
/** Function that performs the get_bits operation for the entropy source */
psa_drv_entropy_get_bits_t p_get_bits;
} psa_drv_entropy_t;
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* PSA_CRYPTO_ENTROPY_DRIVER_H */

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@@ -1,100 +0,0 @@
/**
* \file psa/crypto_platform.h
*
* \brief PSA cryptography module: Mbed TLS platform definitions
*
* \note This file may not be included directly. Applications must
* include psa/crypto.h.
*
* This file contains platform-dependent type definitions.
*
* In implementations with isolation between the application and the
* cryptography module, implementers should take care to ensure that
* the definitions that are exposed to applications match what the
* module implements.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_PLATFORM_H
#define PSA_CRYPTO_PLATFORM_H
/* Include the Mbed TLS configuration file, the way Mbed TLS does it
* in each of its header files. */
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
/* PSA requires several types which C99 provides in stdint.h. */
#include <stdint.h>
/* Integral type representing a key handle. */
typedef uint16_t psa_key_handle_t;
/* This implementation distinguishes *application key identifiers*, which
* are the key identifiers specified by the application, from
* *key file identifiers*, which are the key identifiers that the library
* sees internally. The two types can be different if there is a remote
* call layer between the application and the library which supports
* multiple client applications that do not have access to each others'
* keys. The point of having different types is that the key file
* identifier may encode not only the key identifier specified by the
* application, but also the the identity of the application.
*
* Note that this is an internal concept of the library and the remote
* call layer. The application itself never sees anything other than
* #psa_app_key_id_t with its standard definition.
*/
/* The application key identifier is always what the application sees as
* #psa_key_id_t. */
typedef uint32_t psa_app_key_id_t;
#if defined(MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER)
#if defined(PSA_CRYPTO_SECURE)
/* Building for the PSA Crypto service on a PSA platform. */
/* A key owner is a PSA partition identifier. */
typedef int32_t psa_key_owner_id_t;
#endif
typedef struct
{
uint32_t key_id;
psa_key_owner_id_t owner;
} psa_key_file_id_t;
#define PSA_KEY_FILE_GET_KEY_ID( file_id ) ( ( file_id ).key_id )
/* Since crypto.h is used as part of the PSA Cryptography API specification,
* it must use standard types for things like the argument of psa_open_key().
* If it wasn't for that constraint, psa_open_key() would take a
* `psa_key_file_id_t` argument. As a workaround, make `psa_key_id_t` an
* alias for `psa_key_file_id_t` when building for a multi-client service. */
typedef psa_key_file_id_t psa_key_id_t;
#define PSA_KEY_ID_INIT {0, 0}
#else /* !MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER */
/* By default, a key file identifier is just the application key identifier. */
typedef psa_app_key_id_t psa_key_file_id_t;
#define PSA_KEY_FILE_GET_KEY_ID( id ) ( id )
#endif /* !MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER */
#endif /* PSA_CRYPTO_PLATFORM_H */

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@@ -1,660 +0,0 @@
/**
* \file psa/crypto_sizes.h
*
* \brief PSA cryptography module: Mbed TLS buffer size macros
*
* \note This file may not be included directly. Applications must
* include psa/crypto.h.
*
* This file contains the definitions of macros that are useful to
* compute buffer sizes. The signatures and semantics of these macros
* are standardized, but the definitions are not, because they depend on
* the available algorithms and, in some cases, on permitted tolerances
* on buffer sizes.
*
* In implementations with isolation between the application and the
* cryptography module, implementers should take care to ensure that
* the definitions that are exposed to applications match what the
* module implements.
*
* Macros that compute sizes whose values do not depend on the
* implementation are in crypto.h.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_SIZES_H
#define PSA_CRYPTO_SIZES_H
/* Include the Mbed TLS configuration file, the way Mbed TLS does it
* in each of its header files. */
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#define PSA_BITS_TO_BYTES(bits) (((bits) + 7) / 8)
#define PSA_BYTES_TO_BITS(bytes) ((bytes) * 8)
#define PSA_ROUND_UP_TO_MULTIPLE(block_size, length) \
(((length) + (block_size) - 1) / (block_size) * (block_size))
/** The size of the output of psa_hash_finish(), in bytes.
*
* This is also the hash size that psa_hash_verify() expects.
*
* \param alg A hash algorithm (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_HASH(\p alg) is true), or an HMAC algorithm
* (#PSA_ALG_HMAC(\c hash_alg) where \c hash_alg is a
* hash algorithm).
*
* \return The hash size for the specified hash algorithm.
* If the hash algorithm is not recognized, return 0.
* An implementation may return either 0 or the correct size
* for a hash algorithm that it recognizes, but does not support.
*/
#define PSA_HASH_SIZE(alg) \
( \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD2 ? 16 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD4 ? 16 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 16 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 20 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 20 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 28 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 32 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 48 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 28 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 32 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 28 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 32 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 48 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 64 : \
0)
/** \def PSA_HASH_MAX_SIZE
*
* Maximum size of a hash.
*
* This macro must expand to a compile-time constant integer. This value
* should be the maximum size of a hash supported by the implementation,
* in bytes, and must be no smaller than this maximum.
*/
/* Note: for HMAC-SHA-3, the block size is 144 bytes for HMAC-SHA3-226,
* 136 bytes for HMAC-SHA3-256, 104 bytes for SHA3-384, 72 bytes for
* HMAC-SHA3-512. */
#if defined(MBEDTLS_SHA512_C)
#define PSA_HASH_MAX_SIZE 64
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 128
#else
#define PSA_HASH_MAX_SIZE 32
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64
#endif
/** \def PSA_MAC_MAX_SIZE
*
* Maximum size of a MAC.
*
* This macro must expand to a compile-time constant integer. This value
* should be the maximum size of a MAC supported by the implementation,
* in bytes, and must be no smaller than this maximum.
*/
/* All non-HMAC MACs have a maximum size that's smaller than the
* minimum possible value of PSA_HASH_MAX_SIZE in this implementation. */
/* Note that the encoding of truncated MAC algorithms limits this value
* to 64 bytes.
*/
#define PSA_MAC_MAX_SIZE PSA_HASH_MAX_SIZE
/** The tag size for an AEAD algorithm, in bytes.
*
* \param alg An AEAD algorithm
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(\p alg) is true).
*
* \return The tag size for the specified algorithm.
* If the AEAD algorithm does not have an identified
* tag that can be distinguished from the rest of
* the ciphertext, return 0.
* If the AEAD algorithm is not recognized, return 0.
* An implementation may return either 0 or a
* correct size for an AEAD algorithm that it
* recognizes, but does not support.
*/
#define PSA_AEAD_TAG_LENGTH(alg) \
(PSA_ALG_IS_AEAD(alg) ? \
(((alg) & PSA_ALG_AEAD_TAG_LENGTH_MASK) >> PSA_AEAD_TAG_LENGTH_OFFSET) : \
0)
/* The maximum size of an RSA key on this implementation, in bits.
* This is a vendor-specific macro.
*
* Mbed TLS does not set a hard limit on the size of RSA keys: any key
* whose parameters fit in a bignum is accepted. However large keys can
* induce a large memory usage and long computation times. Unlike other
* auxiliary macros in this file and in crypto.h, which reflect how the
* library is configured, this macro defines how the library is
* configured. This implementation refuses to import or generate an
* RSA key whose size is larger than the value defined here.
*
* Note that an implementation may set different size limits for different
* operations, and does not need to accept all key sizes up to the limit. */
#define PSA_VENDOR_RSA_MAX_KEY_BITS 4096
/* The maximum size of an ECC key on this implementation, in bits.
* This is a vendor-specific macro. */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 521
#elif defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 512
#elif defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 448
#elif defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 384
#elif defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 384
#elif defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256
#elif defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256
#elif defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 256
#elif defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 255
#elif defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 224
#elif defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 224
#elif defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 192
#elif defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 192
#else
#define PSA_VENDOR_ECC_MAX_CURVE_BITS 0
#endif
/** \def PSA_ALG_TLS12_PSK_TO_MS_MAX_PSK_LEN
*
* This macro returns the maximum length of the PSK supported
* by the TLS-1.2 PSK-to-MS key derivation.
*
* Quoting RFC 4279, Sect 5.3:
* TLS implementations supporting these ciphersuites MUST support
* arbitrary PSK identities up to 128 octets in length, and arbitrary
* PSKs up to 64 octets in length. Supporting longer identities and
* keys is RECOMMENDED.
*
* Therefore, no implementation should define a value smaller than 64
* for #PSA_ALG_TLS12_PSK_TO_MS_MAX_PSK_LEN.
*/
#define PSA_ALG_TLS12_PSK_TO_MS_MAX_PSK_LEN 128
/** The maximum size of a block cipher supported by the implementation. */
#define PSA_MAX_BLOCK_CIPHER_BLOCK_SIZE 16
/** The size of the output of psa_mac_sign_finish(), in bytes.
*
* This is also the MAC size that psa_mac_verify_finish() expects.
*
* \param key_type The type of the MAC key.
* \param key_bits The size of the MAC key in bits.
* \param alg A MAC algorithm (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_MAC(\p alg) is true).
*
* \return The MAC size for the specified algorithm with
* the specified key parameters.
* \return 0 if the MAC algorithm is not recognized.
* \return Either 0 or the correct size for a MAC algorithm that
* the implementation recognizes, but does not support.
* \return Unspecified if the key parameters are not consistent
* with the algorithm.
*/
#define PSA_MAC_FINAL_SIZE(key_type, key_bits, alg) \
((alg) & PSA_ALG_MAC_TRUNCATION_MASK ? PSA_MAC_TRUNCATED_LENGTH(alg) : \
PSA_ALG_IS_HMAC(alg) ? PSA_HASH_SIZE(PSA_ALG_HMAC_GET_HASH(alg)) : \
PSA_ALG_IS_BLOCK_CIPHER_MAC(alg) ? PSA_BLOCK_CIPHER_BLOCK_SIZE(key_type) : \
((void)(key_type), (void)(key_bits), 0))
/** The maximum size of the output of psa_aead_encrypt(), in bytes.
*
* If the size of the ciphertext buffer is at least this large, it is
* guaranteed that psa_aead_encrypt() will not fail due to an
* insufficient buffer size. Depending on the algorithm, the actual size of
* the ciphertext may be smaller.
*
* \param alg An AEAD algorithm
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(\p alg) is true).
* \param plaintext_length Size of the plaintext in bytes.
*
* \return The AEAD ciphertext size for the specified
* algorithm.
* If the AEAD algorithm is not recognized, return 0.
* An implementation may return either 0 or a
* correct size for an AEAD algorithm that it
* recognizes, but does not support.
*/
#define PSA_AEAD_ENCRYPT_OUTPUT_SIZE(alg, plaintext_length) \
(PSA_AEAD_TAG_LENGTH(alg) != 0 ? \
(plaintext_length) + PSA_AEAD_TAG_LENGTH(alg) : \
0)
/** The maximum size of the output of psa_aead_decrypt(), in bytes.
*
* If the size of the plaintext buffer is at least this large, it is
* guaranteed that psa_aead_decrypt() will not fail due to an
* insufficient buffer size. Depending on the algorithm, the actual size of
* the plaintext may be smaller.
*
* \param alg An AEAD algorithm
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(\p alg) is true).
* \param ciphertext_length Size of the plaintext in bytes.
*
* \return The AEAD ciphertext size for the specified
* algorithm.
* If the AEAD algorithm is not recognized, return 0.
* An implementation may return either 0 or a
* correct size for an AEAD algorithm that it
* recognizes, but does not support.
*/
#define PSA_AEAD_DECRYPT_OUTPUT_SIZE(alg, ciphertext_length) \
(PSA_AEAD_TAG_LENGTH(alg) != 0 ? \
(ciphertext_length) - PSA_AEAD_TAG_LENGTH(alg) : \
0)
/** A sufficient output buffer size for psa_aead_update().
*
* If the size of the output buffer is at least this large, it is
* guaranteed that psa_aead_update() will not fail due to an
* insufficient buffer size. The actual size of the output may be smaller
* in any given call.
*
* \param alg An AEAD algorithm
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(\p alg) is true).
* \param input_length Size of the input in bytes.
*
* \return A sufficient output buffer size for the specified
* algorithm.
* If the AEAD algorithm is not recognized, return 0.
* An implementation may return either 0 or a
* correct size for an AEAD algorithm that it
* recognizes, but does not support.
*/
/* For all the AEAD modes defined in this specification, it is possible
* to emit output without delay. However, hardware may not always be
* capable of this. So for modes based on a block cipher, allow the
* implementation to delay the output until it has a full block. */
#define PSA_AEAD_UPDATE_OUTPUT_SIZE(alg, input_length) \
(PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \
PSA_ROUND_UP_TO_MULTIPLE(PSA_MAX_BLOCK_CIPHER_BLOCK_SIZE, (input_length)) : \
(input_length))
/** A sufficient ciphertext buffer size for psa_aead_finish().
*
* If the size of the ciphertext buffer is at least this large, it is
* guaranteed that psa_aead_finish() will not fail due to an
* insufficient ciphertext buffer size. The actual size of the output may
* be smaller in any given call.
*
* \param alg An AEAD algorithm
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(\p alg) is true).
*
* \return A sufficient ciphertext buffer size for the
* specified algorithm.
* If the AEAD algorithm is not recognized, return 0.
* An implementation may return either 0 or a
* correct size for an AEAD algorithm that it
* recognizes, but does not support.
*/
#define PSA_AEAD_FINISH_OUTPUT_SIZE(alg) \
(PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \
PSA_MAX_BLOCK_CIPHER_BLOCK_SIZE : \
0)
/** A sufficient plaintext buffer size for psa_aead_verify().
*
* If the size of the plaintext buffer is at least this large, it is
* guaranteed that psa_aead_verify() will not fail due to an
* insufficient plaintext buffer size. The actual size of the output may
* be smaller in any given call.
*
* \param alg An AEAD algorithm
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(\p alg) is true).
*
* \return A sufficient plaintext buffer size for the
* specified algorithm.
* If the AEAD algorithm is not recognized, return 0.
* An implementation may return either 0 or a
* correct size for an AEAD algorithm that it
* recognizes, but does not support.
*/
#define PSA_AEAD_VERIFY_OUTPUT_SIZE(alg) \
(PSA_ALG_IS_AEAD_ON_BLOCK_CIPHER(alg) ? \
PSA_MAX_BLOCK_CIPHER_BLOCK_SIZE : \
0)
#define PSA_RSA_MINIMUM_PADDING_SIZE(alg) \
(PSA_ALG_IS_RSA_OAEP(alg) ? \
2 * PSA_HASH_SIZE(PSA_ALG_RSA_OAEP_GET_HASH(alg)) + 1 : \
11 /*PKCS#1v1.5*/)
/**
* \brief ECDSA signature size for a given curve bit size
*
* \param curve_bits Curve size in bits.
* \return Signature size in bytes.
*
* \note This macro returns a compile-time constant if its argument is one.
*/
#define PSA_ECDSA_SIGNATURE_SIZE(curve_bits) \
(PSA_BITS_TO_BYTES(curve_bits) * 2)
/** Sufficient signature buffer size for psa_sign_hash().
*
* This macro returns a sufficient buffer size for a signature using a key
* of the specified type and size, with the specified algorithm.
* Note that the actual size of the signature may be smaller
* (some algorithms produce a variable-size signature).
*
* \warning This function may call its arguments multiple times or
* zero times, so you should not pass arguments that contain
* side effects.
*
* \param key_type An asymmetric key type (this may indifferently be a
* key pair type or a public key type).
* \param key_bits The size of the key in bits.
* \param alg The signature algorithm.
*
* \return If the parameters are valid and supported, return
* a buffer size in bytes that guarantees that
* psa_sign_hash() will not fail with
* #PSA_ERROR_BUFFER_TOO_SMALL.
* If the parameters are a valid combination that is not supported
* by the implementation, this macro shall return either a
* sensible size or 0.
* If the parameters are not valid, the
* return value is unspecified.
*/
#define PSA_SIGN_OUTPUT_SIZE(key_type, key_bits, alg) \
(PSA_KEY_TYPE_IS_RSA(key_type) ? ((void)alg, PSA_BITS_TO_BYTES(key_bits)) : \
PSA_KEY_TYPE_IS_ECC(key_type) ? PSA_ECDSA_SIGNATURE_SIZE(key_bits) : \
((void)alg, 0))
#define PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE \
PSA_ECDSA_SIGNATURE_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS)
/** \def PSA_SIGNATURE_MAX_SIZE
*
* Maximum size of an asymmetric signature.
*
* This macro must expand to a compile-time constant integer. This value
* should be the maximum size of a signature supported by the implementation,
* in bytes, and must be no smaller than this maximum.
*/
#define PSA_SIGNATURE_MAX_SIZE \
(PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) > PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE ? \
PSA_BITS_TO_BYTES(PSA_VENDOR_RSA_MAX_KEY_BITS) : \
PSA_VENDOR_ECDSA_SIGNATURE_MAX_SIZE)
/** Sufficient output buffer size for psa_asymmetric_encrypt().
*
* This macro returns a sufficient buffer size for a ciphertext produced using
* a key of the specified type and size, with the specified algorithm.
* Note that the actual size of the ciphertext may be smaller, depending
* on the algorithm.
*
* \warning This function may call its arguments multiple times or
* zero times, so you should not pass arguments that contain
* side effects.
*
* \param key_type An asymmetric key type (this may indifferently be a
* key pair type or a public key type).
* \param key_bits The size of the key in bits.
* \param alg The asymmetric encryption algorithm.
*
* \return If the parameters are valid and supported, return
* a buffer size in bytes that guarantees that
* psa_asymmetric_encrypt() will not fail with
* #PSA_ERROR_BUFFER_TOO_SMALL.
* If the parameters are a valid combination that is not supported
* by the implementation, this macro shall return either a
* sensible size or 0.
* If the parameters are not valid, the
* return value is unspecified.
*/
#define PSA_ASYMMETRIC_ENCRYPT_OUTPUT_SIZE(key_type, key_bits, alg) \
(PSA_KEY_TYPE_IS_RSA(key_type) ? \
((void)alg, PSA_BITS_TO_BYTES(key_bits)) : \
0)
/** Sufficient output buffer size for psa_asymmetric_decrypt().
*
* This macro returns a sufficient buffer size for a plaintext produced using
* a key of the specified type and size, with the specified algorithm.
* Note that the actual size of the plaintext may be smaller, depending
* on the algorithm.
*
* \warning This function may call its arguments multiple times or
* zero times, so you should not pass arguments that contain
* side effects.
*
* \param key_type An asymmetric key type (this may indifferently be a
* key pair type or a public key type).
* \param key_bits The size of the key in bits.
* \param alg The asymmetric encryption algorithm.
*
* \return If the parameters are valid and supported, return
* a buffer size in bytes that guarantees that
* psa_asymmetric_decrypt() will not fail with
* #PSA_ERROR_BUFFER_TOO_SMALL.
* If the parameters are a valid combination that is not supported
* by the implementation, this macro shall return either a
* sensible size or 0.
* If the parameters are not valid, the
* return value is unspecified.
*/
#define PSA_ASYMMETRIC_DECRYPT_OUTPUT_SIZE(key_type, key_bits, alg) \
(PSA_KEY_TYPE_IS_RSA(key_type) ? \
PSA_BITS_TO_BYTES(key_bits) - PSA_RSA_MINIMUM_PADDING_SIZE(alg) : \
0)
/* Maximum size of the ASN.1 encoding of an INTEGER with the specified
* number of bits.
*
* This definition assumes that bits <= 2^19 - 9 so that the length field
* is at most 3 bytes. The length of the encoding is the length of the
* bit string padded to a whole number of bytes plus:
* - 1 type byte;
* - 1 to 3 length bytes;
* - 0 to 1 bytes of leading 0 due to the sign bit.
*/
#define PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(bits) \
((bits) / 8 + 5)
/* Maximum size of the export encoding of an RSA public key.
* Assumes that the public exponent is less than 2^32.
*
* RSAPublicKey ::= SEQUENCE {
* modulus INTEGER, -- n
* publicExponent INTEGER } -- e
*
* - 4 bytes of SEQUENCE overhead;
* - n : INTEGER;
* - 7 bytes for the public exponent.
*/
#define PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) \
(PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) + 11)
/* Maximum size of the export encoding of an RSA key pair.
* Assumes thatthe public exponent is less than 2^32 and that the size
* difference between the two primes is at most 1 bit.
*
* RSAPrivateKey ::= SEQUENCE {
* version Version, -- 0
* modulus INTEGER, -- N-bit
* publicExponent INTEGER, -- 32-bit
* privateExponent INTEGER, -- N-bit
* prime1 INTEGER, -- N/2-bit
* prime2 INTEGER, -- N/2-bit
* exponent1 INTEGER, -- N/2-bit
* exponent2 INTEGER, -- N/2-bit
* coefficient INTEGER, -- N/2-bit
* }
*
* - 4 bytes of SEQUENCE overhead;
* - 3 bytes of version;
* - 7 half-size INTEGERs plus 2 full-size INTEGERs,
* overapproximated as 9 half-size INTEGERS;
* - 7 bytes for the public exponent.
*/
#define PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(key_bits) \
(9 * PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE((key_bits) / 2 + 1) + 14)
/* Maximum size of the export encoding of a DSA public key.
*
* SubjectPublicKeyInfo ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* subjectPublicKey BIT STRING } -- contains DSAPublicKey
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm OBJECT IDENTIFIER,
* parameters Dss-Parms } -- SEQUENCE of 3 INTEGERs
* DSAPublicKey ::= INTEGER -- public key, Y
*
* - 3 * 4 bytes of SEQUENCE overhead;
* - 1 + 1 + 7 bytes of algorithm (DSA OID);
* - 4 bytes of BIT STRING overhead;
* - 3 full-size INTEGERs (p, g, y);
* - 1 + 1 + 32 bytes for 1 sub-size INTEGER (q <= 256 bits).
*/
#define PSA_KEY_EXPORT_DSA_PUBLIC_KEY_MAX_SIZE(key_bits) \
(PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) * 3 + 59)
/* Maximum size of the export encoding of a DSA key pair.
*
* DSAPrivateKey ::= SEQUENCE {
* version Version, -- 0
* prime INTEGER, -- p
* subprime INTEGER, -- q
* generator INTEGER, -- g
* public INTEGER, -- y
* private INTEGER, -- x
* }
*
* - 4 bytes of SEQUENCE overhead;
* - 3 bytes of version;
* - 3 full-size INTEGERs (p, g, y);
* - 2 * (1 + 1 + 32) bytes for 2 sub-size INTEGERs (q, x <= 256 bits).
*/
#define PSA_KEY_EXPORT_DSA_KEY_PAIR_MAX_SIZE(key_bits) \
(PSA_KEY_EXPORT_ASN1_INTEGER_MAX_SIZE(key_bits) * 3 + 75)
/* Maximum size of the export encoding of an ECC public key.
*
* The representation of an ECC public key is:
* - The byte 0x04;
* - `x_P` as a `ceiling(m/8)`-byte string, big-endian;
* - `y_P` as a `ceiling(m/8)`-byte string, big-endian;
* - where m is the bit size associated with the curve.
*
* - 1 byte + 2 * point size.
*/
#define PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) \
(2 * PSA_BITS_TO_BYTES(key_bits) + 1)
/* Maximum size of the export encoding of an ECC key pair.
*
* An ECC key pair is represented by the secret value.
*/
#define PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(key_bits) \
(PSA_BITS_TO_BYTES(key_bits))
/** Sufficient output buffer size for psa_export_key() or psa_export_public_key().
*
* This macro returns a compile-time constant if its arguments are
* compile-time constants.
*
* \warning This function may call its arguments multiple times or
* zero times, so you should not pass arguments that contain
* side effects.
*
* The following code illustrates how to allocate enough memory to export
* a key by querying the key type and size at runtime.
* \code{c}
* psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
* psa_status_t status;
* status = psa_get_key_attributes(key, &attributes);
* if (status != PSA_SUCCESS) handle_error(...);
* psa_key_type_t key_type = psa_get_key_type(&attributes);
* size_t key_bits = psa_get_key_bits(&attributes);
* size_t buffer_size = PSA_KEY_EXPORT_MAX_SIZE(key_type, key_bits);
* psa_reset_key_attributes(&attributes);
* uint8_t *buffer = malloc(buffer_size);
* if (buffer == NULL) handle_error(...);
* size_t buffer_length;
* status = psa_export_key(key, buffer, buffer_size, &buffer_length);
* if (status != PSA_SUCCESS) handle_error(...);
* \endcode
*
* For psa_export_public_key(), calculate the buffer size from the
* public key type. You can use the macro #PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR
* to convert a key pair type to the corresponding public key type.
* \code{c}
* psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
* psa_status_t status;
* status = psa_get_key_attributes(key, &attributes);
* if (status != PSA_SUCCESS) handle_error(...);
* psa_key_type_t key_type = psa_get_key_type(&attributes);
* psa_key_type_t public_key_type = PSA_KEY_TYPE_PUBLIC_KEY_OF_KEY_PAIR(key_type);
* size_t key_bits = psa_get_key_bits(&attributes);
* size_t buffer_size = PSA_KEY_EXPORT_MAX_SIZE(public_key_type, key_bits);
* psa_reset_key_attributes(&attributes);
* uint8_t *buffer = malloc(buffer_size);
* if (buffer == NULL) handle_error(...);
* size_t buffer_length;
* status = psa_export_public_key(key, buffer, buffer_size, &buffer_length);
* if (status != PSA_SUCCESS) handle_error(...);
* \endcode
*
* \param key_type A supported key type.
* \param key_bits The size of the key in bits.
*
* \return If the parameters are valid and supported, return
* a buffer size in bytes that guarantees that
* psa_sign_hash() will not fail with
* #PSA_ERROR_BUFFER_TOO_SMALL.
* If the parameters are a valid combination that is not supported
* by the implementation, this macro shall return either a
* sensible size or 0.
* If the parameters are not valid, the
* return value is unspecified.
*/
#define PSA_KEY_EXPORT_MAX_SIZE(key_type, key_bits) \
(PSA_KEY_TYPE_IS_UNSTRUCTURED(key_type) ? PSA_BITS_TO_BYTES(key_bits) : \
(key_type) == PSA_KEY_TYPE_RSA_KEY_PAIR ? PSA_KEY_EXPORT_RSA_KEY_PAIR_MAX_SIZE(key_bits) : \
(key_type) == PSA_KEY_TYPE_RSA_PUBLIC_KEY ? PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \
(key_type) == PSA_KEY_TYPE_DSA_KEY_PAIR ? PSA_KEY_EXPORT_DSA_KEY_PAIR_MAX_SIZE(key_bits) : \
(key_type) == PSA_KEY_TYPE_DSA_PUBLIC_KEY ? PSA_KEY_EXPORT_DSA_PUBLIC_KEY_MAX_SIZE(key_bits) : \
PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type) ? PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(key_bits) : \
PSA_KEY_TYPE_IS_ECC_PUBLIC_KEY(key_type) ? PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE(key_bits) : \
0)
#endif /* PSA_CRYPTO_SIZES_H */

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/*
* AES-NI support functions
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* [AES-WP] http://software.intel.com/en-us/articles/intel-advanced-encryption-standard-aes-instructions-set
* [CLMUL-WP] http://software.intel.com/en-us/articles/intel-carry-less-multiplication-instruction-and-its-usage-for-computing-the-gcm-mode/
*/
#include "common.h"
#if defined(MBEDTLS_AESNI_C)
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
#warning "MBEDTLS_AESNI_C is known to cause spurious error reports with some memory sanitizers as they do not understand the assembly code."
#endif
#endif
#include "mbedtls/aesni.h"
#include <string.h>
#ifndef asm
#define asm __asm
#endif
#if defined(MBEDTLS_HAVE_X86_64)
/*
* AES-NI support detection routine
*/
int mbedtls_aesni_has_support( unsigned int what )
{
static int done = 0;
static unsigned int c = 0;
if( ! done )
{
asm( "movl $1, %%eax \n\t"
"cpuid \n\t"
: "=c" (c)
:
: "eax", "ebx", "edx" );
done = 1;
}
return( ( c & what ) != 0 );
}
/*
* Binutils needs to be at least 2.19 to support AES-NI instructions.
* Unfortunately, a lot of users have a lower version now (2014-04).
* Emit bytecode directly in order to support "old" version of gas.
*
* Opcodes from the Intel architecture reference manual, vol. 3.
* We always use registers, so we don't need prefixes for memory operands.
* Operand macros are in gas order (src, dst) as opposed to Intel order
* (dst, src) in order to blend better into the surrounding assembly code.
*/
#define AESDEC ".byte 0x66,0x0F,0x38,0xDE,"
#define AESDECLAST ".byte 0x66,0x0F,0x38,0xDF,"
#define AESENC ".byte 0x66,0x0F,0x38,0xDC,"
#define AESENCLAST ".byte 0x66,0x0F,0x38,0xDD,"
#define AESIMC ".byte 0x66,0x0F,0x38,0xDB,"
#define AESKEYGENA ".byte 0x66,0x0F,0x3A,0xDF,"
#define PCLMULQDQ ".byte 0x66,0x0F,0x3A,0x44,"
#define xmm0_xmm0 "0xC0"
#define xmm0_xmm1 "0xC8"
#define xmm0_xmm2 "0xD0"
#define xmm0_xmm3 "0xD8"
#define xmm0_xmm4 "0xE0"
#define xmm1_xmm0 "0xC1"
#define xmm1_xmm2 "0xD1"
/*
* AES-NI AES-ECB block en(de)cryption
*/
int mbedtls_aesni_crypt_ecb( mbedtls_aes_context *ctx,
int mode,
const unsigned char input[16],
unsigned char output[16] )
{
asm( "movdqu (%3), %%xmm0 \n\t" // load input
"movdqu (%1), %%xmm1 \n\t" // load round key 0
"pxor %%xmm1, %%xmm0 \n\t" // round 0
"add $16, %1 \n\t" // point to next round key
"subl $1, %0 \n\t" // normal rounds = nr - 1
"test %2, %2 \n\t" // mode?
"jz 2f \n\t" // 0 = decrypt
"1: \n\t" // encryption loop
"movdqu (%1), %%xmm1 \n\t" // load round key
AESENC xmm1_xmm0 "\n\t" // do round
"add $16, %1 \n\t" // point to next round key
"subl $1, %0 \n\t" // loop
"jnz 1b \n\t"
"movdqu (%1), %%xmm1 \n\t" // load round key
AESENCLAST xmm1_xmm0 "\n\t" // last round
"jmp 3f \n\t"
"2: \n\t" // decryption loop
"movdqu (%1), %%xmm1 \n\t"
AESDEC xmm1_xmm0 "\n\t" // do round
"add $16, %1 \n\t"
"subl $1, %0 \n\t"
"jnz 2b \n\t"
"movdqu (%1), %%xmm1 \n\t" // load round key
AESDECLAST xmm1_xmm0 "\n\t" // last round
"3: \n\t"
"movdqu %%xmm0, (%4) \n\t" // export output
:
: "r" (ctx->nr), "r" (ctx->rk), "r" (mode), "r" (input), "r" (output)
: "memory", "cc", "xmm0", "xmm1" );
return( 0 );
}
/*
* GCM multiplication: c = a times b in GF(2^128)
* Based on [CLMUL-WP] algorithms 1 (with equation 27) and 5.
*/
void mbedtls_aesni_gcm_mult( unsigned char c[16],
const unsigned char a[16],
const unsigned char b[16] )
{
unsigned char aa[16], bb[16], cc[16];
size_t i;
/* The inputs are in big-endian order, so byte-reverse them */
for( i = 0; i < 16; i++ )
{
aa[i] = a[15 - i];
bb[i] = b[15 - i];
}
asm( "movdqu (%0), %%xmm0 \n\t" // a1:a0
"movdqu (%1), %%xmm1 \n\t" // b1:b0
/*
* Caryless multiplication xmm2:xmm1 = xmm0 * xmm1
* using [CLMUL-WP] algorithm 1 (p. 13).
*/
"movdqa %%xmm1, %%xmm2 \n\t" // copy of b1:b0
"movdqa %%xmm1, %%xmm3 \n\t" // same
"movdqa %%xmm1, %%xmm4 \n\t" // same
PCLMULQDQ xmm0_xmm1 ",0x00 \n\t" // a0*b0 = c1:c0
PCLMULQDQ xmm0_xmm2 ",0x11 \n\t" // a1*b1 = d1:d0
PCLMULQDQ xmm0_xmm3 ",0x10 \n\t" // a0*b1 = e1:e0
PCLMULQDQ xmm0_xmm4 ",0x01 \n\t" // a1*b0 = f1:f0
"pxor %%xmm3, %%xmm4 \n\t" // e1+f1:e0+f0
"movdqa %%xmm4, %%xmm3 \n\t" // same
"psrldq $8, %%xmm4 \n\t" // 0:e1+f1
"pslldq $8, %%xmm3 \n\t" // e0+f0:0
"pxor %%xmm4, %%xmm2 \n\t" // d1:d0+e1+f1
"pxor %%xmm3, %%xmm1 \n\t" // c1+e0+f1:c0
/*
* Now shift the result one bit to the left,
* taking advantage of [CLMUL-WP] eq 27 (p. 20)
*/
"movdqa %%xmm1, %%xmm3 \n\t" // r1:r0
"movdqa %%xmm2, %%xmm4 \n\t" // r3:r2
"psllq $1, %%xmm1 \n\t" // r1<<1:r0<<1
"psllq $1, %%xmm2 \n\t" // r3<<1:r2<<1
"psrlq $63, %%xmm3 \n\t" // r1>>63:r0>>63
"psrlq $63, %%xmm4 \n\t" // r3>>63:r2>>63
"movdqa %%xmm3, %%xmm5 \n\t" // r1>>63:r0>>63
"pslldq $8, %%xmm3 \n\t" // r0>>63:0
"pslldq $8, %%xmm4 \n\t" // r2>>63:0
"psrldq $8, %%xmm5 \n\t" // 0:r1>>63
"por %%xmm3, %%xmm1 \n\t" // r1<<1|r0>>63:r0<<1
"por %%xmm4, %%xmm2 \n\t" // r3<<1|r2>>62:r2<<1
"por %%xmm5, %%xmm2 \n\t" // r3<<1|r2>>62:r2<<1|r1>>63
/*
* Now reduce modulo the GCM polynomial x^128 + x^7 + x^2 + x + 1
* using [CLMUL-WP] algorithm 5 (p. 20).
* Currently xmm2:xmm1 holds x3:x2:x1:x0 (already shifted).
*/
/* Step 2 (1) */
"movdqa %%xmm1, %%xmm3 \n\t" // x1:x0
"movdqa %%xmm1, %%xmm4 \n\t" // same
"movdqa %%xmm1, %%xmm5 \n\t" // same
"psllq $63, %%xmm3 \n\t" // x1<<63:x0<<63 = stuff:a
"psllq $62, %%xmm4 \n\t" // x1<<62:x0<<62 = stuff:b
"psllq $57, %%xmm5 \n\t" // x1<<57:x0<<57 = stuff:c
/* Step 2 (2) */
"pxor %%xmm4, %%xmm3 \n\t" // stuff:a+b
"pxor %%xmm5, %%xmm3 \n\t" // stuff:a+b+c
"pslldq $8, %%xmm3 \n\t" // a+b+c:0
"pxor %%xmm3, %%xmm1 \n\t" // x1+a+b+c:x0 = d:x0
/* Steps 3 and 4 */
"movdqa %%xmm1,%%xmm0 \n\t" // d:x0
"movdqa %%xmm1,%%xmm4 \n\t" // same
"movdqa %%xmm1,%%xmm5 \n\t" // same
"psrlq $1, %%xmm0 \n\t" // e1:x0>>1 = e1:e0'
"psrlq $2, %%xmm4 \n\t" // f1:x0>>2 = f1:f0'
"psrlq $7, %%xmm5 \n\t" // g1:x0>>7 = g1:g0'
"pxor %%xmm4, %%xmm0 \n\t" // e1+f1:e0'+f0'
"pxor %%xmm5, %%xmm0 \n\t" // e1+f1+g1:e0'+f0'+g0'
// e0'+f0'+g0' is almost e0+f0+g0, ex\tcept for some missing
// bits carried from d. Now get those\t bits back in.
"movdqa %%xmm1,%%xmm3 \n\t" // d:x0
"movdqa %%xmm1,%%xmm4 \n\t" // same
"movdqa %%xmm1,%%xmm5 \n\t" // same
"psllq $63, %%xmm3 \n\t" // d<<63:stuff
"psllq $62, %%xmm4 \n\t" // d<<62:stuff
"psllq $57, %%xmm5 \n\t" // d<<57:stuff
"pxor %%xmm4, %%xmm3 \n\t" // d<<63+d<<62:stuff
"pxor %%xmm5, %%xmm3 \n\t" // missing bits of d:stuff
"psrldq $8, %%xmm3 \n\t" // 0:missing bits of d
"pxor %%xmm3, %%xmm0 \n\t" // e1+f1+g1:e0+f0+g0
"pxor %%xmm1, %%xmm0 \n\t" // h1:h0
"pxor %%xmm2, %%xmm0 \n\t" // x3+h1:x2+h0
"movdqu %%xmm0, (%2) \n\t" // done
:
: "r" (aa), "r" (bb), "r" (cc)
: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5" );
/* Now byte-reverse the outputs */
for( i = 0; i < 16; i++ )
c[i] = cc[15 - i];
return;
}
/*
* Compute decryption round keys from encryption round keys
*/
void mbedtls_aesni_inverse_key( unsigned char *invkey,
const unsigned char *fwdkey, int nr )
{
unsigned char *ik = invkey;
const unsigned char *fk = fwdkey + 16 * nr;
memcpy( ik, fk, 16 );
for( fk -= 16, ik += 16; fk > fwdkey; fk -= 16, ik += 16 )
asm( "movdqu (%0), %%xmm0 \n\t"
AESIMC xmm0_xmm0 "\n\t"
"movdqu %%xmm0, (%1) \n\t"
:
: "r" (fk), "r" (ik)
: "memory", "xmm0" );
memcpy( ik, fk, 16 );
}
/*
* Key expansion, 128-bit case
*/
static void aesni_setkey_enc_128( unsigned char *rk,
const unsigned char *key )
{
asm( "movdqu (%1), %%xmm0 \n\t" // copy the original key
"movdqu %%xmm0, (%0) \n\t" // as round key 0
"jmp 2f \n\t" // skip auxiliary routine
/*
* Finish generating the next round key.
*
* On entry xmm0 is r3:r2:r1:r0 and xmm1 is X:stuff:stuff:stuff
* with X = rot( sub( r3 ) ) ^ RCON.
*
* On exit, xmm0 is r7:r6:r5:r4
* with r4 = X + r0, r5 = r4 + r1, r6 = r5 + r2, r7 = r6 + r3
* and those are written to the round key buffer.
*/
"1: \n\t"
"pshufd $0xff, %%xmm1, %%xmm1 \n\t" // X:X:X:X
"pxor %%xmm0, %%xmm1 \n\t" // X+r3:X+r2:X+r1:r4
"pslldq $4, %%xmm0 \n\t" // r2:r1:r0:0
"pxor %%xmm0, %%xmm1 \n\t" // X+r3+r2:X+r2+r1:r5:r4
"pslldq $4, %%xmm0 \n\t" // etc
"pxor %%xmm0, %%xmm1 \n\t"
"pslldq $4, %%xmm0 \n\t"
"pxor %%xmm1, %%xmm0 \n\t" // update xmm0 for next time!
"add $16, %0 \n\t" // point to next round key
"movdqu %%xmm0, (%0) \n\t" // write it
"ret \n\t"
/* Main "loop" */
"2: \n\t"
AESKEYGENA xmm0_xmm1 ",0x01 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x02 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x04 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x08 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x10 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x20 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x40 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x80 \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x1B \n\tcall 1b \n\t"
AESKEYGENA xmm0_xmm1 ",0x36 \n\tcall 1b \n\t"
:
: "r" (rk), "r" (key)
: "memory", "cc", "0" );
}
/*
* Key expansion, 192-bit case
*/
static void aesni_setkey_enc_192( unsigned char *rk,
const unsigned char *key )
{
asm( "movdqu (%1), %%xmm0 \n\t" // copy original round key
"movdqu %%xmm0, (%0) \n\t"
"add $16, %0 \n\t"
"movq 16(%1), %%xmm1 \n\t"
"movq %%xmm1, (%0) \n\t"
"add $8, %0 \n\t"
"jmp 2f \n\t" // skip auxiliary routine
/*
* Finish generating the next 6 quarter-keys.
*
* On entry xmm0 is r3:r2:r1:r0, xmm1 is stuff:stuff:r5:r4
* and xmm2 is stuff:stuff:X:stuff with X = rot( sub( r3 ) ) ^ RCON.
*
* On exit, xmm0 is r9:r8:r7:r6 and xmm1 is stuff:stuff:r11:r10
* and those are written to the round key buffer.
*/
"1: \n\t"
"pshufd $0x55, %%xmm2, %%xmm2 \n\t" // X:X:X:X
"pxor %%xmm0, %%xmm2 \n\t" // X+r3:X+r2:X+r1:r4
"pslldq $4, %%xmm0 \n\t" // etc
"pxor %%xmm0, %%xmm2 \n\t"
"pslldq $4, %%xmm0 \n\t"
"pxor %%xmm0, %%xmm2 \n\t"
"pslldq $4, %%xmm0 \n\t"
"pxor %%xmm2, %%xmm0 \n\t" // update xmm0 = r9:r8:r7:r6
"movdqu %%xmm0, (%0) \n\t"
"add $16, %0 \n\t"
"pshufd $0xff, %%xmm0, %%xmm2 \n\t" // r9:r9:r9:r9
"pxor %%xmm1, %%xmm2 \n\t" // stuff:stuff:r9+r5:r10
"pslldq $4, %%xmm1 \n\t" // r2:r1:r0:0
"pxor %%xmm2, %%xmm1 \n\t" // xmm1 = stuff:stuff:r11:r10
"movq %%xmm1, (%0) \n\t"
"add $8, %0 \n\t"
"ret \n\t"
"2: \n\t"
AESKEYGENA xmm1_xmm2 ",0x01 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x02 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x04 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x08 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x10 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x20 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x40 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x80 \n\tcall 1b \n\t"
:
: "r" (rk), "r" (key)
: "memory", "cc", "0" );
}
/*
* Key expansion, 256-bit case
*/
static void aesni_setkey_enc_256( unsigned char *rk,
const unsigned char *key )
{
asm( "movdqu (%1), %%xmm0 \n\t"
"movdqu %%xmm0, (%0) \n\t"
"add $16, %0 \n\t"
"movdqu 16(%1), %%xmm1 \n\t"
"movdqu %%xmm1, (%0) \n\t"
"jmp 2f \n\t" // skip auxiliary routine
/*
* Finish generating the next two round keys.
*
* On entry xmm0 is r3:r2:r1:r0, xmm1 is r7:r6:r5:r4 and
* xmm2 is X:stuff:stuff:stuff with X = rot( sub( r7 )) ^ RCON
*
* On exit, xmm0 is r11:r10:r9:r8 and xmm1 is r15:r14:r13:r12
* and those have been written to the output buffer.
*/
"1: \n\t"
"pshufd $0xff, %%xmm2, %%xmm2 \n\t"
"pxor %%xmm0, %%xmm2 \n\t"
"pslldq $4, %%xmm0 \n\t"
"pxor %%xmm0, %%xmm2 \n\t"
"pslldq $4, %%xmm0 \n\t"
"pxor %%xmm0, %%xmm2 \n\t"
"pslldq $4, %%xmm0 \n\t"
"pxor %%xmm2, %%xmm0 \n\t"
"add $16, %0 \n\t"
"movdqu %%xmm0, (%0) \n\t"
/* Set xmm2 to stuff:Y:stuff:stuff with Y = subword( r11 )
* and proceed to generate next round key from there */
AESKEYGENA xmm0_xmm2 ",0x00 \n\t"
"pshufd $0xaa, %%xmm2, %%xmm2 \n\t"
"pxor %%xmm1, %%xmm2 \n\t"
"pslldq $4, %%xmm1 \n\t"
"pxor %%xmm1, %%xmm2 \n\t"
"pslldq $4, %%xmm1 \n\t"
"pxor %%xmm1, %%xmm2 \n\t"
"pslldq $4, %%xmm1 \n\t"
"pxor %%xmm2, %%xmm1 \n\t"
"add $16, %0 \n\t"
"movdqu %%xmm1, (%0) \n\t"
"ret \n\t"
/*
* Main "loop" - Generating one more key than necessary,
* see definition of mbedtls_aes_context.buf
*/
"2: \n\t"
AESKEYGENA xmm1_xmm2 ",0x01 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x02 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x04 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x08 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x10 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x20 \n\tcall 1b \n\t"
AESKEYGENA xmm1_xmm2 ",0x40 \n\tcall 1b \n\t"
:
: "r" (rk), "r" (key)
: "memory", "cc", "0" );
}
/*
* Key expansion, wrapper
*/
int mbedtls_aesni_setkey_enc( unsigned char *rk,
const unsigned char *key,
size_t bits )
{
switch( bits )
{
case 128: aesni_setkey_enc_128( rk, key ); break;
case 192: aesni_setkey_enc_192( rk, key ); break;
case 256: aesni_setkey_enc_256( rk, key ); break;
default : return( MBEDTLS_ERR_AES_INVALID_KEY_LENGTH );
}
return( 0 );
}
#endif /* MBEDTLS_HAVE_X86_64 */
#endif /* MBEDTLS_AESNI_C */

View File

@@ -1,195 +0,0 @@
/*
* An implementation of the ARCFOUR algorithm
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The ARCFOUR algorithm was publicly disclosed on 94/09.
*
* http://groups.google.com/group/sci.crypt/msg/10a300c9d21afca0
*/
#include "common.h"
#if defined(MBEDTLS_ARC4_C)
#include "mbedtls/arc4.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_ARC4_ALT)
void mbedtls_arc4_init( mbedtls_arc4_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_arc4_context ) );
}
void mbedtls_arc4_free( mbedtls_arc4_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_arc4_context ) );
}
/*
* ARC4 key schedule
*/
void mbedtls_arc4_setup( mbedtls_arc4_context *ctx, const unsigned char *key,
unsigned int keylen )
{
int i, j, a;
unsigned int k;
unsigned char *m;
ctx->x = 0;
ctx->y = 0;
m = ctx->m;
for( i = 0; i < 256; i++ )
m[i] = (unsigned char) i;
j = k = 0;
for( i = 0; i < 256; i++, k++ )
{
if( k >= keylen ) k = 0;
a = m[i];
j = ( j + a + key[k] ) & 0xFF;
m[i] = m[j];
m[j] = (unsigned char) a;
}
}
/*
* ARC4 cipher function
*/
int mbedtls_arc4_crypt( mbedtls_arc4_context *ctx, size_t length, const unsigned char *input,
unsigned char *output )
{
int x, y, a, b;
size_t i;
unsigned char *m;
x = ctx->x;
y = ctx->y;
m = ctx->m;
for( i = 0; i < length; i++ )
{
x = ( x + 1 ) & 0xFF; a = m[x];
y = ( y + a ) & 0xFF; b = m[y];
m[x] = (unsigned char) b;
m[y] = (unsigned char) a;
output[i] = (unsigned char)
( input[i] ^ m[(unsigned char)( a + b )] );
}
ctx->x = x;
ctx->y = y;
return( 0 );
}
#endif /* !MBEDTLS_ARC4_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* ARC4 tests vectors as posted by Eric Rescorla in sep. 1994:
*
* http://groups.google.com/group/comp.security.misc/msg/10a300c9d21afca0
*/
static const unsigned char arc4_test_key[3][8] =
{
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
};
static const unsigned char arc4_test_pt[3][8] =
{
{ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
};
static const unsigned char arc4_test_ct[3][8] =
{
{ 0x75, 0xB7, 0x87, 0x80, 0x99, 0xE0, 0xC5, 0x96 },
{ 0x74, 0x94, 0xC2, 0xE7, 0x10, 0x4B, 0x08, 0x79 },
{ 0xDE, 0x18, 0x89, 0x41, 0xA3, 0x37, 0x5D, 0x3A }
};
/*
* Checkup routine
*/
int mbedtls_arc4_self_test( int verbose )
{
int i, ret = 0;
unsigned char ibuf[8];
unsigned char obuf[8];
mbedtls_arc4_context ctx;
mbedtls_arc4_init( &ctx );
for( i = 0; i < 3; i++ )
{
if( verbose != 0 )
mbedtls_printf( " ARC4 test #%d: ", i + 1 );
memcpy( ibuf, arc4_test_pt[i], 8 );
mbedtls_arc4_setup( &ctx, arc4_test_key[i], 8 );
mbedtls_arc4_crypt( &ctx, 8, ibuf, obuf );
if( memcmp( obuf, arc4_test_ct[i], 8 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_arc4_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_ARC4_C */

View File

@@ -1,481 +0,0 @@
/*
* Generic ASN.1 parsing
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_ASN1_PARSE_C)
#include "mbedtls/asn1.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_BIGNUM_C)
#include "mbedtls/bignum.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
/*
* ASN.1 DER decoding routines
*/
int mbedtls_asn1_get_len( unsigned char **p,
const unsigned char *end,
size_t *len )
{
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
if( ( **p & 0x80 ) == 0 )
*len = *(*p)++;
else
{
switch( **p & 0x7F )
{
case 1:
if( ( end - *p ) < 2 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
*len = (*p)[1];
(*p) += 2;
break;
case 2:
if( ( end - *p ) < 3 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
*len = ( (size_t)(*p)[1] << 8 ) | (*p)[2];
(*p) += 3;
break;
case 3:
if( ( end - *p ) < 4 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
*len = ( (size_t)(*p)[1] << 16 ) |
( (size_t)(*p)[2] << 8 ) | (*p)[3];
(*p) += 4;
break;
case 4:
if( ( end - *p ) < 5 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
*len = ( (size_t)(*p)[1] << 24 ) | ( (size_t)(*p)[2] << 16 ) |
( (size_t)(*p)[3] << 8 ) | (*p)[4];
(*p) += 5;
break;
default:
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
}
}
if( *len > (size_t) ( end - *p ) )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
return( 0 );
}
int mbedtls_asn1_get_tag( unsigned char **p,
const unsigned char *end,
size_t *len, int tag )
{
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
if( **p != tag )
return( MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
(*p)++;
return( mbedtls_asn1_get_len( p, end, len ) );
}
int mbedtls_asn1_get_bool( unsigned char **p,
const unsigned char *end,
int *val )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_BOOLEAN ) ) != 0 )
return( ret );
if( len != 1 )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
*val = ( **p != 0 ) ? 1 : 0;
(*p)++;
return( 0 );
}
static int asn1_get_tagged_int( unsigned char **p,
const unsigned char *end,
int tag, int *val )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, tag ) ) != 0 )
return( ret );
/*
* len==0 is malformed (0 must be represented as 020100 for INTEGER,
* or 0A0100 for ENUMERATED tags
*/
if( len == 0 )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
/* This is a cryptography library. Reject negative integers. */
if( ( **p & 0x80 ) != 0 )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
/* Skip leading zeros. */
while( len > 0 && **p == 0 )
{
++( *p );
--len;
}
/* Reject integers that don't fit in an int. This code assumes that
* the int type has no padding bit. */
if( len > sizeof( int ) )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
if( len == sizeof( int ) && ( **p & 0x80 ) != 0 )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
*val = 0;
while( len-- > 0 )
{
*val = ( *val << 8 ) | **p;
(*p)++;
}
return( 0 );
}
int mbedtls_asn1_get_int( unsigned char **p,
const unsigned char *end,
int *val )
{
return( asn1_get_tagged_int( p, end, MBEDTLS_ASN1_INTEGER, val) );
}
int mbedtls_asn1_get_enum( unsigned char **p,
const unsigned char *end,
int *val )
{
return( asn1_get_tagged_int( p, end, MBEDTLS_ASN1_ENUMERATED, val) );
}
#if defined(MBEDTLS_BIGNUM_C)
int mbedtls_asn1_get_mpi( unsigned char **p,
const unsigned char *end,
mbedtls_mpi *X )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 )
return( ret );
ret = mbedtls_mpi_read_binary( X, *p, len );
*p += len;
return( ret );
}
#endif /* MBEDTLS_BIGNUM_C */
int mbedtls_asn1_get_bitstring( unsigned char **p, const unsigned char *end,
mbedtls_asn1_bitstring *bs)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
/* Certificate type is a single byte bitstring */
if( ( ret = mbedtls_asn1_get_tag( p, end, &bs->len, MBEDTLS_ASN1_BIT_STRING ) ) != 0 )
return( ret );
/* Check length, subtract one for actual bit string length */
if( bs->len < 1 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
bs->len -= 1;
/* Get number of unused bits, ensure unused bits <= 7 */
bs->unused_bits = **p;
if( bs->unused_bits > 7 )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
(*p)++;
/* Get actual bitstring */
bs->p = *p;
*p += bs->len;
if( *p != end )
return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* Traverse an ASN.1 "SEQUENCE OF <tag>"
* and call a callback for each entry found.
*/
int mbedtls_asn1_traverse_sequence_of(
unsigned char **p,
const unsigned char *end,
unsigned char tag_must_mask, unsigned char tag_must_val,
unsigned char tag_may_mask, unsigned char tag_may_val,
int (*cb)( void *ctx, int tag,
unsigned char *start, size_t len ),
void *ctx )
{
int ret;
size_t len;
/* Get main sequence tag */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
return( ret );
}
if( *p + len != end )
return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
while( *p < end )
{
unsigned char const tag = *(*p)++;
if( ( tag & tag_must_mask ) != tag_must_val )
return( MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
if( ( ret = mbedtls_asn1_get_len( p, end, &len ) ) != 0 )
return( ret );
if( ( tag & tag_may_mask ) == tag_may_val )
{
if( cb != NULL )
{
ret = cb( ctx, tag, *p, len );
if( ret != 0 )
return( ret );
}
}
*p += len;
}
return( 0 );
}
/*
* Get a bit string without unused bits
*/
int mbedtls_asn1_get_bitstring_null( unsigned char **p, const unsigned char *end,
size_t *len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = mbedtls_asn1_get_tag( p, end, len, MBEDTLS_ASN1_BIT_STRING ) ) != 0 )
return( ret );
if( *len == 0 )
return( MBEDTLS_ERR_ASN1_INVALID_DATA );
--( *len );
if( **p != 0 )
return( MBEDTLS_ERR_ASN1_INVALID_DATA );
++( *p );
return( 0 );
}
void mbedtls_asn1_sequence_free( mbedtls_asn1_sequence *seq )
{
while( seq != NULL )
{
mbedtls_asn1_sequence *next = seq->next;
mbedtls_platform_zeroize( seq, sizeof( *seq ) );
mbedtls_free( seq );
seq = next;
}
}
typedef struct
{
int tag;
mbedtls_asn1_sequence *cur;
} asn1_get_sequence_of_cb_ctx_t;
static int asn1_get_sequence_of_cb( void *ctx,
int tag,
unsigned char *start,
size_t len )
{
asn1_get_sequence_of_cb_ctx_t *cb_ctx =
(asn1_get_sequence_of_cb_ctx_t *) ctx;
mbedtls_asn1_sequence *cur =
cb_ctx->cur;
if( cur->buf.p != NULL )
{
cur->next =
mbedtls_calloc( 1, sizeof( mbedtls_asn1_sequence ) );
if( cur->next == NULL )
return( MBEDTLS_ERR_ASN1_ALLOC_FAILED );
cur = cur->next;
}
cur->buf.p = start;
cur->buf.len = len;
cur->buf.tag = tag;
cb_ctx->cur = cur;
return( 0 );
}
/*
* Parses and splits an ASN.1 "SEQUENCE OF <tag>"
*/
int mbedtls_asn1_get_sequence_of( unsigned char **p,
const unsigned char *end,
mbedtls_asn1_sequence *cur,
int tag)
{
asn1_get_sequence_of_cb_ctx_t cb_ctx = { tag, cur };
memset( cur, 0, sizeof( mbedtls_asn1_sequence ) );
return( mbedtls_asn1_traverse_sequence_of(
p, end, 0xFF, tag, 0, 0,
asn1_get_sequence_of_cb, &cb_ctx ) );
}
int mbedtls_asn1_get_alg( unsigned char **p,
const unsigned char *end,
mbedtls_asn1_buf *alg, mbedtls_asn1_buf *params )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( ret );
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_ASN1_OUT_OF_DATA );
alg->tag = **p;
end = *p + len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &alg->len, MBEDTLS_ASN1_OID ) ) != 0 )
return( ret );
alg->p = *p;
*p += alg->len;
if( *p == end )
{
mbedtls_platform_zeroize( params, sizeof(mbedtls_asn1_buf) );
return( 0 );
}
params->tag = **p;
(*p)++;
if( ( ret = mbedtls_asn1_get_len( p, end, &params->len ) ) != 0 )
return( ret );
params->p = *p;
*p += params->len;
if( *p != end )
return( MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
int mbedtls_asn1_get_alg_null( unsigned char **p,
const unsigned char *end,
mbedtls_asn1_buf *alg )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_asn1_buf params;
memset( &params, 0, sizeof(mbedtls_asn1_buf) );
if( ( ret = mbedtls_asn1_get_alg( p, end, alg, &params ) ) != 0 )
return( ret );
if( ( params.tag != MBEDTLS_ASN1_NULL && params.tag != 0 ) || params.len != 0 )
return( MBEDTLS_ERR_ASN1_INVALID_DATA );
return( 0 );
}
void mbedtls_asn1_free_named_data( mbedtls_asn1_named_data *cur )
{
if( cur == NULL )
return;
mbedtls_free( cur->oid.p );
mbedtls_free( cur->val.p );
mbedtls_platform_zeroize( cur, sizeof( mbedtls_asn1_named_data ) );
}
void mbedtls_asn1_free_named_data_list( mbedtls_asn1_named_data **head )
{
mbedtls_asn1_named_data *cur;
while( ( cur = *head ) != NULL )
{
*head = cur->next;
mbedtls_asn1_free_named_data( cur );
mbedtls_free( cur );
}
}
mbedtls_asn1_named_data *mbedtls_asn1_find_named_data( mbedtls_asn1_named_data *list,
const char *oid, size_t len )
{
while( list != NULL )
{
if( list->oid.len == len &&
memcmp( list->oid.p, oid, len ) == 0 )
{
break;
}
list = list->next;
}
return( list );
}
#endif /* MBEDTLS_ASN1_PARSE_C */

View File

@@ -1,480 +0,0 @@
/*
* ASN.1 buffer writing functionality
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_ASN1_WRITE_C)
#include "mbedtls/asn1write.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
int mbedtls_asn1_write_len( unsigned char **p, unsigned char *start, size_t len )
{
if( len < 0x80 )
{
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = (unsigned char) len;
return( 1 );
}
if( len <= 0xFF )
{
if( *p - start < 2 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = (unsigned char) len;
*--(*p) = 0x81;
return( 2 );
}
if( len <= 0xFFFF )
{
if( *p - start < 3 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = ( len ) & 0xFF;
*--(*p) = ( len >> 8 ) & 0xFF;
*--(*p) = 0x82;
return( 3 );
}
if( len <= 0xFFFFFF )
{
if( *p - start < 4 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = ( len ) & 0xFF;
*--(*p) = ( len >> 8 ) & 0xFF;
*--(*p) = ( len >> 16 ) & 0xFF;
*--(*p) = 0x83;
return( 4 );
}
#if SIZE_MAX > 0xFFFFFFFF
if( len <= 0xFFFFFFFF )
#endif
{
if( *p - start < 5 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = ( len ) & 0xFF;
*--(*p) = ( len >> 8 ) & 0xFF;
*--(*p) = ( len >> 16 ) & 0xFF;
*--(*p) = ( len >> 24 ) & 0xFF;
*--(*p) = 0x84;
return( 5 );
}
#if SIZE_MAX > 0xFFFFFFFF
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
#endif
}
int mbedtls_asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag )
{
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = tag;
return( 1 );
}
int mbedtls_asn1_write_raw_buffer( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size )
{
size_t len = 0;
if( *p < start || (size_t)( *p - start ) < size )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len = size;
(*p) -= len;
memcpy( *p, buf, len );
return( (int) len );
}
#if defined(MBEDTLS_BIGNUM_C)
int mbedtls_asn1_write_mpi( unsigned char **p, unsigned char *start, const mbedtls_mpi *X )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
// Write the MPI
//
len = mbedtls_mpi_size( X );
if( *p < start || (size_t)( *p - start ) < len )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
(*p) -= len;
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( X, *p, len ) );
// DER format assumes 2s complement for numbers, so the leftmost bit
// should be 0 for positive numbers and 1 for negative numbers.
//
if( X->s ==1 && **p & 0x80 )
{
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = 0x00;
len += 1;
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_INTEGER ) );
ret = (int) len;
cleanup:
return( ret );
}
#endif /* MBEDTLS_BIGNUM_C */
int mbedtls_asn1_write_null( unsigned char **p, unsigned char *start )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
// Write NULL
//
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, 0) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_NULL ) );
return( (int) len );
}
int mbedtls_asn1_write_oid( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) oid, oid_len ) );
MBEDTLS_ASN1_CHK_ADD( len , mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len , mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
return( (int) len );
}
int mbedtls_asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len,
size_t par_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
if( par_len == 0 )
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_null( p, start ) );
else
len += par_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
int mbedtls_asn1_write_bool( unsigned char **p, unsigned char *start, int boolean )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = (boolean) ? 255 : 0;
len++;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BOOLEAN ) );
return( (int) len );
}
static int asn1_write_tagged_int( unsigned char **p, unsigned char *start, int val, int tag )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
do
{
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len += 1;
*--(*p) = val & 0xff;
val >>= 8;
}
while( val > 0 );
if( **p & 0x80 )
{
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = 0x00;
len += 1;
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, tag ) );
return( (int) len );
}
int mbedtls_asn1_write_int( unsigned char **p, unsigned char *start, int val )
{
return( asn1_write_tagged_int( p, start, val, MBEDTLS_ASN1_INTEGER ) );
}
int mbedtls_asn1_write_enum( unsigned char **p, unsigned char *start, int val )
{
return( asn1_write_tagged_int( p, start, val, MBEDTLS_ASN1_ENUMERATED ) );
}
int mbedtls_asn1_write_tagged_string( unsigned char **p, unsigned char *start, int tag,
const char *text, size_t text_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) text, text_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, tag ) );
return( (int) len );
}
int mbedtls_asn1_write_utf8_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len )
{
return( mbedtls_asn1_write_tagged_string(p, start, MBEDTLS_ASN1_UTF8_STRING, text, text_len) );
}
int mbedtls_asn1_write_printable_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len )
{
return( mbedtls_asn1_write_tagged_string(p, start, MBEDTLS_ASN1_PRINTABLE_STRING, text, text_len) );
}
int mbedtls_asn1_write_ia5_string( unsigned char **p, unsigned char *start,
const char *text, size_t text_len )
{
return( mbedtls_asn1_write_tagged_string(p, start, MBEDTLS_ASN1_IA5_STRING, text, text_len) );
}
int mbedtls_asn1_write_named_bitstring( unsigned char **p,
unsigned char *start,
const unsigned char *buf,
size_t bits )
{
size_t unused_bits, byte_len;
const unsigned char *cur_byte;
unsigned char cur_byte_shifted;
unsigned char bit;
byte_len = ( bits + 7 ) / 8;
unused_bits = ( byte_len * 8 ) - bits;
/*
* Named bitstrings require that trailing 0s are excluded in the encoding
* of the bitstring. Trailing 0s are considered part of the 'unused' bits
* when encoding this value in the first content octet
*/
if( bits != 0 )
{
cur_byte = buf + byte_len - 1;
cur_byte_shifted = *cur_byte >> unused_bits;
for( ; ; )
{
bit = cur_byte_shifted & 0x1;
cur_byte_shifted >>= 1;
if( bit != 0 )
break;
bits--;
if( bits == 0 )
break;
if( bits % 8 == 0 )
cur_byte_shifted = *--cur_byte;
}
}
return( mbedtls_asn1_write_bitstring( p, start, buf, bits ) );
}
int mbedtls_asn1_write_bitstring( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t bits )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
size_t unused_bits, byte_len;
byte_len = ( bits + 7 ) / 8;
unused_bits = ( byte_len * 8 ) - bits;
if( *p < start || (size_t)( *p - start ) < byte_len + 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len = byte_len + 1;
/* Write the bitstring. Ensure the unused bits are zeroed */
if( byte_len > 0 )
{
byte_len--;
*--( *p ) = buf[byte_len] & ~( ( 0x1 << unused_bits ) - 1 );
( *p ) -= byte_len;
memcpy( *p, buf, byte_len );
}
/* Write unused bits */
*--( *p ) = (unsigned char)unused_bits;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
return( (int) len );
}
int mbedtls_asn1_write_octet_string( unsigned char **p, unsigned char *start,
const unsigned char *buf, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, buf, size ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
return( (int) len );
}
/* This is a copy of the ASN.1 parsing function mbedtls_asn1_find_named_data(),
* which is replicated to avoid a dependency ASN1_WRITE_C on ASN1_PARSE_C. */
static mbedtls_asn1_named_data *asn1_find_named_data(
mbedtls_asn1_named_data *list,
const char *oid, size_t len )
{
while( list != NULL )
{
if( list->oid.len == len &&
memcmp( list->oid.p, oid, len ) == 0 )
{
break;
}
list = list->next;
}
return( list );
}
mbedtls_asn1_named_data *mbedtls_asn1_store_named_data(
mbedtls_asn1_named_data **head,
const char *oid, size_t oid_len,
const unsigned char *val,
size_t val_len )
{
mbedtls_asn1_named_data *cur;
if( ( cur = asn1_find_named_data( *head, oid, oid_len ) ) == NULL )
{
// Add new entry if not present yet based on OID
//
cur = (mbedtls_asn1_named_data*)mbedtls_calloc( 1,
sizeof(mbedtls_asn1_named_data) );
if( cur == NULL )
return( NULL );
cur->oid.len = oid_len;
cur->oid.p = mbedtls_calloc( 1, oid_len );
if( cur->oid.p == NULL )
{
mbedtls_free( cur );
return( NULL );
}
memcpy( cur->oid.p, oid, oid_len );
cur->val.len = val_len;
if( val_len != 0 )
{
cur->val.p = mbedtls_calloc( 1, val_len );
if( cur->val.p == NULL )
{
mbedtls_free( cur->oid.p );
mbedtls_free( cur );
return( NULL );
}
}
cur->next = *head;
*head = cur;
}
else if( val_len == 0 )
{
mbedtls_free( cur->val.p );
cur->val.p = NULL;
}
else if( cur->val.len != val_len )
{
/*
* Enlarge existing value buffer if needed
* Preserve old data until the allocation succeeded, to leave list in
* a consistent state in case allocation fails.
*/
void *p = mbedtls_calloc( 1, val_len );
if( p == NULL )
return( NULL );
mbedtls_free( cur->val.p );
cur->val.p = p;
cur->val.len = val_len;
}
if( val != NULL )
memcpy( cur->val.p, val, val_len );
return( cur );
}
#endif /* MBEDTLS_ASN1_WRITE_C */

View File

@@ -1,287 +0,0 @@
/*
* RFC 1521 base64 encoding/decoding
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_BASE64_C)
#include "mbedtls/base64.h"
#include <stdint.h>
#if defined(MBEDTLS_SELF_TEST)
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
static const unsigned char base64_enc_map[64] =
{
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd',
'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', '+', '/'
};
static const unsigned char base64_dec_map[128] =
{
127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
127, 127, 127, 127, 127, 127, 127, 127, 127, 127,
127, 127, 127, 62, 127, 127, 127, 63, 52, 53,
54, 55, 56, 57, 58, 59, 60, 61, 127, 127,
127, 64, 127, 127, 127, 0, 1, 2, 3, 4,
5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
25, 127, 127, 127, 127, 127, 127, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
49, 50, 51, 127, 127, 127, 127, 127
};
#define BASE64_SIZE_T_MAX ( (size_t) -1 ) /* SIZE_T_MAX is not standard */
/*
* Encode a buffer into base64 format
*/
int mbedtls_base64_encode( unsigned char *dst, size_t dlen, size_t *olen,
const unsigned char *src, size_t slen )
{
size_t i, n;
int C1, C2, C3;
unsigned char *p;
if( slen == 0 )
{
*olen = 0;
return( 0 );
}
n = slen / 3 + ( slen % 3 != 0 );
if( n > ( BASE64_SIZE_T_MAX - 1 ) / 4 )
{
*olen = BASE64_SIZE_T_MAX;
return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
}
n *= 4;
if( ( dlen < n + 1 ) || ( NULL == dst ) )
{
*olen = n + 1;
return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
}
n = ( slen / 3 ) * 3;
for( i = 0, p = dst; i < n; i += 3 )
{
C1 = *src++;
C2 = *src++;
C3 = *src++;
*p++ = base64_enc_map[(C1 >> 2) & 0x3F];
*p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
*p++ = base64_enc_map[(((C2 & 15) << 2) + (C3 >> 6)) & 0x3F];
*p++ = base64_enc_map[C3 & 0x3F];
}
if( i < slen )
{
C1 = *src++;
C2 = ( ( i + 1 ) < slen ) ? *src++ : 0;
*p++ = base64_enc_map[(C1 >> 2) & 0x3F];
*p++ = base64_enc_map[(((C1 & 3) << 4) + (C2 >> 4)) & 0x3F];
if( ( i + 1 ) < slen )
*p++ = base64_enc_map[((C2 & 15) << 2) & 0x3F];
else *p++ = '=';
*p++ = '=';
}
*olen = p - dst;
*p = 0;
return( 0 );
}
/*
* Decode a base64-formatted buffer
*/
int mbedtls_base64_decode( unsigned char *dst, size_t dlen, size_t *olen,
const unsigned char *src, size_t slen )
{
size_t i, n;
uint32_t j, x;
unsigned char *p;
/* First pass: check for validity and get output length */
for( i = n = j = 0; i < slen; i++ )
{
/* Skip spaces before checking for EOL */
x = 0;
while( i < slen && src[i] == ' ' )
{
++i;
++x;
}
/* Spaces at end of buffer are OK */
if( i == slen )
break;
if( ( slen - i ) >= 2 &&
src[i] == '\r' && src[i + 1] == '\n' )
continue;
if( src[i] == '\n' )
continue;
/* Space inside a line is an error */
if( x != 0 )
return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER );
if( src[i] == '=' && ++j > 2 )
return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER );
if( src[i] > 127 || base64_dec_map[src[i]] == 127 )
return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER );
if( base64_dec_map[src[i]] < 64 && j != 0 )
return( MBEDTLS_ERR_BASE64_INVALID_CHARACTER );
n++;
}
if( n == 0 )
{
*olen = 0;
return( 0 );
}
/* The following expression is to calculate the following formula without
* risk of integer overflow in n:
* n = ( ( n * 6 ) + 7 ) >> 3;
*/
n = ( 6 * ( n >> 3 ) ) + ( ( 6 * ( n & 0x7 ) + 7 ) >> 3 );
n -= j;
if( dst == NULL || dlen < n )
{
*olen = n;
return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
}
for( j = 3, n = x = 0, p = dst; i > 0; i--, src++ )
{
if( *src == '\r' || *src == '\n' || *src == ' ' )
continue;
j -= ( base64_dec_map[*src] == 64 );
x = ( x << 6 ) | ( base64_dec_map[*src] & 0x3F );
if( ++n == 4 )
{
n = 0;
if( j > 0 ) *p++ = (unsigned char)( x >> 16 );
if( j > 1 ) *p++ = (unsigned char)( x >> 8 );
if( j > 2 ) *p++ = (unsigned char)( x );
}
}
*olen = p - dst;
return( 0 );
}
#if defined(MBEDTLS_SELF_TEST)
static const unsigned char base64_test_dec[64] =
{
0x24, 0x48, 0x6E, 0x56, 0x87, 0x62, 0x5A, 0xBD,
0xBF, 0x17, 0xD9, 0xA2, 0xC4, 0x17, 0x1A, 0x01,
0x94, 0xED, 0x8F, 0x1E, 0x11, 0xB3, 0xD7, 0x09,
0x0C, 0xB6, 0xE9, 0x10, 0x6F, 0x22, 0xEE, 0x13,
0xCA, 0xB3, 0x07, 0x05, 0x76, 0xC9, 0xFA, 0x31,
0x6C, 0x08, 0x34, 0xFF, 0x8D, 0xC2, 0x6C, 0x38,
0x00, 0x43, 0xE9, 0x54, 0x97, 0xAF, 0x50, 0x4B,
0xD1, 0x41, 0xBA, 0x95, 0x31, 0x5A, 0x0B, 0x97
};
static const unsigned char base64_test_enc[] =
"JEhuVodiWr2/F9mixBcaAZTtjx4Rs9cJDLbpEG8i7hPK"
"swcFdsn6MWwINP+Nwmw4AEPpVJevUEvRQbqVMVoLlw==";
/*
* Checkup routine
*/
int mbedtls_base64_self_test( int verbose )
{
size_t len;
const unsigned char *src;
unsigned char buffer[128];
if( verbose != 0 )
mbedtls_printf( " Base64 encoding test: " );
src = base64_test_dec;
if( mbedtls_base64_encode( buffer, sizeof( buffer ), &len, src, 64 ) != 0 ||
memcmp( base64_test_enc, buffer, 88 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( 1 );
}
if( verbose != 0 )
mbedtls_printf( "passed\n Base64 decoding test: " );
src = base64_test_enc;
if( mbedtls_base64_decode( buffer, sizeof( buffer ), &len, src, 88 ) != 0 ||
memcmp( base64_test_dec, buffer, 64 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( 1 );
}
if( verbose != 0 )
mbedtls_printf( "passed\n\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_BASE64_C */

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/*
* NIST SP800-38C compliant CCM implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Definition of CCM:
* http://csrc.nist.gov/publications/nistpubs/800-38C/SP800-38C_updated-July20_2007.pdf
* RFC 3610 "Counter with CBC-MAC (CCM)"
*
* Related:
* RFC 5116 "An Interface and Algorithms for Authenticated Encryption"
*/
#include "common.h"
#if defined(MBEDTLS_CCM_C)
#include "mbedtls/ccm.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#if !defined(MBEDTLS_CCM_ALT)
#define CCM_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CCM_BAD_INPUT )
#define CCM_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#define CCM_ENCRYPT 0
#define CCM_DECRYPT 1
/*
* Initialize context
*/
void mbedtls_ccm_init( mbedtls_ccm_context *ctx )
{
CCM_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_ccm_context ) );
}
int mbedtls_ccm_setkey( mbedtls_ccm_context *ctx,
mbedtls_cipher_id_t cipher,
const unsigned char *key,
unsigned int keybits )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const mbedtls_cipher_info_t *cipher_info;
CCM_VALIDATE_RET( ctx != NULL );
CCM_VALIDATE_RET( key != NULL );
cipher_info = mbedtls_cipher_info_from_values( cipher, keybits,
MBEDTLS_MODE_ECB );
if( cipher_info == NULL )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
if( cipher_info->block_size != 16 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
mbedtls_cipher_free( &ctx->cipher_ctx );
if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
return( ret );
if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
MBEDTLS_ENCRYPT ) ) != 0 )
{
return( ret );
}
return( 0 );
}
/*
* Free context
*/
void mbedtls_ccm_free( mbedtls_ccm_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_cipher_free( &ctx->cipher_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ccm_context ) );
}
/*
* Macros for common operations.
* Results in smaller compiled code than static inline functions.
*/
/*
* Update the CBC-MAC state in y using a block in b
* (Always using b as the source helps the compiler optimise a bit better.)
*/
#define UPDATE_CBC_MAC \
for( i = 0; i < 16; i++ ) \
y[i] ^= b[i]; \
\
if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, y, 16, y, &olen ) ) != 0 ) \
return( ret );
/*
* Encrypt or decrypt a partial block with CTR
* Warning: using b for temporary storage! src and dst must not be b!
* This avoids allocating one more 16 bytes buffer while allowing src == dst.
*/
#define CTR_CRYPT( dst, src, len ) \
do \
{ \
if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctr, \
16, b, &olen ) ) != 0 ) \
{ \
return( ret ); \
} \
\
for( i = 0; i < (len); i++ ) \
(dst)[i] = (src)[i] ^ b[i]; \
} while( 0 )
/*
* Authenticated encryption or decryption
*/
static int ccm_auth_crypt( mbedtls_ccm_context *ctx, int mode, size_t length,
const unsigned char *iv, size_t iv_len,
const unsigned char *add, size_t add_len,
const unsigned char *input, unsigned char *output,
unsigned char *tag, size_t tag_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char i;
unsigned char q;
size_t len_left, olen;
unsigned char b[16];
unsigned char y[16];
unsigned char ctr[16];
const unsigned char *src;
unsigned char *dst;
/*
* Check length requirements: SP800-38C A.1
* Additional requirement: a < 2^16 - 2^8 to simplify the code.
* 'length' checked later (when writing it to the first block)
*
* Also, loosen the requirements to enable support for CCM* (IEEE 802.15.4).
*/
if( tag_len == 2 || tag_len > 16 || tag_len % 2 != 0 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
/* Also implies q is within bounds */
if( iv_len < 7 || iv_len > 13 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
if( add_len > 0xFF00 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
q = 16 - 1 - (unsigned char) iv_len;
/*
* First block B_0:
* 0 .. 0 flags
* 1 .. iv_len nonce (aka iv)
* iv_len+1 .. 15 length
*
* With flags as (bits):
* 7 0
* 6 add present?
* 5 .. 3 (t - 2) / 2
* 2 .. 0 q - 1
*/
b[0] = 0;
b[0] |= ( add_len > 0 ) << 6;
b[0] |= ( ( tag_len - 2 ) / 2 ) << 3;
b[0] |= q - 1;
memcpy( b + 1, iv, iv_len );
for( i = 0, len_left = length; i < q; i++, len_left >>= 8 )
b[15-i] = (unsigned char)( len_left & 0xFF );
if( len_left > 0 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
/* Start CBC-MAC with first block */
memset( y, 0, 16 );
UPDATE_CBC_MAC;
/*
* If there is additional data, update CBC-MAC with
* add_len, add, 0 (padding to a block boundary)
*/
if( add_len > 0 )
{
size_t use_len;
len_left = add_len;
src = add;
memset( b, 0, 16 );
b[0] = (unsigned char)( ( add_len >> 8 ) & 0xFF );
b[1] = (unsigned char)( ( add_len ) & 0xFF );
use_len = len_left < 16 - 2 ? len_left : 16 - 2;
memcpy( b + 2, src, use_len );
len_left -= use_len;
src += use_len;
UPDATE_CBC_MAC;
while( len_left > 0 )
{
use_len = len_left > 16 ? 16 : len_left;
memset( b, 0, 16 );
memcpy( b, src, use_len );
UPDATE_CBC_MAC;
len_left -= use_len;
src += use_len;
}
}
/*
* Prepare counter block for encryption:
* 0 .. 0 flags
* 1 .. iv_len nonce (aka iv)
* iv_len+1 .. 15 counter (initially 1)
*
* With flags as (bits):
* 7 .. 3 0
* 2 .. 0 q - 1
*/
ctr[0] = q - 1;
memcpy( ctr + 1, iv, iv_len );
memset( ctr + 1 + iv_len, 0, q );
ctr[15] = 1;
/*
* Authenticate and {en,de}crypt the message.
*
* The only difference between encryption and decryption is
* the respective order of authentication and {en,de}cryption.
*/
len_left = length;
src = input;
dst = output;
while( len_left > 0 )
{
size_t use_len = len_left > 16 ? 16 : len_left;
if( mode == CCM_ENCRYPT )
{
memset( b, 0, 16 );
memcpy( b, src, use_len );
UPDATE_CBC_MAC;
}
CTR_CRYPT( dst, src, use_len );
if( mode == CCM_DECRYPT )
{
memset( b, 0, 16 );
memcpy( b, dst, use_len );
UPDATE_CBC_MAC;
}
dst += use_len;
src += use_len;
len_left -= use_len;
/*
* Increment counter.
* No need to check for overflow thanks to the length check above.
*/
for( i = 0; i < q; i++ )
if( ++ctr[15-i] != 0 )
break;
}
/*
* Authentication: reset counter and crypt/mask internal tag
*/
for( i = 0; i < q; i++ )
ctr[15-i] = 0;
CTR_CRYPT( y, y, 16 );
memcpy( tag, y, tag_len );
return( 0 );
}
/*
* Authenticated encryption
*/
int mbedtls_ccm_star_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
const unsigned char *iv, size_t iv_len,
const unsigned char *add, size_t add_len,
const unsigned char *input, unsigned char *output,
unsigned char *tag, size_t tag_len )
{
CCM_VALIDATE_RET( ctx != NULL );
CCM_VALIDATE_RET( iv != NULL );
CCM_VALIDATE_RET( add_len == 0 || add != NULL );
CCM_VALIDATE_RET( length == 0 || input != NULL );
CCM_VALIDATE_RET( length == 0 || output != NULL );
CCM_VALIDATE_RET( tag_len == 0 || tag != NULL );
return( ccm_auth_crypt( ctx, CCM_ENCRYPT, length, iv, iv_len,
add, add_len, input, output, tag, tag_len ) );
}
int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
const unsigned char *iv, size_t iv_len,
const unsigned char *add, size_t add_len,
const unsigned char *input, unsigned char *output,
unsigned char *tag, size_t tag_len )
{
CCM_VALIDATE_RET( ctx != NULL );
CCM_VALIDATE_RET( iv != NULL );
CCM_VALIDATE_RET( add_len == 0 || add != NULL );
CCM_VALIDATE_RET( length == 0 || input != NULL );
CCM_VALIDATE_RET( length == 0 || output != NULL );
CCM_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( tag_len == 0 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
return( mbedtls_ccm_star_encrypt_and_tag( ctx, length, iv, iv_len, add,
add_len, input, output, tag, tag_len ) );
}
/*
* Authenticated decryption
*/
int mbedtls_ccm_star_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
const unsigned char *iv, size_t iv_len,
const unsigned char *add, size_t add_len,
const unsigned char *input, unsigned char *output,
const unsigned char *tag, size_t tag_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char check_tag[16];
unsigned char i;
int diff;
CCM_VALIDATE_RET( ctx != NULL );
CCM_VALIDATE_RET( iv != NULL );
CCM_VALIDATE_RET( add_len == 0 || add != NULL );
CCM_VALIDATE_RET( length == 0 || input != NULL );
CCM_VALIDATE_RET( length == 0 || output != NULL );
CCM_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( ( ret = ccm_auth_crypt( ctx, CCM_DECRYPT, length,
iv, iv_len, add, add_len,
input, output, check_tag, tag_len ) ) != 0 )
{
return( ret );
}
/* Check tag in "constant-time" */
for( diff = 0, i = 0; i < tag_len; i++ )
diff |= tag[i] ^ check_tag[i];
if( diff != 0 )
{
mbedtls_platform_zeroize( output, length );
return( MBEDTLS_ERR_CCM_AUTH_FAILED );
}
return( 0 );
}
int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
const unsigned char *iv, size_t iv_len,
const unsigned char *add, size_t add_len,
const unsigned char *input, unsigned char *output,
const unsigned char *tag, size_t tag_len )
{
CCM_VALIDATE_RET( ctx != NULL );
CCM_VALIDATE_RET( iv != NULL );
CCM_VALIDATE_RET( add_len == 0 || add != NULL );
CCM_VALIDATE_RET( length == 0 || input != NULL );
CCM_VALIDATE_RET( length == 0 || output != NULL );
CCM_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( tag_len == 0 )
return( MBEDTLS_ERR_CCM_BAD_INPUT );
return( mbedtls_ccm_star_auth_decrypt( ctx, length, iv, iv_len, add,
add_len, input, output, tag, tag_len ) );
}
#endif /* !MBEDTLS_CCM_ALT */
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
/*
* Examples 1 to 3 from SP800-38C Appendix C
*/
#define NB_TESTS 3
#define CCM_SELFTEST_PT_MAX_LEN 24
#define CCM_SELFTEST_CT_MAX_LEN 32
/*
* The data is the same for all tests, only the used length changes
*/
static const unsigned char key_test_data[] = {
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
};
static const unsigned char iv_test_data[] = {
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b
};
static const unsigned char ad_test_data[] = {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13
};
static const unsigned char msg_test_data[CCM_SELFTEST_PT_MAX_LEN] = {
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
};
static const size_t iv_len_test_data [NB_TESTS] = { 7, 8, 12 };
static const size_t add_len_test_data[NB_TESTS] = { 8, 16, 20 };
static const size_t msg_len_test_data[NB_TESTS] = { 4, 16, 24 };
static const size_t tag_len_test_data[NB_TESTS] = { 4, 6, 8 };
static const unsigned char res_test_data[NB_TESTS][CCM_SELFTEST_CT_MAX_LEN] = {
{ 0x71, 0x62, 0x01, 0x5b, 0x4d, 0xac, 0x25, 0x5d },
{ 0xd2, 0xa1, 0xf0, 0xe0, 0x51, 0xea, 0x5f, 0x62,
0x08, 0x1a, 0x77, 0x92, 0x07, 0x3d, 0x59, 0x3d,
0x1f, 0xc6, 0x4f, 0xbf, 0xac, 0xcd },
{ 0xe3, 0xb2, 0x01, 0xa9, 0xf5, 0xb7, 0x1a, 0x7a,
0x9b, 0x1c, 0xea, 0xec, 0xcd, 0x97, 0xe7, 0x0b,
0x61, 0x76, 0xaa, 0xd9, 0xa4, 0x42, 0x8a, 0xa5,
0x48, 0x43, 0x92, 0xfb, 0xc1, 0xb0, 0x99, 0x51 }
};
int mbedtls_ccm_self_test( int verbose )
{
mbedtls_ccm_context ctx;
/*
* Some hardware accelerators require the input and output buffers
* would be in RAM, because the flash is not accessible.
* Use buffers on the stack to hold the test vectors data.
*/
unsigned char plaintext[CCM_SELFTEST_PT_MAX_LEN];
unsigned char ciphertext[CCM_SELFTEST_CT_MAX_LEN];
size_t i;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ccm_init( &ctx );
if( mbedtls_ccm_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, key_test_data,
8 * sizeof key_test_data ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( " CCM: setup failed" );
return( 1 );
}
for( i = 0; i < NB_TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " CCM-AES #%u: ", (unsigned int) i + 1 );
memset( plaintext, 0, CCM_SELFTEST_PT_MAX_LEN );
memset( ciphertext, 0, CCM_SELFTEST_CT_MAX_LEN );
memcpy( plaintext, msg_test_data, msg_len_test_data[i] );
ret = mbedtls_ccm_encrypt_and_tag( &ctx, msg_len_test_data[i],
iv_test_data, iv_len_test_data[i],
ad_test_data, add_len_test_data[i],
plaintext, ciphertext,
ciphertext + msg_len_test_data[i],
tag_len_test_data[i] );
if( ret != 0 ||
memcmp( ciphertext, res_test_data[i],
msg_len_test_data[i] + tag_len_test_data[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( 1 );
}
memset( plaintext, 0, CCM_SELFTEST_PT_MAX_LEN );
ret = mbedtls_ccm_auth_decrypt( &ctx, msg_len_test_data[i],
iv_test_data, iv_len_test_data[i],
ad_test_data, add_len_test_data[i],
ciphertext, plaintext,
ciphertext + msg_len_test_data[i],
tag_len_test_data[i] );
if( ret != 0 ||
memcmp( plaintext, msg_test_data, msg_len_test_data[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( 1 );
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
mbedtls_ccm_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#endif /* MBEDTLS_CCM_C */

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/**
* \file chachapoly.c
*
* \brief ChaCha20-Poly1305 AEAD construction based on RFC 7539.
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_CHACHAPOLY_C)
#include "mbedtls/chachapoly.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_CHACHAPOLY_ALT)
/* Parameter validation macros */
#define CHACHAPOLY_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA )
#define CHACHAPOLY_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#define CHACHAPOLY_STATE_INIT ( 0 )
#define CHACHAPOLY_STATE_AAD ( 1 )
#define CHACHAPOLY_STATE_CIPHERTEXT ( 2 ) /* Encrypting or decrypting */
#define CHACHAPOLY_STATE_FINISHED ( 3 )
/**
* \brief Adds nul bytes to pad the AAD for Poly1305.
*
* \param ctx The ChaCha20-Poly1305 context.
*/
static int chachapoly_pad_aad( mbedtls_chachapoly_context *ctx )
{
uint32_t partial_block_len = (uint32_t) ( ctx->aad_len % 16U );
unsigned char zeroes[15];
if( partial_block_len == 0U )
return( 0 );
memset( zeroes, 0, sizeof( zeroes ) );
return( mbedtls_poly1305_update( &ctx->poly1305_ctx,
zeroes,
16U - partial_block_len ) );
}
/**
* \brief Adds nul bytes to pad the ciphertext for Poly1305.
*
* \param ctx The ChaCha20-Poly1305 context.
*/
static int chachapoly_pad_ciphertext( mbedtls_chachapoly_context *ctx )
{
uint32_t partial_block_len = (uint32_t) ( ctx->ciphertext_len % 16U );
unsigned char zeroes[15];
if( partial_block_len == 0U )
return( 0 );
memset( zeroes, 0, sizeof( zeroes ) );
return( mbedtls_poly1305_update( &ctx->poly1305_ctx,
zeroes,
16U - partial_block_len ) );
}
void mbedtls_chachapoly_init( mbedtls_chachapoly_context *ctx )
{
CHACHAPOLY_VALIDATE( ctx != NULL );
mbedtls_chacha20_init( &ctx->chacha20_ctx );
mbedtls_poly1305_init( &ctx->poly1305_ctx );
ctx->aad_len = 0U;
ctx->ciphertext_len = 0U;
ctx->state = CHACHAPOLY_STATE_INIT;
ctx->mode = MBEDTLS_CHACHAPOLY_ENCRYPT;
}
void mbedtls_chachapoly_free( mbedtls_chachapoly_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_chacha20_free( &ctx->chacha20_ctx );
mbedtls_poly1305_free( &ctx->poly1305_ctx );
ctx->aad_len = 0U;
ctx->ciphertext_len = 0U;
ctx->state = CHACHAPOLY_STATE_INIT;
ctx->mode = MBEDTLS_CHACHAPOLY_ENCRYPT;
}
int mbedtls_chachapoly_setkey( mbedtls_chachapoly_context *ctx,
const unsigned char key[32] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( key != NULL );
ret = mbedtls_chacha20_setkey( &ctx->chacha20_ctx, key );
return( ret );
}
int mbedtls_chachapoly_starts( mbedtls_chachapoly_context *ctx,
const unsigned char nonce[12],
mbedtls_chachapoly_mode_t mode )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char poly1305_key[64];
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( nonce != NULL );
/* Set counter = 0, will be update to 1 when generating Poly1305 key */
ret = mbedtls_chacha20_starts( &ctx->chacha20_ctx, nonce, 0U );
if( ret != 0 )
goto cleanup;
/* Generate the Poly1305 key by getting the ChaCha20 keystream output with
* counter = 0. This is the same as encrypting a buffer of zeroes.
* Only the first 256-bits (32 bytes) of the key is used for Poly1305.
* The other 256 bits are discarded.
*/
memset( poly1305_key, 0, sizeof( poly1305_key ) );
ret = mbedtls_chacha20_update( &ctx->chacha20_ctx, sizeof( poly1305_key ),
poly1305_key, poly1305_key );
if( ret != 0 )
goto cleanup;
ret = mbedtls_poly1305_starts( &ctx->poly1305_ctx, poly1305_key );
if( ret == 0 )
{
ctx->aad_len = 0U;
ctx->ciphertext_len = 0U;
ctx->state = CHACHAPOLY_STATE_AAD;
ctx->mode = mode;
}
cleanup:
mbedtls_platform_zeroize( poly1305_key, 64U );
return( ret );
}
int mbedtls_chachapoly_update_aad( mbedtls_chachapoly_context *ctx,
const unsigned char *aad,
size_t aad_len )
{
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( aad_len == 0 || aad != NULL );
if( ctx->state != CHACHAPOLY_STATE_AAD )
return( MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
ctx->aad_len += aad_len;
return( mbedtls_poly1305_update( &ctx->poly1305_ctx, aad, aad_len ) );
}
int mbedtls_chachapoly_update( mbedtls_chachapoly_context *ctx,
size_t len,
const unsigned char *input,
unsigned char *output )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( len == 0 || input != NULL );
CHACHAPOLY_VALIDATE_RET( len == 0 || output != NULL );
if( ( ctx->state != CHACHAPOLY_STATE_AAD ) &&
( ctx->state != CHACHAPOLY_STATE_CIPHERTEXT ) )
{
return( MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
}
if( ctx->state == CHACHAPOLY_STATE_AAD )
{
ctx->state = CHACHAPOLY_STATE_CIPHERTEXT;
ret = chachapoly_pad_aad( ctx );
if( ret != 0 )
return( ret );
}
ctx->ciphertext_len += len;
if( ctx->mode == MBEDTLS_CHACHAPOLY_ENCRYPT )
{
ret = mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output );
if( ret != 0 )
return( ret );
ret = mbedtls_poly1305_update( &ctx->poly1305_ctx, output, len );
if( ret != 0 )
return( ret );
}
else /* DECRYPT */
{
ret = mbedtls_poly1305_update( &ctx->poly1305_ctx, input, len );
if( ret != 0 )
return( ret );
ret = mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output );
if( ret != 0 )
return( ret );
}
return( 0 );
}
int mbedtls_chachapoly_finish( mbedtls_chachapoly_context *ctx,
unsigned char mac[16] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char len_block[16];
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( mac != NULL );
if( ctx->state == CHACHAPOLY_STATE_INIT )
{
return( MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
}
if( ctx->state == CHACHAPOLY_STATE_AAD )
{
ret = chachapoly_pad_aad( ctx );
if( ret != 0 )
return( ret );
}
else if( ctx->state == CHACHAPOLY_STATE_CIPHERTEXT )
{
ret = chachapoly_pad_ciphertext( ctx );
if( ret != 0 )
return( ret );
}
ctx->state = CHACHAPOLY_STATE_FINISHED;
/* The lengths of the AAD and ciphertext are processed by
* Poly1305 as the final 128-bit block, encoded as little-endian integers.
*/
len_block[ 0] = (unsigned char)( ctx->aad_len );
len_block[ 1] = (unsigned char)( ctx->aad_len >> 8 );
len_block[ 2] = (unsigned char)( ctx->aad_len >> 16 );
len_block[ 3] = (unsigned char)( ctx->aad_len >> 24 );
len_block[ 4] = (unsigned char)( ctx->aad_len >> 32 );
len_block[ 5] = (unsigned char)( ctx->aad_len >> 40 );
len_block[ 6] = (unsigned char)( ctx->aad_len >> 48 );
len_block[ 7] = (unsigned char)( ctx->aad_len >> 56 );
len_block[ 8] = (unsigned char)( ctx->ciphertext_len );
len_block[ 9] = (unsigned char)( ctx->ciphertext_len >> 8 );
len_block[10] = (unsigned char)( ctx->ciphertext_len >> 16 );
len_block[11] = (unsigned char)( ctx->ciphertext_len >> 24 );
len_block[12] = (unsigned char)( ctx->ciphertext_len >> 32 );
len_block[13] = (unsigned char)( ctx->ciphertext_len >> 40 );
len_block[14] = (unsigned char)( ctx->ciphertext_len >> 48 );
len_block[15] = (unsigned char)( ctx->ciphertext_len >> 56 );
ret = mbedtls_poly1305_update( &ctx->poly1305_ctx, len_block, 16U );
if( ret != 0 )
return( ret );
ret = mbedtls_poly1305_finish( &ctx->poly1305_ctx, mac );
return( ret );
}
static int chachapoly_crypt_and_tag( mbedtls_chachapoly_context *ctx,
mbedtls_chachapoly_mode_t mode,
size_t length,
const unsigned char nonce[12],
const unsigned char *aad,
size_t aad_len,
const unsigned char *input,
unsigned char *output,
unsigned char tag[16] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
ret = mbedtls_chachapoly_starts( ctx, nonce, mode );
if( ret != 0 )
goto cleanup;
ret = mbedtls_chachapoly_update_aad( ctx, aad, aad_len );
if( ret != 0 )
goto cleanup;
ret = mbedtls_chachapoly_update( ctx, length, input, output );
if( ret != 0 )
goto cleanup;
ret = mbedtls_chachapoly_finish( ctx, tag );
cleanup:
return( ret );
}
int mbedtls_chachapoly_encrypt_and_tag( mbedtls_chachapoly_context *ctx,
size_t length,
const unsigned char nonce[12],
const unsigned char *aad,
size_t aad_len,
const unsigned char *input,
unsigned char *output,
unsigned char tag[16] )
{
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( nonce != NULL );
CHACHAPOLY_VALIDATE_RET( tag != NULL );
CHACHAPOLY_VALIDATE_RET( aad_len == 0 || aad != NULL );
CHACHAPOLY_VALIDATE_RET( length == 0 || input != NULL );
CHACHAPOLY_VALIDATE_RET( length == 0 || output != NULL );
return( chachapoly_crypt_and_tag( ctx, MBEDTLS_CHACHAPOLY_ENCRYPT,
length, nonce, aad, aad_len,
input, output, tag ) );
}
int mbedtls_chachapoly_auth_decrypt( mbedtls_chachapoly_context *ctx,
size_t length,
const unsigned char nonce[12],
const unsigned char *aad,
size_t aad_len,
const unsigned char tag[16],
const unsigned char *input,
unsigned char *output )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char check_tag[16];
size_t i;
int diff;
CHACHAPOLY_VALIDATE_RET( ctx != NULL );
CHACHAPOLY_VALIDATE_RET( nonce != NULL );
CHACHAPOLY_VALIDATE_RET( tag != NULL );
CHACHAPOLY_VALIDATE_RET( aad_len == 0 || aad != NULL );
CHACHAPOLY_VALIDATE_RET( length == 0 || input != NULL );
CHACHAPOLY_VALIDATE_RET( length == 0 || output != NULL );
if( ( ret = chachapoly_crypt_and_tag( ctx,
MBEDTLS_CHACHAPOLY_DECRYPT, length, nonce,
aad, aad_len, input, output, check_tag ) ) != 0 )
{
return( ret );
}
/* Check tag in "constant-time" */
for( diff = 0, i = 0; i < sizeof( check_tag ); i++ )
diff |= tag[i] ^ check_tag[i];
if( diff != 0 )
{
mbedtls_platform_zeroize( output, length );
return( MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED );
}
return( 0 );
}
#endif /* MBEDTLS_CHACHAPOLY_ALT */
#if defined(MBEDTLS_SELF_TEST)
static const unsigned char test_key[1][32] =
{
{
0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f
}
};
static const unsigned char test_nonce[1][12] =
{
{
0x07, 0x00, 0x00, 0x00, /* 32-bit common part */
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 /* 64-bit IV */
}
};
static const unsigned char test_aad[1][12] =
{
{
0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3,
0xc4, 0xc5, 0xc6, 0xc7
}
};
static const size_t test_aad_len[1] =
{
12U
};
static const unsigned char test_input[1][114] =
{
{
0x4c, 0x61, 0x64, 0x69, 0x65, 0x73, 0x20, 0x61,
0x6e, 0x64, 0x20, 0x47, 0x65, 0x6e, 0x74, 0x6c,
0x65, 0x6d, 0x65, 0x6e, 0x20, 0x6f, 0x66, 0x20,
0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x61, 0x73,
0x73, 0x20, 0x6f, 0x66, 0x20, 0x27, 0x39, 0x39,
0x3a, 0x20, 0x49, 0x66, 0x20, 0x49, 0x20, 0x63,
0x6f, 0x75, 0x6c, 0x64, 0x20, 0x6f, 0x66, 0x66,
0x65, 0x72, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6f,
0x6e, 0x6c, 0x79, 0x20, 0x6f, 0x6e, 0x65, 0x20,
0x74, 0x69, 0x70, 0x20, 0x66, 0x6f, 0x72, 0x20,
0x74, 0x68, 0x65, 0x20, 0x66, 0x75, 0x74, 0x75,
0x72, 0x65, 0x2c, 0x20, 0x73, 0x75, 0x6e, 0x73,
0x63, 0x72, 0x65, 0x65, 0x6e, 0x20, 0x77, 0x6f,
0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x69,
0x74, 0x2e
}
};
static const unsigned char test_output[1][114] =
{
{
0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb,
0x7b, 0x86, 0xaf, 0xbc, 0x53, 0xef, 0x7e, 0xc2,
0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe,
0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6,
0x3d, 0xbe, 0xa4, 0x5e, 0x8c, 0xa9, 0x67, 0x12,
0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b,
0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29,
0x05, 0xd6, 0xa5, 0xb6, 0x7e, 0xcd, 0x3b, 0x36,
0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c,
0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58,
0xfa, 0xb3, 0x24, 0xe4, 0xfa, 0xd6, 0x75, 0x94,
0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc,
0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d,
0xe5, 0x76, 0xd2, 0x65, 0x86, 0xce, 0xc6, 0x4b,
0x61, 0x16
}
};
static const size_t test_input_len[1] =
{
114U
};
static const unsigned char test_mac[1][16] =
{
{
0x1a, 0xe1, 0x0b, 0x59, 0x4f, 0x09, 0xe2, 0x6a,
0x7e, 0x90, 0x2e, 0xcb, 0xd0, 0x60, 0x06, 0x91
}
};
/* Make sure no other definition is already present. */
#undef ASSERT
#define ASSERT( cond, args ) \
do \
{ \
if( ! ( cond ) ) \
{ \
if( verbose != 0 ) \
mbedtls_printf args; \
\
return( -1 ); \
} \
} \
while( 0 )
int mbedtls_chachapoly_self_test( int verbose )
{
mbedtls_chachapoly_context ctx;
unsigned i;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char output[200];
unsigned char mac[16];
for( i = 0U; i < 1U; i++ )
{
if( verbose != 0 )
mbedtls_printf( " ChaCha20-Poly1305 test %u ", i );
mbedtls_chachapoly_init( &ctx );
ret = mbedtls_chachapoly_setkey( &ctx, test_key[i] );
ASSERT( 0 == ret, ( "setkey() error code: %i\n", ret ) );
ret = mbedtls_chachapoly_encrypt_and_tag( &ctx,
test_input_len[i],
test_nonce[i],
test_aad[i],
test_aad_len[i],
test_input[i],
output,
mac );
ASSERT( 0 == ret, ( "crypt_and_tag() error code: %i\n", ret ) );
ASSERT( 0 == memcmp( output, test_output[i], test_input_len[i] ),
( "failure (wrong output)\n" ) );
ASSERT( 0 == memcmp( mac, test_mac[i], 16U ),
( "failure (wrong MAC)\n" ) );
mbedtls_chachapoly_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_CHACHAPOLY_C */

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@@ -1,53 +0,0 @@
/**
* \file common.h
*
* \brief Utility macros for internal use in the library
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBEDTLS_LIBRARY_COMMON_H
#define MBEDTLS_LIBRARY_COMMON_H
#if defined(MBEDTLS_CONFIG_FILE)
#include MBEDTLS_CONFIG_FILE
#else
#include "mbedtls/config.h"
#endif
/** Helper to define a function as static except when building invasive tests.
*
* If a function is only used inside its own source file and should be
* declared `static` to allow the compiler to optimize for code size,
* but that function has unit tests, define it with
* ```
* MBEDTLS_STATIC_TESTABLE int mbedtls_foo(...) { ... }
* ```
* and declare it in a header in the `library/` directory with
* ```
* #if defined(MBEDTLS_TEST_HOOKS)
* int mbedtls_foo(...);
* #endif
* ```
*/
#if defined(MBEDTLS_TEST_HOOKS)
#define MBEDTLS_STATIC_TESTABLE
#else
#define MBEDTLS_STATIC_TESTABLE static
#endif
#endif /* MBEDTLS_LIBRARY_COMMON_H */

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@@ -1,810 +0,0 @@
/*
* CTR_DRBG implementation based on AES-256 (NIST SP 800-90)
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The NIST SP 800-90 DRBGs are described in the following publication.
*
* http://csrc.nist.gov/publications/nistpubs/800-90/SP800-90revised_March2007.pdf
*/
#include "common.h"
#if defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/ctr_drbg.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
/*
* CTR_DRBG context initialization
*/
void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_ctr_drbg_context ) );
/* Indicate that the entropy nonce length is not set explicitly.
* See mbedtls_ctr_drbg_set_nonce_len(). */
ctx->reseed_counter = -1;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx )
{
if( ctx == NULL )
return;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_aes_free( &ctx->aes_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ctr_drbg_context ) );
}
void mbedtls_ctr_drbg_set_prediction_resistance( mbedtls_ctr_drbg_context *ctx,
int resistance )
{
ctx->prediction_resistance = resistance;
}
void mbedtls_ctr_drbg_set_entropy_len( mbedtls_ctr_drbg_context *ctx,
size_t len )
{
ctx->entropy_len = len;
}
int mbedtls_ctr_drbg_set_nonce_len( mbedtls_ctr_drbg_context *ctx,
size_t len )
{
/* If mbedtls_ctr_drbg_seed() has already been called, it's
* too late. Return the error code that's closest to making sense. */
if( ctx->f_entropy != NULL )
return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
if( len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
#if SIZE_MAX > INT_MAX
/* This shouldn't be an issue because
* MBEDTLS_CTR_DRBG_MAX_SEED_INPUT < INT_MAX in any sensible
* configuration, but make sure anyway. */
if( len > INT_MAX )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
#endif
/* For backward compatibility with Mbed TLS <= 2.19, store the
* entropy nonce length in a field that already exists, but isn't
* used until after the initial seeding. */
/* Due to the capping of len above, the value fits in an int. */
ctx->reseed_counter = (int) len;
return( 0 );
}
void mbedtls_ctr_drbg_set_reseed_interval( mbedtls_ctr_drbg_context *ctx,
int interval )
{
ctx->reseed_interval = interval;
}
static int block_cipher_df( unsigned char *output,
const unsigned char *data, size_t data_len )
{
unsigned char buf[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
MBEDTLS_CTR_DRBG_BLOCKSIZE + 16];
unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
unsigned char chain[MBEDTLS_CTR_DRBG_BLOCKSIZE];
unsigned char *p, *iv;
mbedtls_aes_context aes_ctx;
int ret = 0;
int i, j;
size_t buf_len, use_len;
if( data_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
memset( buf, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT +
MBEDTLS_CTR_DRBG_BLOCKSIZE + 16 );
mbedtls_aes_init( &aes_ctx );
/*
* Construct IV (16 bytes) and S in buffer
* IV = Counter (in 32-bits) padded to 16 with zeroes
* S = Length input string (in 32-bits) || Length of output (in 32-bits) ||
* data || 0x80
* (Total is padded to a multiple of 16-bytes with zeroes)
*/
p = buf + MBEDTLS_CTR_DRBG_BLOCKSIZE;
*p++ = ( data_len >> 24 ) & 0xff;
*p++ = ( data_len >> 16 ) & 0xff;
*p++ = ( data_len >> 8 ) & 0xff;
*p++ = ( data_len ) & 0xff;
p += 3;
*p++ = MBEDTLS_CTR_DRBG_SEEDLEN;
memcpy( p, data, data_len );
p[data_len] = 0x80;
buf_len = MBEDTLS_CTR_DRBG_BLOCKSIZE + 8 + data_len + 1;
for( i = 0; i < MBEDTLS_CTR_DRBG_KEYSIZE; i++ )
key[i] = i;
if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, key,
MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
{
goto exit;
}
/*
* Reduce data to MBEDTLS_CTR_DRBG_SEEDLEN bytes of data
*/
for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
{
p = buf;
memset( chain, 0, MBEDTLS_CTR_DRBG_BLOCKSIZE );
use_len = buf_len;
while( use_len > 0 )
{
for( i = 0; i < MBEDTLS_CTR_DRBG_BLOCKSIZE; i++ )
chain[i] ^= p[i];
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
use_len -= ( use_len >= MBEDTLS_CTR_DRBG_BLOCKSIZE ) ?
MBEDTLS_CTR_DRBG_BLOCKSIZE : use_len;
if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT,
chain, chain ) ) != 0 )
{
goto exit;
}
}
memcpy( tmp + j, chain, MBEDTLS_CTR_DRBG_BLOCKSIZE );
/*
* Update IV
*/
buf[3]++;
}
/*
* Do final encryption with reduced data
*/
if( ( ret = mbedtls_aes_setkey_enc( &aes_ctx, tmp,
MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
{
goto exit;
}
iv = tmp + MBEDTLS_CTR_DRBG_KEYSIZE;
p = output;
for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
{
if( ( ret = mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT,
iv, iv ) ) != 0 )
{
goto exit;
}
memcpy( p, iv, MBEDTLS_CTR_DRBG_BLOCKSIZE );
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
}
exit:
mbedtls_aes_free( &aes_ctx );
/*
* tidy up the stack
*/
mbedtls_platform_zeroize( buf, sizeof( buf ) );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( chain, sizeof( chain ) );
if( 0 != ret )
{
/*
* wipe partial seed from memory
*/
mbedtls_platform_zeroize( output, MBEDTLS_CTR_DRBG_SEEDLEN );
}
return( ret );
}
/* CTR_DRBG_Update (SP 800-90A &sect;10.2.1.2)
* ctr_drbg_update_internal(ctx, provided_data)
* implements
* CTR_DRBG_Update(provided_data, Key, V)
* with inputs and outputs
* ctx->aes_ctx = Key
* ctx->counter = V
*/
static int ctr_drbg_update_internal( mbedtls_ctr_drbg_context *ctx,
const unsigned char data[MBEDTLS_CTR_DRBG_SEEDLEN] )
{
unsigned char tmp[MBEDTLS_CTR_DRBG_SEEDLEN];
unsigned char *p = tmp;
int i, j;
int ret = 0;
memset( tmp, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
for( j = 0; j < MBEDTLS_CTR_DRBG_SEEDLEN; j += MBEDTLS_CTR_DRBG_BLOCKSIZE )
{
/*
* Increase counter
*/
for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
if( ++ctx->counter[i - 1] != 0 )
break;
/*
* Crypt counter block
*/
if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
ctx->counter, p ) ) != 0 )
{
goto exit;
}
p += MBEDTLS_CTR_DRBG_BLOCKSIZE;
}
for( i = 0; i < MBEDTLS_CTR_DRBG_SEEDLEN; i++ )
tmp[i] ^= data[i];
/*
* Update key and counter
*/
if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, tmp,
MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
{
goto exit;
}
memcpy( ctx->counter, tmp + MBEDTLS_CTR_DRBG_KEYSIZE,
MBEDTLS_CTR_DRBG_BLOCKSIZE );
exit:
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
return( ret );
}
/* CTR_DRBG_Instantiate with derivation function (SP 800-90A &sect;10.2.1.3.2)
* mbedtls_ctr_drbg_update(ctx, additional, add_len)
* implements
* CTR_DRBG_Instantiate(entropy_input, nonce, personalization_string,
* security_strength) -> initial_working_state
* with inputs
* ctx->counter = all-bits-0
* ctx->aes_ctx = context from all-bits-0 key
* additional[:add_len] = entropy_input || nonce || personalization_string
* and with outputs
* ctx = initial_working_state
*/
int mbedtls_ctr_drbg_update_ret( mbedtls_ctr_drbg_context *ctx,
const unsigned char *additional,
size_t add_len )
{
unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( add_len == 0 )
return( 0 );
if( ( ret = block_cipher_df( add_input, additional, add_len ) ) != 0 )
goto exit;
if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
goto exit;
exit:
mbedtls_platform_zeroize( add_input, sizeof( add_input ) );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ctr_drbg_update( mbedtls_ctr_drbg_context *ctx,
const unsigned char *additional,
size_t add_len )
{
/* MAX_INPUT would be more logical here, but we have to match
* block_cipher_df()'s limits since we can't propagate errors */
if( add_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
add_len = MBEDTLS_CTR_DRBG_MAX_SEED_INPUT;
(void) mbedtls_ctr_drbg_update_ret( ctx, additional, add_len );
}
#endif /* MBEDTLS_DEPRECATED_REMOVED */
/* CTR_DRBG_Reseed with derivation function (SP 800-90A &sect;10.2.1.4.2)
* mbedtls_ctr_drbg_reseed(ctx, additional, len, nonce_len)
* implements
* CTR_DRBG_Reseed(working_state, entropy_input, additional_input)
* -> new_working_state
* with inputs
* ctx contains working_state
* additional[:len] = additional_input
* and entropy_input comes from calling ctx->f_entropy
* for (ctx->entropy_len + nonce_len) bytes
* and with output
* ctx contains new_working_state
*/
static int mbedtls_ctr_drbg_reseed_internal( mbedtls_ctr_drbg_context *ctx,
const unsigned char *additional,
size_t len,
size_t nonce_len )
{
unsigned char seed[MBEDTLS_CTR_DRBG_MAX_SEED_INPUT];
size_t seedlen = 0;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ctx->entropy_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
if( nonce_len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
if( len > MBEDTLS_CTR_DRBG_MAX_SEED_INPUT - ctx->entropy_len - nonce_len )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
memset( seed, 0, MBEDTLS_CTR_DRBG_MAX_SEED_INPUT );
/* Gather entropy_len bytes of entropy to seed state. */
if( 0 != ctx->f_entropy( ctx->p_entropy, seed, ctx->entropy_len ) )
{
return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
}
seedlen += ctx->entropy_len;
/* Gather entropy for a nonce if requested. */
if( nonce_len != 0 )
{
if( 0 != ctx->f_entropy( ctx->p_entropy, seed, nonce_len ) )
{
return( MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED );
}
seedlen += nonce_len;
}
/* Add additional data if provided. */
if( additional != NULL && len != 0 )
{
memcpy( seed + seedlen, additional, len );
seedlen += len;
}
/* Reduce to 384 bits. */
if( ( ret = block_cipher_df( seed, seed, seedlen ) ) != 0 )
goto exit;
/* Update state. */
if( ( ret = ctr_drbg_update_internal( ctx, seed ) ) != 0 )
goto exit;
ctx->reseed_counter = 1;
exit:
mbedtls_platform_zeroize( seed, sizeof( seed ) );
return( ret );
}
int mbedtls_ctr_drbg_reseed( mbedtls_ctr_drbg_context *ctx,
const unsigned char *additional, size_t len )
{
return( mbedtls_ctr_drbg_reseed_internal( ctx, additional, len, 0 ) );
}
/* Return a "good" nonce length for CTR_DRBG. The chosen nonce length
* is sufficient to achieve the maximum security strength given the key
* size and entropy length. If there is enough entropy in the initial
* call to the entropy function to serve as both the entropy input and
* the nonce, don't make a second call to get a nonce. */
static size_t good_nonce_len( size_t entropy_len )
{
if( entropy_len >= MBEDTLS_CTR_DRBG_KEYSIZE * 3 / 2 )
return( 0 );
else
return( ( entropy_len + 1 ) / 2 );
}
/* CTR_DRBG_Instantiate with derivation function (SP 800-90A &sect;10.2.1.3.2)
* mbedtls_ctr_drbg_seed(ctx, f_entropy, p_entropy, custom, len)
* implements
* CTR_DRBG_Instantiate(entropy_input, nonce, personalization_string,
* security_strength) -> initial_working_state
* with inputs
* custom[:len] = nonce || personalization_string
* where entropy_input comes from f_entropy for ctx->entropy_len bytes
* and with outputs
* ctx = initial_working_state
*/
int mbedtls_ctr_drbg_seed( mbedtls_ctr_drbg_context *ctx,
int (*f_entropy)(void *, unsigned char *, size_t),
void *p_entropy,
const unsigned char *custom,
size_t len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char key[MBEDTLS_CTR_DRBG_KEYSIZE];
size_t nonce_len;
memset( key, 0, MBEDTLS_CTR_DRBG_KEYSIZE );
mbedtls_aes_init( &ctx->aes_ctx );
ctx->f_entropy = f_entropy;
ctx->p_entropy = p_entropy;
if( ctx->entropy_len == 0 )
ctx->entropy_len = MBEDTLS_CTR_DRBG_ENTROPY_LEN;
/* ctx->reseed_counter contains the desired amount of entropy to
* grab for a nonce (see mbedtls_ctr_drbg_set_nonce_len()).
* If it's -1, indicating that the entropy nonce length was not set
* explicitly, use a sufficiently large nonce for security. */
nonce_len = ( ctx->reseed_counter >= 0 ?
(size_t) ctx->reseed_counter :
good_nonce_len( ctx->entropy_len ) );
ctx->reseed_interval = MBEDTLS_CTR_DRBG_RESEED_INTERVAL;
/* Initialize with an empty key. */
if( ( ret = mbedtls_aes_setkey_enc( &ctx->aes_ctx, key,
MBEDTLS_CTR_DRBG_KEYBITS ) ) != 0 )
{
return( ret );
}
/* Do the initial seeding. */
if( ( ret = mbedtls_ctr_drbg_reseed_internal( ctx, custom, len,
nonce_len ) ) != 0 )
{
return( ret );
}
return( 0 );
}
/* CTR_DRBG_Generate with derivation function (SP 800-90A &sect;10.2.1.5.2)
* mbedtls_ctr_drbg_random_with_add(ctx, output, output_len, additional, add_len)
* implements
* CTR_DRBG_Reseed(working_state, entropy_input, additional[:add_len])
* -> working_state_after_reseed
* if required, then
* CTR_DRBG_Generate(working_state_after_reseed,
* requested_number_of_bits, additional_input)
* -> status, returned_bits, new_working_state
* with inputs
* ctx contains working_state
* requested_number_of_bits = 8 * output_len
* additional[:add_len] = additional_input
* and entropy_input comes from calling ctx->f_entropy
* and with outputs
* status = SUCCESS (this function does the reseed internally)
* returned_bits = output[:output_len]
* ctx contains new_working_state
*/
int mbedtls_ctr_drbg_random_with_add( void *p_rng,
unsigned char *output, size_t output_len,
const unsigned char *additional, size_t add_len )
{
int ret = 0;
mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
unsigned char add_input[MBEDTLS_CTR_DRBG_SEEDLEN];
unsigned char *p = output;
unsigned char tmp[MBEDTLS_CTR_DRBG_BLOCKSIZE];
int i;
size_t use_len;
if( output_len > MBEDTLS_CTR_DRBG_MAX_REQUEST )
return( MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG );
if( add_len > MBEDTLS_CTR_DRBG_MAX_INPUT )
return( MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG );
memset( add_input, 0, MBEDTLS_CTR_DRBG_SEEDLEN );
if( ctx->reseed_counter > ctx->reseed_interval ||
ctx->prediction_resistance )
{
if( ( ret = mbedtls_ctr_drbg_reseed( ctx, additional, add_len ) ) != 0 )
{
return( ret );
}
add_len = 0;
}
if( add_len > 0 )
{
if( ( ret = block_cipher_df( add_input, additional, add_len ) ) != 0 )
goto exit;
if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
goto exit;
}
while( output_len > 0 )
{
/*
* Increase counter
*/
for( i = MBEDTLS_CTR_DRBG_BLOCKSIZE; i > 0; i-- )
if( ++ctx->counter[i - 1] != 0 )
break;
/*
* Crypt counter block
*/
if( ( ret = mbedtls_aes_crypt_ecb( &ctx->aes_ctx, MBEDTLS_AES_ENCRYPT,
ctx->counter, tmp ) ) != 0 )
{
goto exit;
}
use_len = ( output_len > MBEDTLS_CTR_DRBG_BLOCKSIZE )
? MBEDTLS_CTR_DRBG_BLOCKSIZE : output_len;
/*
* Copy random block to destination
*/
memcpy( p, tmp, use_len );
p += use_len;
output_len -= use_len;
}
if( ( ret = ctr_drbg_update_internal( ctx, add_input ) ) != 0 )
goto exit;
ctx->reseed_counter++;
exit:
mbedtls_platform_zeroize( add_input, sizeof( add_input ) );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
return( ret );
}
int mbedtls_ctr_drbg_random( void *p_rng, unsigned char *output,
size_t output_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ctr_drbg_context *ctx = (mbedtls_ctr_drbg_context *) p_rng;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = mbedtls_ctr_drbg_random_with_add( ctx, output, output_len, NULL, 0 );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
#if defined(MBEDTLS_FS_IO)
int mbedtls_ctr_drbg_write_seed_file( mbedtls_ctr_drbg_context *ctx,
const char *path )
{
int ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
FILE *f;
unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
if( ( f = fopen( path, "wb" ) ) == NULL )
return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR );
if( ( ret = mbedtls_ctr_drbg_random( ctx, buf,
MBEDTLS_CTR_DRBG_MAX_INPUT ) ) != 0 )
goto exit;
if( fwrite( buf, 1, MBEDTLS_CTR_DRBG_MAX_INPUT, f ) !=
MBEDTLS_CTR_DRBG_MAX_INPUT )
{
ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
}
else
{
ret = 0;
}
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
fclose( f );
return( ret );
}
int mbedtls_ctr_drbg_update_seed_file( mbedtls_ctr_drbg_context *ctx,
const char *path )
{
int ret = 0;
FILE *f = NULL;
size_t n;
unsigned char buf[ MBEDTLS_CTR_DRBG_MAX_INPUT ];
unsigned char c;
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR );
n = fread( buf, 1, sizeof( buf ), f );
if( fread( &c, 1, 1, f ) != 0 )
{
ret = MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG;
goto exit;
}
if( n == 0 || ferror( f ) )
{
ret = MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR;
goto exit;
}
fclose( f );
f = NULL;
ret = mbedtls_ctr_drbg_update_ret( ctx, buf, n );
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( f != NULL )
fclose( f );
if( ret != 0 )
return( ret );
return( mbedtls_ctr_drbg_write_seed_file( ctx, path ) );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
static const unsigned char entropy_source_pr[96] =
{ 0xc1, 0x80, 0x81, 0xa6, 0x5d, 0x44, 0x02, 0x16,
0x19, 0xb3, 0xf1, 0x80, 0xb1, 0xc9, 0x20, 0x02,
0x6a, 0x54, 0x6f, 0x0c, 0x70, 0x81, 0x49, 0x8b,
0x6e, 0xa6, 0x62, 0x52, 0x6d, 0x51, 0xb1, 0xcb,
0x58, 0x3b, 0xfa, 0xd5, 0x37, 0x5f, 0xfb, 0xc9,
0xff, 0x46, 0xd2, 0x19, 0xc7, 0x22, 0x3e, 0x95,
0x45, 0x9d, 0x82, 0xe1, 0xe7, 0x22, 0x9f, 0x63,
0x31, 0x69, 0xd2, 0x6b, 0x57, 0x47, 0x4f, 0xa3,
0x37, 0xc9, 0x98, 0x1c, 0x0b, 0xfb, 0x91, 0x31,
0x4d, 0x55, 0xb9, 0xe9, 0x1c, 0x5a, 0x5e, 0xe4,
0x93, 0x92, 0xcf, 0xc5, 0x23, 0x12, 0xd5, 0x56,
0x2c, 0x4a, 0x6e, 0xff, 0xdc, 0x10, 0xd0, 0x68 };
static const unsigned char entropy_source_nopr[64] =
{ 0x5a, 0x19, 0x4d, 0x5e, 0x2b, 0x31, 0x58, 0x14,
0x54, 0xde, 0xf6, 0x75, 0xfb, 0x79, 0x58, 0xfe,
0xc7, 0xdb, 0x87, 0x3e, 0x56, 0x89, 0xfc, 0x9d,
0x03, 0x21, 0x7c, 0x68, 0xd8, 0x03, 0x38, 0x20,
0xf9, 0xe6, 0x5e, 0x04, 0xd8, 0x56, 0xf3, 0xa9,
0xc4, 0x4a, 0x4c, 0xbd, 0xc1, 0xd0, 0x08, 0x46,
0xf5, 0x98, 0x3d, 0x77, 0x1c, 0x1b, 0x13, 0x7e,
0x4e, 0x0f, 0x9d, 0x8e, 0xf4, 0x09, 0xf9, 0x2e };
static const unsigned char nonce_pers_pr[16] =
{ 0xd2, 0x54, 0xfc, 0xff, 0x02, 0x1e, 0x69, 0xd2,
0x29, 0xc9, 0xcf, 0xad, 0x85, 0xfa, 0x48, 0x6c };
static const unsigned char nonce_pers_nopr[16] =
{ 0x1b, 0x54, 0xb8, 0xff, 0x06, 0x42, 0xbf, 0xf5,
0x21, 0xf1, 0x5c, 0x1c, 0x0b, 0x66, 0x5f, 0x3f };
#if defined(MBEDTLS_CTR_DRBG_USE_128_BIT_KEY)
static const unsigned char result_pr[16] =
{ 0x95, 0x3c, 0xa5, 0xbd, 0x44, 0x1, 0x34, 0xb7,
0x13, 0x58, 0x3e, 0x6a, 0x6c, 0x7e, 0x88, 0x8a };
static const unsigned char result_nopr[16] =
{ 0x6c, 0x25, 0x27, 0x95, 0xa3, 0x62, 0xd6, 0xdb,
0x90, 0xfd, 0x69, 0xb5, 0x42, 0x9, 0x4b, 0x84 };
#else /* MBEDTLS_CTR_DRBG_USE_128_BIT_KEY */
static const unsigned char result_pr[16] =
{ 0x34, 0x01, 0x16, 0x56, 0xb4, 0x29, 0x00, 0x8f,
0x35, 0x63, 0xec, 0xb5, 0xf2, 0x59, 0x07, 0x23 };
static const unsigned char result_nopr[16] =
{ 0xa0, 0x54, 0x30, 0x3d, 0x8a, 0x7e, 0xa9, 0x88,
0x9d, 0x90, 0x3e, 0x07, 0x7c, 0x6f, 0x21, 0x8f };
#endif /* MBEDTLS_CTR_DRBG_USE_128_BIT_KEY */
static size_t test_offset;
static int ctr_drbg_self_test_entropy( void *data, unsigned char *buf,
size_t len )
{
const unsigned char *p = data;
memcpy( buf, p + test_offset, len );
test_offset += len;
return( 0 );
}
#define CHK( c ) if( (c) != 0 ) \
{ \
if( verbose != 0 ) \
mbedtls_printf( "failed\n" ); \
return( 1 ); \
}
/*
* Checkup routine
*/
int mbedtls_ctr_drbg_self_test( int verbose )
{
mbedtls_ctr_drbg_context ctx;
unsigned char buf[16];
mbedtls_ctr_drbg_init( &ctx );
/*
* Based on a NIST CTR_DRBG test vector (PR = True)
*/
if( verbose != 0 )
mbedtls_printf( " CTR_DRBG (PR = TRUE) : " );
test_offset = 0;
mbedtls_ctr_drbg_set_entropy_len( &ctx, 32 );
mbedtls_ctr_drbg_set_nonce_len( &ctx, 0 );
CHK( mbedtls_ctr_drbg_seed( &ctx,
ctr_drbg_self_test_entropy,
(void *) entropy_source_pr,
nonce_pers_pr, 16 ) );
mbedtls_ctr_drbg_set_prediction_resistance( &ctx, MBEDTLS_CTR_DRBG_PR_ON );
CHK( mbedtls_ctr_drbg_random( &ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE ) );
CHK( mbedtls_ctr_drbg_random( &ctx, buf, MBEDTLS_CTR_DRBG_BLOCKSIZE ) );
CHK( memcmp( buf, result_pr, MBEDTLS_CTR_DRBG_BLOCKSIZE ) );
mbedtls_ctr_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
/*
* Based on a NIST CTR_DRBG test vector (PR = FALSE)
*/
if( verbose != 0 )
mbedtls_printf( " CTR_DRBG (PR = FALSE): " );
mbedtls_ctr_drbg_init( &ctx );
test_offset = 0;
mbedtls_ctr_drbg_set_entropy_len( &ctx, 32 );
mbedtls_ctr_drbg_set_nonce_len( &ctx, 0 );
CHK( mbedtls_ctr_drbg_seed( &ctx,
ctr_drbg_self_test_entropy,
(void *) entropy_source_nopr,
nonce_pers_nopr, 16 ) );
CHK( mbedtls_ctr_drbg_random( &ctx, buf, 16 ) );
CHK( mbedtls_ctr_drbg_reseed( &ctx, NULL, 0 ) );
CHK( mbedtls_ctr_drbg_random( &ctx, buf, 16 ) );
CHK( memcmp( buf, result_nopr, 16 ) );
mbedtls_ctr_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_CTR_DRBG_C */

View File

@@ -1,433 +0,0 @@
/*
* Debugging routines
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_DEBUG_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#define mbedtls_time_t time_t
#define mbedtls_snprintf snprintf
#define mbedtls_vsnprintf vsnprintf
#endif
#include "mbedtls/debug.h"
#include "mbedtls/error.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
#define DEBUG_BUF_SIZE 512
static int debug_threshold = 0;
void mbedtls_debug_set_threshold( int threshold )
{
debug_threshold = threshold;
}
/*
* All calls to f_dbg must be made via this function
*/
static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *str )
{
/*
* If in a threaded environment, we need a thread identifier.
* Since there is no portable way to get one, use the address of the ssl
* context instead, as it shouldn't be shared between threads.
*/
#if defined(MBEDTLS_THREADING_C)
char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */
mbedtls_snprintf( idstr, sizeof( idstr ), "%p: %s", (void*)ssl, str );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, idstr );
#else
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str );
#endif
}
void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *format, ... )
{
va_list argp;
char str[DEBUG_BUF_SIZE];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( NULL == ssl ||
NULL == ssl->conf ||
NULL == ssl->conf->f_dbg ||
level > debug_threshold )
{
return;
}
va_start( argp, format );
ret = mbedtls_vsnprintf( str, DEBUG_BUF_SIZE, format, argp );
va_end( argp );
if( ret >= 0 && ret < DEBUG_BUF_SIZE - 1 )
{
str[ret] = '\n';
str[ret + 1] = '\0';
}
debug_send_line( ssl, level, file, line, str );
}
void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, int ret )
{
char str[DEBUG_BUF_SIZE];
if( NULL == ssl ||
NULL == ssl->conf ||
NULL == ssl->conf->f_dbg ||
level > debug_threshold )
{
return;
}
/*
* With non-blocking I/O and examples that just retry immediately,
* the logs would be quickly flooded with WANT_READ, so ignore that.
* Don't ignore WANT_WRITE however, since is is usually rare.
*/
if( ret == MBEDTLS_ERR_SSL_WANT_READ )
return;
mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n",
text, ret, (unsigned int) -ret );
debug_send_line( ssl, level, file, line, str );
}
void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
const char *file, int line, const char *text,
const unsigned char *buf, size_t len )
{
char str[DEBUG_BUF_SIZE];
char txt[17];
size_t i, idx = 0;
if( NULL == ssl ||
NULL == ssl->conf ||
NULL == ssl->conf->f_dbg ||
level > debug_threshold )
{
return;
}
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n",
text, (unsigned int) len );
debug_send_line( ssl, level, file, line, str );
idx = 0;
memset( txt, 0, sizeof( txt ) );
for( i = 0; i < len; i++ )
{
if( i >= 4096 )
break;
if( i % 16 == 0 )
{
if( i > 0 )
{
mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt );
debug_send_line( ssl, level, file, line, str );
idx = 0;
memset( txt, 0, sizeof( txt ) );
}
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "%04x: ",
(unsigned int) i );
}
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x",
(unsigned int) buf[i] );
txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ;
}
if( len > 0 )
{
for( /* i = i */; i % 16 != 0; i++ )
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " );
mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt );
debug_send_line( ssl, level, file, line, str );
}
}
#if defined(MBEDTLS_ECP_C)
void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_ecp_point *X )
{
char str[DEBUG_BUF_SIZE];
if( NULL == ssl ||
NULL == ssl->conf ||
NULL == ssl->conf->f_dbg ||
level > debug_threshold )
{
return;
}
mbedtls_snprintf( str, sizeof( str ), "%s(X)", text );
mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->X );
mbedtls_snprintf( str, sizeof( str ), "%s(Y)", text );
mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->Y );
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_BIGNUM_C)
void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_mpi *X )
{
char str[DEBUG_BUF_SIZE];
int j, k, zeros = 1;
size_t i, n, idx = 0;
if( NULL == ssl ||
NULL == ssl->conf ||
NULL == ssl->conf->f_dbg ||
NULL == X ||
level > debug_threshold )
{
return;
}
for( n = X->n - 1; n > 0; n-- )
if( X->p[n] != 0 )
break;
for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- )
if( ( ( X->p[n] >> j ) & 1 ) != 0 )
break;
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n",
text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) );
debug_send_line( ssl, level, file, line, str );
idx = 0;
for( i = n + 1, j = 0; i > 0; i-- )
{
if( zeros && X->p[i - 1] == 0 )
continue;
for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- )
{
if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 )
continue;
else
zeros = 0;
if( j % 16 == 0 )
{
if( j > 0 )
{
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
debug_send_line( ssl, level, file, line, str );
idx = 0;
}
}
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int)
( X->p[i - 1] >> ( k << 3 ) ) & 0xFF );
j++;
}
}
if( zeros == 1 )
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" );
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
debug_send_line( ssl, level, file, line, str );
}
#endif /* MBEDTLS_BIGNUM_C */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
static void debug_print_pk( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_pk_context *pk )
{
size_t i;
mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS];
char name[16];
memset( items, 0, sizeof( items ) );
if( mbedtls_pk_debug( pk, items ) != 0 )
{
debug_send_line( ssl, level, file, line,
"invalid PK context\n" );
return;
}
for( i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++ )
{
if( items[i].type == MBEDTLS_PK_DEBUG_NONE )
return;
mbedtls_snprintf( name, sizeof( name ), "%s%s", text, items[i].name );
name[sizeof( name ) - 1] = '\0';
if( items[i].type == MBEDTLS_PK_DEBUG_MPI )
mbedtls_debug_print_mpi( ssl, level, file, line, name, items[i].value );
else
#if defined(MBEDTLS_ECP_C)
if( items[i].type == MBEDTLS_PK_DEBUG_ECP )
mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value );
else
#endif
debug_send_line( ssl, level, file, line,
"should not happen\n" );
}
}
static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level,
const char *file, int line, const char *text )
{
char str[DEBUG_BUF_SIZE];
const char *start, *cur;
start = text;
for( cur = text; *cur != '\0'; cur++ )
{
if( *cur == '\n' )
{
size_t len = cur - start + 1;
if( len > DEBUG_BUF_SIZE - 1 )
len = DEBUG_BUF_SIZE - 1;
memcpy( str, start, len );
str[len] = '\0';
debug_send_line( ssl, level, file, line, str );
start = cur + 1;
}
}
}
void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_x509_crt *crt )
{
char str[DEBUG_BUF_SIZE];
int i = 0;
if( NULL == ssl ||
NULL == ssl->conf ||
NULL == ssl->conf->f_dbg ||
NULL == crt ||
level > debug_threshold )
{
return;
}
while( crt != NULL )
{
char buf[1024];
mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i );
debug_send_line( ssl, level, file, line, str );
mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
debug_print_line_by_line( ssl, level, file, line, buf );
debug_print_pk( ssl, level, file, line, "crt->", &crt->pk );
crt = crt->next;
}
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_ECDH_C)
static void mbedtls_debug_printf_ecdh_internal( const mbedtls_ssl_context *ssl,
int level, const char *file,
int line,
const mbedtls_ecdh_context *ecdh,
mbedtls_debug_ecdh_attr attr )
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
const mbedtls_ecdh_context* ctx = ecdh;
#else
const mbedtls_ecdh_context_mbed* ctx = &ecdh->ctx.mbed_ecdh;
#endif
switch( attr )
{
case MBEDTLS_DEBUG_ECDH_Q:
mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Q",
&ctx->Q );
break;
case MBEDTLS_DEBUG_ECDH_QP:
mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Qp",
&ctx->Qp );
break;
case MBEDTLS_DEBUG_ECDH_Z:
mbedtls_debug_print_mpi( ssl, level, file, line, "ECDH: z",
&ctx->z );
break;
default:
break;
}
}
void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const mbedtls_ecdh_context *ecdh,
mbedtls_debug_ecdh_attr attr )
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh, attr );
#else
switch( ecdh->var )
{
default:
mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh,
attr );
}
#endif
}
#endif /* MBEDTLS_ECDH_C */
#endif /* MBEDTLS_DEBUG_C */

View File

@@ -1,735 +0,0 @@
/*
* Diffie-Hellman-Merkle key exchange
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The following sources were referenced in the design of this implementation
* of the Diffie-Hellman-Merkle algorithm:
*
* [1] Handbook of Applied Cryptography - 1997, Chapter 12
* Menezes, van Oorschot and Vanstone
*
*/
#include "common.h"
#if defined(MBEDTLS_DHM_C)
#include "mbedtls/dhm.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
#include "mbedtls/asn1.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if !defined(MBEDTLS_DHM_ALT)
#define DHM_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_DHM_BAD_INPUT_DATA )
#define DHM_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
/*
* helper to validate the mbedtls_mpi size and import it
*/
static int dhm_read_bignum( mbedtls_mpi *X,
unsigned char **p,
const unsigned char *end )
{
int ret, n;
if( end - *p < 2 )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
n = ( (*p)[0] << 8 ) | (*p)[1];
(*p) += 2;
if( (int)( end - *p ) < n )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( ( ret = mbedtls_mpi_read_binary( X, *p, n ) ) != 0 )
return( MBEDTLS_ERR_DHM_READ_PARAMS_FAILED + ret );
(*p) += n;
return( 0 );
}
/*
* Verify sanity of parameter with regards to P
*
* Parameter should be: 2 <= public_param <= P - 2
*
* This means that we need to return an error if
* public_param < 2 or public_param > P-2
*
* For more information on the attack, see:
* http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf
* http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-2643
*/
static int dhm_check_range( const mbedtls_mpi *param, const mbedtls_mpi *P )
{
mbedtls_mpi L, U;
int ret = 0;
mbedtls_mpi_init( &L ); mbedtls_mpi_init( &U );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &L, 2 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &U, P, 2 ) );
if( mbedtls_mpi_cmp_mpi( param, &L ) < 0 ||
mbedtls_mpi_cmp_mpi( param, &U ) > 0 )
{
ret = MBEDTLS_ERR_DHM_BAD_INPUT_DATA;
}
cleanup:
mbedtls_mpi_free( &L ); mbedtls_mpi_free( &U );
return( ret );
}
void mbedtls_dhm_init( mbedtls_dhm_context *ctx )
{
DHM_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_dhm_context ) );
}
/*
* Parse the ServerKeyExchange parameters
*/
int mbedtls_dhm_read_params( mbedtls_dhm_context *ctx,
unsigned char **p,
const unsigned char *end )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( p != NULL && *p != NULL );
DHM_VALIDATE_RET( end != NULL );
if( ( ret = dhm_read_bignum( &ctx->P, p, end ) ) != 0 ||
( ret = dhm_read_bignum( &ctx->G, p, end ) ) != 0 ||
( ret = dhm_read_bignum( &ctx->GY, p, end ) ) != 0 )
return( ret );
if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 )
return( ret );
ctx->len = mbedtls_mpi_size( &ctx->P );
return( 0 );
}
/*
* Setup and write the ServerKeyExchange parameters
*/
int mbedtls_dhm_make_params( mbedtls_dhm_context *ctx, int x_size,
unsigned char *output, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret, count = 0;
size_t n1, n2, n3;
unsigned char *p;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( output != NULL );
DHM_VALIDATE_RET( olen != NULL );
DHM_VALIDATE_RET( f_rng != NULL );
if( mbedtls_mpi_cmp_int( &ctx->P, 0 ) == 0 )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
/*
* Generate X as large as possible ( < P )
*/
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->X, x_size, f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->X, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED );
}
while( dhm_check_range( &ctx->X, &ctx->P ) != 0 );
/*
* Calculate GX = G^X mod P
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X,
&ctx->P , &ctx->RP ) );
if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 )
return( ret );
/*
* export P, G, GX
*/
#define DHM_MPI_EXPORT( X, n ) \
do { \
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( ( X ), \
p + 2, \
( n ) ) ); \
*p++ = (unsigned char)( ( n ) >> 8 ); \
*p++ = (unsigned char)( ( n ) ); \
p += ( n ); \
} while( 0 )
n1 = mbedtls_mpi_size( &ctx->P );
n2 = mbedtls_mpi_size( &ctx->G );
n3 = mbedtls_mpi_size( &ctx->GX );
p = output;
DHM_MPI_EXPORT( &ctx->P , n1 );
DHM_MPI_EXPORT( &ctx->G , n2 );
DHM_MPI_EXPORT( &ctx->GX, n3 );
*olen = p - output;
ctx->len = n1;
cleanup:
if( ret != 0 )
return( MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED + ret );
return( 0 );
}
/*
* Set prime modulus and generator
*/
int mbedtls_dhm_set_group( mbedtls_dhm_context *ctx,
const mbedtls_mpi *P,
const mbedtls_mpi *G )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( P != NULL );
DHM_VALIDATE_RET( G != NULL );
if( ( ret = mbedtls_mpi_copy( &ctx->P, P ) ) != 0 ||
( ret = mbedtls_mpi_copy( &ctx->G, G ) ) != 0 )
{
return( MBEDTLS_ERR_DHM_SET_GROUP_FAILED + ret );
}
ctx->len = mbedtls_mpi_size( &ctx->P );
return( 0 );
}
/*
* Import the peer's public value G^Y
*/
int mbedtls_dhm_read_public( mbedtls_dhm_context *ctx,
const unsigned char *input, size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( input != NULL );
if( ilen < 1 || ilen > ctx->len )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( ( ret = mbedtls_mpi_read_binary( &ctx->GY, input, ilen ) ) != 0 )
return( MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED + ret );
return( 0 );
}
/*
* Create own private value X and export G^X
*/
int mbedtls_dhm_make_public( mbedtls_dhm_context *ctx, int x_size,
unsigned char *output, size_t olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret, count = 0;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( output != NULL );
DHM_VALIDATE_RET( f_rng != NULL );
if( olen < 1 || olen > ctx->len )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( mbedtls_mpi_cmp_int( &ctx->P, 0 ) == 0 )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
/*
* generate X and calculate GX = G^X mod P
*/
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->X, x_size, f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->X, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED );
}
while( dhm_check_range( &ctx->X, &ctx->P ) != 0 );
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X,
&ctx->P , &ctx->RP ) );
if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 )
return( ret );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->GX, output, olen ) );
cleanup:
if( ret != 0 )
return( MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED + ret );
return( 0 );
}
/*
* Pick a random R in the range [2, M) for blinding purposes
*/
static int dhm_random_below( mbedtls_mpi *R, const mbedtls_mpi *M,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret, count;
count = 0;
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( R, mbedtls_mpi_size( M ), f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( R, M ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( R, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE );
}
while( mbedtls_mpi_cmp_int( R, 1 ) <= 0 );
cleanup:
return( ret );
}
/*
* Use the blinding method and optimisation suggested in section 10 of:
* KOCHER, Paul C. Timing attacks on implementations of Diffie-Hellman, RSA,
* DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer
* Berlin Heidelberg, 1996. p. 104-113.
*/
static int dhm_update_blinding( mbedtls_dhm_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret;
mbedtls_mpi R;
mbedtls_mpi_init( &R );
/*
* Don't use any blinding the first time a particular X is used,
* but remember it to use blinding next time.
*/
if( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->pX ) != 0 )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &ctx->pX, &ctx->X ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->Vi, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->Vf, 1 ) );
return( 0 );
}
/*
* Ok, we need blinding. Can we re-use existing values?
* If yes, just update them by squaring them.
*/
if( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) != 0 )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->P ) );
return( 0 );
}
/*
* We need to generate blinding values from scratch
*/
/* Vi = random( 2, P-1 ) */
MBEDTLS_MPI_CHK( dhm_random_below( &ctx->Vi, &ctx->P, f_rng, p_rng ) );
/* Vf = Vi^-X mod P
* First compute Vi^-1 = R * (R Vi)^-1, (avoiding leaks from inv_mod),
* then elevate to the Xth power. */
MBEDTLS_MPI_CHK( dhm_random_below( &R, &ctx->P, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vi, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->Vf, &ctx->Vf, &ctx->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vf, &ctx->Vf, &ctx->X, &ctx->P, &ctx->RP ) );
cleanup:
mbedtls_mpi_free( &R );
return( ret );
}
/*
* Derive and export the shared secret (G^Y)^X mod P
*/
int mbedtls_dhm_calc_secret( mbedtls_dhm_context *ctx,
unsigned char *output, size_t output_size, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_mpi GYb;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( output != NULL );
DHM_VALIDATE_RET( olen != NULL );
if( output_size < ctx->len )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 )
return( ret );
mbedtls_mpi_init( &GYb );
/* Blind peer's value */
if( f_rng != NULL )
{
MBEDTLS_MPI_CHK( dhm_update_blinding( ctx, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &GYb, &ctx->GY, &ctx->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &GYb, &GYb, &ctx->P ) );
}
else
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &GYb, &ctx->GY ) );
/* Do modular exponentiation */
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->K, &GYb, &ctx->X,
&ctx->P, &ctx->RP ) );
/* Unblind secret value */
if( f_rng != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->K, &ctx->K, &ctx->Vf ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->K, &ctx->K, &ctx->P ) );
}
*olen = mbedtls_mpi_size( &ctx->K );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->K, output, *olen ) );
cleanup:
mbedtls_mpi_free( &GYb );
if( ret != 0 )
return( MBEDTLS_ERR_DHM_CALC_SECRET_FAILED + ret );
return( 0 );
}
/*
* Free the components of a DHM key
*/
void mbedtls_dhm_free( mbedtls_dhm_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_mpi_free( &ctx->pX );
mbedtls_mpi_free( &ctx->Vf );
mbedtls_mpi_free( &ctx->Vi );
mbedtls_mpi_free( &ctx->RP );
mbedtls_mpi_free( &ctx->K );
mbedtls_mpi_free( &ctx->GY );
mbedtls_mpi_free( &ctx->GX );
mbedtls_mpi_free( &ctx->X );
mbedtls_mpi_free( &ctx->G );
mbedtls_mpi_free( &ctx->P );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_dhm_context ) );
}
#if defined(MBEDTLS_ASN1_PARSE_C)
/*
* Parse DHM parameters
*/
int mbedtls_dhm_parse_dhm( mbedtls_dhm_context *dhm, const unsigned char *dhmin,
size_t dhminlen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
unsigned char *p, *end;
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_context pem;
#endif /* MBEDTLS_PEM_PARSE_C */
DHM_VALIDATE_RET( dhm != NULL );
DHM_VALIDATE_RET( dhmin != NULL );
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_init( &pem );
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( dhminlen == 0 || dhmin[dhminlen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN DH PARAMETERS-----",
"-----END DH PARAMETERS-----",
dhmin, NULL, 0, &dhminlen );
if( ret == 0 )
{
/*
* Was PEM encoded
*/
dhminlen = pem.buflen;
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
goto exit;
p = ( ret == 0 ) ? pem.buf : (unsigned char *) dhmin;
#else
p = (unsigned char *) dhmin;
#endif /* MBEDTLS_PEM_PARSE_C */
end = p + dhminlen;
/*
* DHParams ::= SEQUENCE {
* prime INTEGER, -- P
* generator INTEGER, -- g
* privateValueLength INTEGER OPTIONAL
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret;
goto exit;
}
end = p + len;
if( ( ret = mbedtls_asn1_get_mpi( &p, end, &dhm->P ) ) != 0 ||
( ret = mbedtls_asn1_get_mpi( &p, end, &dhm->G ) ) != 0 )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret;
goto exit;
}
if( p != end )
{
/* This might be the optional privateValueLength.
* If so, we can cleanly discard it */
mbedtls_mpi rec;
mbedtls_mpi_init( &rec );
ret = mbedtls_asn1_get_mpi( &p, end, &rec );
mbedtls_mpi_free( &rec );
if ( ret != 0 )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret;
goto exit;
}
if ( p != end )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH;
goto exit;
}
}
ret = 0;
dhm->len = mbedtls_mpi_size( &dhm->P );
exit:
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_free( &pem );
#endif
if( ret != 0 )
mbedtls_dhm_free( dhm );
return( ret );
}
#if defined(MBEDTLS_FS_IO)
/*
* Load all data from a file into a given buffer.
*
* The file is expected to contain either PEM or DER encoded data.
* A terminating null byte is always appended. It is included in the announced
* length only if the data looks like it is PEM encoded.
*/
static int load_file( const char *path, unsigned char **buf, size_t *n )
{
FILE *f;
long size;
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_DHM_FILE_IO_ERROR );
fseek( f, 0, SEEK_END );
if( ( size = ftell( f ) ) == -1 )
{
fclose( f );
return( MBEDTLS_ERR_DHM_FILE_IO_ERROR );
}
fseek( f, 0, SEEK_SET );
*n = (size_t) size;
if( *n + 1 == 0 ||
( *buf = mbedtls_calloc( 1, *n + 1 ) ) == NULL )
{
fclose( f );
return( MBEDTLS_ERR_DHM_ALLOC_FAILED );
}
if( fread( *buf, 1, *n, f ) != *n )
{
fclose( f );
mbedtls_platform_zeroize( *buf, *n + 1 );
mbedtls_free( *buf );
return( MBEDTLS_ERR_DHM_FILE_IO_ERROR );
}
fclose( f );
(*buf)[*n] = '\0';
if( strstr( (const char *) *buf, "-----BEGIN " ) != NULL )
++*n;
return( 0 );
}
/*
* Load and parse DHM parameters
*/
int mbedtls_dhm_parse_dhmfile( mbedtls_dhm_context *dhm, const char *path )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t n;
unsigned char *buf;
DHM_VALIDATE_RET( dhm != NULL );
DHM_VALIDATE_RET( path != NULL );
if( ( ret = load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_dhm_parse_dhm( dhm, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
#endif /* MBEDTLS_ASN1_PARSE_C */
#endif /* MBEDTLS_DHM_ALT */
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PEM_PARSE_C)
static const char mbedtls_test_dhm_params[] =
"-----BEGIN DH PARAMETERS-----\r\n"
"MIGHAoGBAJ419DBEOgmQTzo5qXl5fQcN9TN455wkOL7052HzxxRVMyhYmwQcgJvh\r\n"
"1sa18fyfR9OiVEMYglOpkqVoGLN7qd5aQNNi5W7/C+VBdHTBJcGZJyyP5B3qcz32\r\n"
"9mLJKudlVudV0Qxk5qUJaPZ/xupz0NyoVpviuiBOI1gNi8ovSXWzAgEC\r\n"
"-----END DH PARAMETERS-----\r\n";
#else /* MBEDTLS_PEM_PARSE_C */
static const char mbedtls_test_dhm_params[] = {
0x30, 0x81, 0x87, 0x02, 0x81, 0x81, 0x00, 0x9e, 0x35, 0xf4, 0x30, 0x44,
0x3a, 0x09, 0x90, 0x4f, 0x3a, 0x39, 0xa9, 0x79, 0x79, 0x7d, 0x07, 0x0d,
0xf5, 0x33, 0x78, 0xe7, 0x9c, 0x24, 0x38, 0xbe, 0xf4, 0xe7, 0x61, 0xf3,
0xc7, 0x14, 0x55, 0x33, 0x28, 0x58, 0x9b, 0x04, 0x1c, 0x80, 0x9b, 0xe1,
0xd6, 0xc6, 0xb5, 0xf1, 0xfc, 0x9f, 0x47, 0xd3, 0xa2, 0x54, 0x43, 0x18,
0x82, 0x53, 0xa9, 0x92, 0xa5, 0x68, 0x18, 0xb3, 0x7b, 0xa9, 0xde, 0x5a,
0x40, 0xd3, 0x62, 0xe5, 0x6e, 0xff, 0x0b, 0xe5, 0x41, 0x74, 0x74, 0xc1,
0x25, 0xc1, 0x99, 0x27, 0x2c, 0x8f, 0xe4, 0x1d, 0xea, 0x73, 0x3d, 0xf6,
0xf6, 0x62, 0xc9, 0x2a, 0xe7, 0x65, 0x56, 0xe7, 0x55, 0xd1, 0x0c, 0x64,
0xe6, 0xa5, 0x09, 0x68, 0xf6, 0x7f, 0xc6, 0xea, 0x73, 0xd0, 0xdc, 0xa8,
0x56, 0x9b, 0xe2, 0xba, 0x20, 0x4e, 0x23, 0x58, 0x0d, 0x8b, 0xca, 0x2f,
0x49, 0x75, 0xb3, 0x02, 0x01, 0x02 };
#endif /* MBEDTLS_PEM_PARSE_C */
static const size_t mbedtls_test_dhm_params_len = sizeof( mbedtls_test_dhm_params );
/*
* Checkup routine
*/
int mbedtls_dhm_self_test( int verbose )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_dhm_context dhm;
mbedtls_dhm_init( &dhm );
if( verbose != 0 )
mbedtls_printf( " DHM parameter load: " );
if( ( ret = mbedtls_dhm_parse_dhm( &dhm,
(const unsigned char *) mbedtls_test_dhm_params,
mbedtls_test_dhm_params_len ) ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n\n" );
exit:
mbedtls_dhm_free( &dhm );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_DHM_C */

View File

@@ -1,729 +0,0 @@
/*
* Elliptic curve Diffie-Hellman
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* References:
*
* SEC1 http://www.secg.org/index.php?action=secg,docs_secg
* RFC 4492
*/
#include "common.h"
#if defined(MBEDTLS_ECDH_C)
#include "mbedtls/ecdh.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
/* Parameter validation macros based on platform_util.h */
#define ECDH_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
#define ECDH_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
typedef mbedtls_ecdh_context mbedtls_ecdh_context_mbed;
#endif
static mbedtls_ecp_group_id mbedtls_ecdh_grp_id(
const mbedtls_ecdh_context *ctx )
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ctx->grp.id );
#else
return( ctx->grp_id );
#endif
}
int mbedtls_ecdh_can_do( mbedtls_ecp_group_id gid )
{
/* At this time, all groups support ECDH. */
(void) gid;
return( 1 );
}
#if !defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)
/*
* Generate public key (restartable version)
*
* Note: this internal function relies on its caller preserving the value of
* the output parameter 'd' across continuation calls. This would not be
* acceptable for a public function but is OK here as we control call sites.
*/
static int ecdh_gen_public_restartable( mbedtls_ecp_group *grp,
mbedtls_mpi *d, mbedtls_ecp_point *Q,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
/* If multiplication is in progress, we already generated a privkey */
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx == NULL || rs_ctx->rsm == NULL )
#endif
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, d, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, Q, d, &grp->G,
f_rng, p_rng, rs_ctx ) );
cleanup:
return( ret );
}
/*
* Generate public key
*/
int mbedtls_ecdh_gen_public( mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECDH_VALIDATE_RET( grp != NULL );
ECDH_VALIDATE_RET( d != NULL );
ECDH_VALIDATE_RET( Q != NULL );
ECDH_VALIDATE_RET( f_rng != NULL );
return( ecdh_gen_public_restartable( grp, d, Q, f_rng, p_rng, NULL ) );
}
#endif /* !MBEDTLS_ECDH_GEN_PUBLIC_ALT */
#if !defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT)
/*
* Compute shared secret (SEC1 3.3.1)
*/
static int ecdh_compute_shared_restartable( mbedtls_ecp_group *grp,
mbedtls_mpi *z,
const mbedtls_ecp_point *Q, const mbedtls_mpi *d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ecp_point P;
mbedtls_ecp_point_init( &P );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, &P, d, Q,
f_rng, p_rng, rs_ctx ) );
if( mbedtls_ecp_is_zero( &P ) )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( z, &P.X ) );
cleanup:
mbedtls_ecp_point_free( &P );
return( ret );
}
/*
* Compute shared secret (SEC1 3.3.1)
*/
int mbedtls_ecdh_compute_shared( mbedtls_ecp_group *grp, mbedtls_mpi *z,
const mbedtls_ecp_point *Q, const mbedtls_mpi *d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECDH_VALIDATE_RET( grp != NULL );
ECDH_VALIDATE_RET( Q != NULL );
ECDH_VALIDATE_RET( d != NULL );
ECDH_VALIDATE_RET( z != NULL );
return( ecdh_compute_shared_restartable( grp, z, Q, d,
f_rng, p_rng, NULL ) );
}
#endif /* !MBEDTLS_ECDH_COMPUTE_SHARED_ALT */
static void ecdh_init_internal( mbedtls_ecdh_context_mbed *ctx )
{
mbedtls_ecp_group_init( &ctx->grp );
mbedtls_mpi_init( &ctx->d );
mbedtls_ecp_point_init( &ctx->Q );
mbedtls_ecp_point_init( &ctx->Qp );
mbedtls_mpi_init( &ctx->z );
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_init( &ctx->rs );
#endif
}
/*
* Initialize context
*/
void mbedtls_ecdh_init( mbedtls_ecdh_context *ctx )
{
ECDH_VALIDATE( ctx != NULL );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
ecdh_init_internal( ctx );
mbedtls_ecp_point_init( &ctx->Vi );
mbedtls_ecp_point_init( &ctx->Vf );
mbedtls_mpi_init( &ctx->_d );
#else
memset( ctx, 0, sizeof( mbedtls_ecdh_context ) );
ctx->var = MBEDTLS_ECDH_VARIANT_NONE;
#endif
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
#if defined(MBEDTLS_ECP_RESTARTABLE)
ctx->restart_enabled = 0;
#endif
}
static int ecdh_setup_internal( mbedtls_ecdh_context_mbed *ctx,
mbedtls_ecp_group_id grp_id )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
ret = mbedtls_ecp_group_load( &ctx->grp, grp_id );
if( ret != 0 )
{
return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE );
}
return( 0 );
}
/*
* Setup context
*/
int mbedtls_ecdh_setup( mbedtls_ecdh_context *ctx, mbedtls_ecp_group_id grp_id )
{
ECDH_VALIDATE_RET( ctx != NULL );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_setup_internal( ctx, grp_id ) );
#else
switch( grp_id )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECP_DP_CURVE25519:
ctx->point_format = MBEDTLS_ECP_PF_COMPRESSED;
ctx->var = MBEDTLS_ECDH_VARIANT_EVEREST;
ctx->grp_id = grp_id;
return( mbedtls_everest_setup( &ctx->ctx.everest_ecdh, grp_id ) );
#endif
default:
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
ctx->var = MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0;
ctx->grp_id = grp_id;
ecdh_init_internal( &ctx->ctx.mbed_ecdh );
return( ecdh_setup_internal( &ctx->ctx.mbed_ecdh, grp_id ) );
}
#endif
}
static void ecdh_free_internal( mbedtls_ecdh_context_mbed *ctx )
{
mbedtls_ecp_group_free( &ctx->grp );
mbedtls_mpi_free( &ctx->d );
mbedtls_ecp_point_free( &ctx->Q );
mbedtls_ecp_point_free( &ctx->Qp );
mbedtls_mpi_free( &ctx->z );
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_free( &ctx->rs );
#endif
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Enable restartable operations for context
*/
void mbedtls_ecdh_enable_restart( mbedtls_ecdh_context *ctx )
{
ECDH_VALIDATE( ctx != NULL );
ctx->restart_enabled = 1;
}
#endif
/*
* Free context
*/
void mbedtls_ecdh_free( mbedtls_ecdh_context *ctx )
{
if( ctx == NULL )
return;
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
mbedtls_ecp_point_free( &ctx->Vi );
mbedtls_ecp_point_free( &ctx->Vf );
mbedtls_mpi_free( &ctx->_d );
ecdh_free_internal( ctx );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
mbedtls_everest_free( &ctx->ctx.everest_ecdh );
break;
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
ecdh_free_internal( &ctx->ctx.mbed_ecdh );
break;
default:
break;
}
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
ctx->var = MBEDTLS_ECDH_VARIANT_NONE;
ctx->grp_id = MBEDTLS_ECP_DP_NONE;
#endif
}
static int ecdh_make_params_internal( mbedtls_ecdh_context_mbed *ctx,
size_t *olen, int point_format,
unsigned char *buf, size_t blen,
int (*f_rng)(void *,
unsigned char *,
size_t),
void *p_rng,
int restart_enabled )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t grp_len, pt_len;
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_ctx *rs_ctx = NULL;
#endif
if( ctx->grp.pbits == 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( restart_enabled )
rs_ctx = &ctx->rs;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ( ret = ecdh_gen_public_restartable( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng, rs_ctx ) ) != 0 )
return( ret );
#else
if( ( ret = mbedtls_ecdh_gen_public( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng ) ) != 0 )
return( ret );
#endif /* MBEDTLS_ECP_RESTARTABLE */
if( ( ret = mbedtls_ecp_tls_write_group( &ctx->grp, &grp_len, buf,
blen ) ) != 0 )
return( ret );
buf += grp_len;
blen -= grp_len;
if( ( ret = mbedtls_ecp_tls_write_point( &ctx->grp, &ctx->Q, point_format,
&pt_len, buf, blen ) ) != 0 )
return( ret );
*olen = grp_len + pt_len;
return( 0 );
}
/*
* Setup and write the ServerKeyExchange parameters (RFC 4492)
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
int mbedtls_ecdh_make_params( mbedtls_ecdh_context *ctx, size_t *olen,
unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int restart_enabled = 0;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( olen != NULL );
ECDH_VALIDATE_RET( buf != NULL );
ECDH_VALIDATE_RET( f_rng != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
restart_enabled = ctx->restart_enabled;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_make_params_internal( ctx, olen, ctx->point_format, buf, blen,
f_rng, p_rng, restart_enabled ) );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
return( mbedtls_everest_make_params( &ctx->ctx.everest_ecdh, olen,
buf, blen, f_rng, p_rng ) );
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_make_params_internal( &ctx->ctx.mbed_ecdh, olen,
ctx->point_format, buf, blen,
f_rng, p_rng,
restart_enabled ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_read_params_internal( mbedtls_ecdh_context_mbed *ctx,
const unsigned char **buf,
const unsigned char *end )
{
return( mbedtls_ecp_tls_read_point( &ctx->grp, &ctx->Qp, buf,
end - *buf ) );
}
/*
* Read the ServerKeyExhange parameters (RFC 4492)
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
int mbedtls_ecdh_read_params( mbedtls_ecdh_context *ctx,
const unsigned char **buf,
const unsigned char *end )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ecp_group_id grp_id;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( buf != NULL );
ECDH_VALIDATE_RET( *buf != NULL );
ECDH_VALIDATE_RET( end != NULL );
if( ( ret = mbedtls_ecp_tls_read_group_id( &grp_id, buf, end - *buf ) )
!= 0 )
return( ret );
if( ( ret = mbedtls_ecdh_setup( ctx, grp_id ) ) != 0 )
return( ret );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_read_params_internal( ctx, buf, end ) );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
return( mbedtls_everest_read_params( &ctx->ctx.everest_ecdh,
buf, end) );
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_read_params_internal( &ctx->ctx.mbed_ecdh,
buf, end ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_get_params_internal( mbedtls_ecdh_context_mbed *ctx,
const mbedtls_ecp_keypair *key,
mbedtls_ecdh_side side )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
/* If it's not our key, just import the public part as Qp */
if( side == MBEDTLS_ECDH_THEIRS )
return( mbedtls_ecp_copy( &ctx->Qp, &key->Q ) );
/* Our key: import public (as Q) and private parts */
if( side != MBEDTLS_ECDH_OURS )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
if( ( ret = mbedtls_ecp_copy( &ctx->Q, &key->Q ) ) != 0 ||
( ret = mbedtls_mpi_copy( &ctx->d, &key->d ) ) != 0 )
return( ret );
return( 0 );
}
/*
* Get parameters from a keypair
*/
int mbedtls_ecdh_get_params( mbedtls_ecdh_context *ctx,
const mbedtls_ecp_keypair *key,
mbedtls_ecdh_side side )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( key != NULL );
ECDH_VALIDATE_RET( side == MBEDTLS_ECDH_OURS ||
side == MBEDTLS_ECDH_THEIRS );
if( mbedtls_ecdh_grp_id( ctx ) == MBEDTLS_ECP_DP_NONE )
{
/* This is the first call to get_params(). Set up the context
* for use with the group. */
if( ( ret = mbedtls_ecdh_setup( ctx, key->grp.id ) ) != 0 )
return( ret );
}
else
{
/* This is not the first call to get_params(). Check that the
* current key's group is the same as the context's, which was set
* from the first key's group. */
if( mbedtls_ecdh_grp_id( ctx ) != key->grp.id )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_get_params_internal( ctx, key, side ) );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
{
mbedtls_everest_ecdh_side s = side == MBEDTLS_ECDH_OURS ?
MBEDTLS_EVEREST_ECDH_OURS :
MBEDTLS_EVEREST_ECDH_THEIRS;
return( mbedtls_everest_get_params( &ctx->ctx.everest_ecdh,
key, s) );
}
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_get_params_internal( &ctx->ctx.mbed_ecdh,
key, side ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_make_public_internal( mbedtls_ecdh_context_mbed *ctx,
size_t *olen, int point_format,
unsigned char *buf, size_t blen,
int (*f_rng)(void *,
unsigned char *,
size_t),
void *p_rng,
int restart_enabled )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_ctx *rs_ctx = NULL;
#endif
if( ctx->grp.pbits == 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( restart_enabled )
rs_ctx = &ctx->rs;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ( ret = ecdh_gen_public_restartable( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng, rs_ctx ) ) != 0 )
return( ret );
#else
if( ( ret = mbedtls_ecdh_gen_public( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng ) ) != 0 )
return( ret );
#endif /* MBEDTLS_ECP_RESTARTABLE */
return mbedtls_ecp_tls_write_point( &ctx->grp, &ctx->Q, point_format, olen,
buf, blen );
}
/*
* Setup and export the client public value
*/
int mbedtls_ecdh_make_public( mbedtls_ecdh_context *ctx, size_t *olen,
unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int restart_enabled = 0;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( olen != NULL );
ECDH_VALIDATE_RET( buf != NULL );
ECDH_VALIDATE_RET( f_rng != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
restart_enabled = ctx->restart_enabled;
#endif
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_make_public_internal( ctx, olen, ctx->point_format, buf, blen,
f_rng, p_rng, restart_enabled ) );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
return( mbedtls_everest_make_public( &ctx->ctx.everest_ecdh, olen,
buf, blen, f_rng, p_rng ) );
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_make_public_internal( &ctx->ctx.mbed_ecdh, olen,
ctx->point_format, buf, blen,
f_rng, p_rng,
restart_enabled ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_read_public_internal( mbedtls_ecdh_context_mbed *ctx,
const unsigned char *buf, size_t blen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const unsigned char *p = buf;
if( ( ret = mbedtls_ecp_tls_read_point( &ctx->grp, &ctx->Qp, &p,
blen ) ) != 0 )
return( ret );
if( (size_t)( p - buf ) != blen )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
return( 0 );
}
/*
* Parse and import the client's public value
*/
int mbedtls_ecdh_read_public( mbedtls_ecdh_context *ctx,
const unsigned char *buf, size_t blen )
{
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( buf != NULL );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_read_public_internal( ctx, buf, blen ) );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
return( mbedtls_everest_read_public( &ctx->ctx.everest_ecdh,
buf, blen ) );
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_read_public_internal( &ctx->ctx.mbed_ecdh,
buf, blen ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_calc_secret_internal( mbedtls_ecdh_context_mbed *ctx,
size_t *olen, unsigned char *buf,
size_t blen,
int (*f_rng)(void *,
unsigned char *,
size_t),
void *p_rng,
int restart_enabled )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_ctx *rs_ctx = NULL;
#endif
if( ctx == NULL || ctx->grp.pbits == 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( restart_enabled )
rs_ctx = &ctx->rs;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ( ret = ecdh_compute_shared_restartable( &ctx->grp, &ctx->z, &ctx->Qp,
&ctx->d, f_rng, p_rng,
rs_ctx ) ) != 0 )
{
return( ret );
}
#else
if( ( ret = mbedtls_ecdh_compute_shared( &ctx->grp, &ctx->z, &ctx->Qp,
&ctx->d, f_rng, p_rng ) ) != 0 )
{
return( ret );
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
if( mbedtls_mpi_size( &ctx->z ) > blen )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
*olen = ctx->grp.pbits / 8 + ( ( ctx->grp.pbits % 8 ) != 0 );
if( mbedtls_ecp_get_type( &ctx->grp ) == MBEDTLS_ECP_TYPE_MONTGOMERY )
return mbedtls_mpi_write_binary_le( &ctx->z, buf, *olen );
return mbedtls_mpi_write_binary( &ctx->z, buf, *olen );
}
/*
* Derive and export the shared secret
*/
int mbedtls_ecdh_calc_secret( mbedtls_ecdh_context *ctx, size_t *olen,
unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int restart_enabled = 0;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( olen != NULL );
ECDH_VALIDATE_RET( buf != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
restart_enabled = ctx->restart_enabled;
#endif
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_calc_secret_internal( ctx, olen, buf, blen, f_rng, p_rng,
restart_enabled ) );
#else
switch( ctx->var )
{
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
case MBEDTLS_ECDH_VARIANT_EVEREST:
return( mbedtls_everest_calc_secret( &ctx->ctx.everest_ecdh, olen,
buf, blen, f_rng, p_rng ) );
#endif
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_calc_secret_internal( &ctx->ctx.mbed_ecdh, olen, buf,
blen, f_rng, p_rng,
restart_enabled ) );
default:
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
#endif
}
#endif /* MBEDTLS_ECDH_C */

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@@ -1,724 +0,0 @@
/*
* Entropy accumulator implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_ENTROPY_C)
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
#warning "**** WARNING! MBEDTLS_TEST_NULL_ENTROPY defined! "
#warning "**** THIS BUILD HAS NO DEFINED ENTROPY SOURCES "
#warning "**** THIS BUILD IS *NOT* SUITABLE FOR PRODUCTION USE "
#endif
#include "mbedtls/entropy.h"
#include "mbedtls/entropy_poll.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#include "mbedtls/platform.h"
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if defined(MBEDTLS_HAVEGE_C)
#include "mbedtls/havege.h"
#endif
#define ENTROPY_MAX_LOOP 256 /**< Maximum amount to loop before error */
void mbedtls_entropy_init( mbedtls_entropy_context *ctx )
{
ctx->source_count = 0;
memset( ctx->source, 0, sizeof( ctx->source ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
ctx->accumulator_started = 0;
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
mbedtls_sha512_init( &ctx->accumulator );
#else
mbedtls_sha256_init( &ctx->accumulator );
#endif
#if defined(MBEDTLS_HAVEGE_C)
mbedtls_havege_init( &ctx->havege_data );
#endif
/* Reminder: Update ENTROPY_HAVE_STRONG in the test files
* when adding more strong entropy sources here. */
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_add_source( ctx, mbedtls_null_entropy_poll, NULL,
1, MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
mbedtls_entropy_add_source( ctx, mbedtls_platform_entropy_poll, NULL,
MBEDTLS_ENTROPY_MIN_PLATFORM,
MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if defined(MBEDTLS_TIMING_C)
mbedtls_entropy_add_source( ctx, mbedtls_hardclock_poll, NULL,
MBEDTLS_ENTROPY_MIN_HARDCLOCK,
MBEDTLS_ENTROPY_SOURCE_WEAK );
#endif
#if defined(MBEDTLS_HAVEGE_C)
mbedtls_entropy_add_source( ctx, mbedtls_havege_poll, &ctx->havege_data,
MBEDTLS_ENTROPY_MIN_HAVEGE,
MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
mbedtls_entropy_add_source( ctx, mbedtls_hardware_poll, NULL,
MBEDTLS_ENTROPY_MIN_HARDWARE,
MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
mbedtls_entropy_add_source( ctx, mbedtls_nv_seed_poll, NULL,
MBEDTLS_ENTROPY_BLOCK_SIZE,
MBEDTLS_ENTROPY_SOURCE_STRONG );
ctx->initial_entropy_run = 0;
#endif
#endif /* MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES */
}
void mbedtls_entropy_free( mbedtls_entropy_context *ctx )
{
#if defined(MBEDTLS_HAVEGE_C)
mbedtls_havege_free( &ctx->havege_data );
#endif
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
mbedtls_sha512_free( &ctx->accumulator );
#else
mbedtls_sha256_free( &ctx->accumulator );
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
ctx->initial_entropy_run = 0;
#endif
ctx->source_count = 0;
mbedtls_platform_zeroize( ctx->source, sizeof( ctx->source ) );
ctx->accumulator_started = 0;
}
int mbedtls_entropy_add_source( mbedtls_entropy_context *ctx,
mbedtls_entropy_f_source_ptr f_source, void *p_source,
size_t threshold, int strong )
{
int idx, ret = 0;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
idx = ctx->source_count;
if( idx >= MBEDTLS_ENTROPY_MAX_SOURCES )
{
ret = MBEDTLS_ERR_ENTROPY_MAX_SOURCES;
goto exit;
}
ctx->source[idx].f_source = f_source;
ctx->source[idx].p_source = p_source;
ctx->source[idx].threshold = threshold;
ctx->source[idx].strong = strong;
ctx->source_count++;
exit:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Entropy accumulator update
*/
static int entropy_update( mbedtls_entropy_context *ctx, unsigned char source_id,
const unsigned char *data, size_t len )
{
unsigned char header[2];
unsigned char tmp[MBEDTLS_ENTROPY_BLOCK_SIZE];
size_t use_len = len;
const unsigned char *p = data;
int ret = 0;
if( use_len > MBEDTLS_ENTROPY_BLOCK_SIZE )
{
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
if( ( ret = mbedtls_sha512_ret( data, len, tmp, 0 ) ) != 0 )
goto cleanup;
#else
if( ( ret = mbedtls_sha256_ret( data, len, tmp, 0 ) ) != 0 )
goto cleanup;
#endif
p = tmp;
use_len = MBEDTLS_ENTROPY_BLOCK_SIZE;
}
header[0] = source_id;
header[1] = use_len & 0xFF;
/*
* Start the accumulator if this has not already happened. Note that
* it is sufficient to start the accumulator here only because all calls to
* gather entropy eventually execute this code.
*/
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
if( ctx->accumulator_started == 0 &&
( ret = mbedtls_sha512_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto cleanup;
else
ctx->accumulator_started = 1;
if( ( ret = mbedtls_sha512_update_ret( &ctx->accumulator, header, 2 ) ) != 0 )
goto cleanup;
ret = mbedtls_sha512_update_ret( &ctx->accumulator, p, use_len );
#else
if( ctx->accumulator_started == 0 &&
( ret = mbedtls_sha256_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto cleanup;
else
ctx->accumulator_started = 1;
if( ( ret = mbedtls_sha256_update_ret( &ctx->accumulator, header, 2 ) ) != 0 )
goto cleanup;
ret = mbedtls_sha256_update_ret( &ctx->accumulator, p, use_len );
#endif
cleanup:
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
return( ret );
}
int mbedtls_entropy_update_manual( mbedtls_entropy_context *ctx,
const unsigned char *data, size_t len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = entropy_update( ctx, MBEDTLS_ENTROPY_SOURCE_MANUAL, data, len );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Run through the different sources to add entropy to our accumulator
*/
static int entropy_gather_internal( mbedtls_entropy_context *ctx )
{
int ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
int i;
int have_one_strong = 0;
unsigned char buf[MBEDTLS_ENTROPY_MAX_GATHER];
size_t olen;
if( ctx->source_count == 0 )
return( MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED );
/*
* Run through our entropy sources
*/
for( i = 0; i < ctx->source_count; i++ )
{
if( ctx->source[i].strong == MBEDTLS_ENTROPY_SOURCE_STRONG )
have_one_strong = 1;
olen = 0;
if( ( ret = ctx->source[i].f_source( ctx->source[i].p_source,
buf, MBEDTLS_ENTROPY_MAX_GATHER, &olen ) ) != 0 )
{
goto cleanup;
}
/*
* Add if we actually gathered something
*/
if( olen > 0 )
{
if( ( ret = entropy_update( ctx, (unsigned char) i,
buf, olen ) ) != 0 )
return( ret );
ctx->source[i].size += olen;
}
}
if( have_one_strong == 0 )
ret = MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE;
cleanup:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
/*
* Thread-safe wrapper for entropy_gather_internal()
*/
int mbedtls_entropy_gather( mbedtls_entropy_context *ctx )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = entropy_gather_internal( ctx );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
int mbedtls_entropy_func( void *data, unsigned char *output, size_t len )
{
int ret, count = 0, i, thresholds_reached;
size_t strong_size;
mbedtls_entropy_context *ctx = (mbedtls_entropy_context *) data;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
if( len > MBEDTLS_ENTROPY_BLOCK_SIZE )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
#if defined(MBEDTLS_ENTROPY_NV_SEED)
/* Update the NV entropy seed before generating any entropy for outside
* use.
*/
if( ctx->initial_entropy_run == 0 )
{
ctx->initial_entropy_run = 1;
if( ( ret = mbedtls_entropy_update_nv_seed( ctx ) ) != 0 )
return( ret );
}
#endif
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
/*
* Always gather extra entropy before a call
*/
do
{
if( count++ > ENTROPY_MAX_LOOP )
{
ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
goto exit;
}
if( ( ret = entropy_gather_internal( ctx ) ) != 0 )
goto exit;
thresholds_reached = 1;
strong_size = 0;
for( i = 0; i < ctx->source_count; i++ )
{
if( ctx->source[i].size < ctx->source[i].threshold )
thresholds_reached = 0;
if( ctx->source[i].strong == MBEDTLS_ENTROPY_SOURCE_STRONG )
strong_size += ctx->source[i].size;
}
}
while( ! thresholds_reached || strong_size < MBEDTLS_ENTROPY_BLOCK_SIZE );
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
/*
* Note that at this stage it is assumed that the accumulator was started
* in a previous call to entropy_update(). If this is not guaranteed, the
* code below will fail.
*/
if( ( ret = mbedtls_sha512_finish_ret( &ctx->accumulator, buf ) ) != 0 )
goto exit;
/*
* Reset accumulator and counters and recycle existing entropy
*/
mbedtls_sha512_free( &ctx->accumulator );
mbedtls_sha512_init( &ctx->accumulator );
if( ( ret = mbedtls_sha512_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha512_update_ret( &ctx->accumulator, buf,
MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
/*
* Perform second SHA-512 on entropy
*/
if( ( ret = mbedtls_sha512_ret( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
buf, 0 ) ) != 0 )
goto exit;
#else /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
if( ( ret = mbedtls_sha256_finish_ret( &ctx->accumulator, buf ) ) != 0 )
goto exit;
/*
* Reset accumulator and counters and recycle existing entropy
*/
mbedtls_sha256_free( &ctx->accumulator );
mbedtls_sha256_init( &ctx->accumulator );
if( ( ret = mbedtls_sha256_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha256_update_ret( &ctx->accumulator, buf,
MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
/*
* Perform second SHA-256 on entropy
*/
if( ( ret = mbedtls_sha256_ret( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
buf, 0 ) ) != 0 )
goto exit;
#endif /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
for( i = 0; i < ctx->source_count; i++ )
ctx->source[i].size = 0;
memcpy( output, buf, len );
ret = 0;
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
#if defined(MBEDTLS_ENTROPY_NV_SEED)
int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx )
{
int ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
/* Read new seed and write it to NV */
if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
return( ret );
if( mbedtls_nv_seed_write( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) < 0 )
return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR );
/* Manually update the remaining stream with a separator value to diverge */
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
ret = mbedtls_entropy_update_manual( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE );
return( ret );
}
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#if defined(MBEDTLS_FS_IO)
int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path )
{
int ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
FILE *f;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
if( ( f = fopen( path, "wb" ) ) == NULL )
return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR );
if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
{
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
goto exit;
}
ret = 0;
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
fclose( f );
return( ret );
}
int mbedtls_entropy_update_seed_file( mbedtls_entropy_context *ctx, const char *path )
{
int ret = 0;
FILE *f;
size_t n;
unsigned char buf[ MBEDTLS_ENTROPY_MAX_SEED_SIZE ];
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR );
fseek( f, 0, SEEK_END );
n = (size_t) ftell( f );
fseek( f, 0, SEEK_SET );
if( n > MBEDTLS_ENTROPY_MAX_SEED_SIZE )
n = MBEDTLS_ENTROPY_MAX_SEED_SIZE;
if( fread( buf, 1, n, f ) != n )
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
else
ret = mbedtls_entropy_update_manual( ctx, buf, n );
fclose( f );
mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( ret != 0 )
return( ret );
return( mbedtls_entropy_write_seed_file( ctx, path ) );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
/*
* Dummy source function
*/
static int entropy_dummy_source( void *data, unsigned char *output,
size_t len, size_t *olen )
{
((void) data);
memset( output, 0x2a, len );
*olen = len;
return( 0 );
}
#endif /* !MBEDTLS_TEST_NULL_ENTROPY */
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
static int mbedtls_entropy_source_self_test_gather( unsigned char *buf, size_t buf_len )
{
int ret = 0;
size_t entropy_len = 0;
size_t olen = 0;
size_t attempts = buf_len;
while( attempts > 0 && entropy_len < buf_len )
{
if( ( ret = mbedtls_hardware_poll( NULL, buf + entropy_len,
buf_len - entropy_len, &olen ) ) != 0 )
return( ret );
entropy_len += olen;
attempts--;
}
if( entropy_len < buf_len )
{
ret = 1;
}
return( ret );
}
static int mbedtls_entropy_source_self_test_check_bits( const unsigned char *buf,
size_t buf_len )
{
unsigned char set= 0xFF;
unsigned char unset = 0x00;
size_t i;
for( i = 0; i < buf_len; i++ )
{
set &= buf[i];
unset |= buf[i];
}
return( set == 0xFF || unset == 0x00 );
}
/*
* A test to ensure hat the entropy sources are functioning correctly
* and there is no obvious failure. The test performs the following checks:
* - The entropy source is not providing only 0s (all bits unset) or 1s (all
* bits set).
* - The entropy source is not providing values in a pattern. Because the
* hardware could be providing data in an arbitrary length, this check polls
* the hardware entropy source twice and compares the result to ensure they
* are not equal.
* - The error code returned by the entropy source is not an error.
*/
int mbedtls_entropy_source_self_test( int verbose )
{
int ret = 0;
unsigned char buf0[2 * sizeof( unsigned long long int )];
unsigned char buf1[2 * sizeof( unsigned long long int )];
if( verbose != 0 )
mbedtls_printf( " ENTROPY_BIAS test: " );
memset( buf0, 0x00, sizeof( buf0 ) );
memset( buf1, 0x00, sizeof( buf1 ) );
if( ( ret = mbedtls_entropy_source_self_test_gather( buf0, sizeof( buf0 ) ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_entropy_source_self_test_gather( buf1, sizeof( buf1 ) ) ) != 0 )
goto cleanup;
/* Make sure that the returned values are not all 0 or 1 */
if( ( ret = mbedtls_entropy_source_self_test_check_bits( buf0, sizeof( buf0 ) ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_entropy_source_self_test_check_bits( buf1, sizeof( buf1 ) ) ) != 0 )
goto cleanup;
/* Make sure that the entropy source is not returning values in a
* pattern */
ret = memcmp( buf0, buf1, sizeof( buf0 ) ) == 0;
cleanup:
if( verbose != 0 )
{
if( ret != 0 )
mbedtls_printf( "failed\n" );
else
mbedtls_printf( "passed\n" );
mbedtls_printf( "\n" );
}
return( ret != 0 );
}
#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */
/*
* The actual entropy quality is hard to test, but we can at least
* test that the functions don't cause errors and write the correct
* amount of data to buffers.
*/
int mbedtls_entropy_self_test( int verbose )
{
int ret = 1;
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_context ctx;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 };
unsigned char acc[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 };
size_t i, j;
#endif /* !MBEDTLS_TEST_NULL_ENTROPY */
if( verbose != 0 )
mbedtls_printf( " ENTROPY test: " );
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_init( &ctx );
/* First do a gather to make sure we have default sources */
if( ( ret = mbedtls_entropy_gather( &ctx ) ) != 0 )
goto cleanup;
ret = mbedtls_entropy_add_source( &ctx, entropy_dummy_source, NULL, 16,
MBEDTLS_ENTROPY_SOURCE_WEAK );
if( ret != 0 )
goto cleanup;
if( ( ret = mbedtls_entropy_update_manual( &ctx, buf, sizeof buf ) ) != 0 )
goto cleanup;
/*
* To test that mbedtls_entropy_func writes correct number of bytes:
* - use the whole buffer and rely on ASan to detect overruns
* - collect entropy 8 times and OR the result in an accumulator:
* any byte should then be 0 with probably 2^(-64), so requiring
* each of the 32 or 64 bytes to be non-zero has a false failure rate
* of at most 2^(-58) which is acceptable.
*/
for( i = 0; i < 8; i++ )
{
if( ( ret = mbedtls_entropy_func( &ctx, buf, sizeof( buf ) ) ) != 0 )
goto cleanup;
for( j = 0; j < sizeof( buf ); j++ )
acc[j] |= buf[j];
}
for( j = 0; j < sizeof( buf ); j++ )
{
if( acc[j] == 0 )
{
ret = 1;
goto cleanup;
}
}
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
if( ( ret = mbedtls_entropy_source_self_test( 0 ) ) != 0 )
goto cleanup;
#endif
cleanup:
mbedtls_entropy_free( &ctx );
#endif /* !MBEDTLS_TEST_NULL_ENTROPY */
if( verbose != 0 )
{
if( ret != 0 )
mbedtls_printf( "failed\n" );
else
mbedtls_printf( "passed\n" );
mbedtls_printf( "\n" );
}
return( ret != 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_ENTROPY_C */

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@@ -1,189 +0,0 @@
/*
* HKDF implementation -- RFC 5869
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_HKDF_C)
#include <string.h>
#include "mbedtls/hkdf.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
int mbedtls_hkdf( const mbedtls_md_info_t *md, const unsigned char *salt,
size_t salt_len, const unsigned char *ikm, size_t ikm_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char prk[MBEDTLS_MD_MAX_SIZE];
ret = mbedtls_hkdf_extract( md, salt, salt_len, ikm, ikm_len, prk );
if( ret == 0 )
{
ret = mbedtls_hkdf_expand( md, prk, mbedtls_md_get_size( md ),
info, info_len, okm, okm_len );
}
mbedtls_platform_zeroize( prk, sizeof( prk ) );
return( ret );
}
int mbedtls_hkdf_extract( const mbedtls_md_info_t *md,
const unsigned char *salt, size_t salt_len,
const unsigned char *ikm, size_t ikm_len,
unsigned char *prk )
{
unsigned char null_salt[MBEDTLS_MD_MAX_SIZE] = { '\0' };
if( salt == NULL )
{
size_t hash_len;
if( salt_len != 0 )
{
return MBEDTLS_ERR_HKDF_BAD_INPUT_DATA;
}
hash_len = mbedtls_md_get_size( md );
if( hash_len == 0 )
{
return MBEDTLS_ERR_HKDF_BAD_INPUT_DATA;
}
salt = null_salt;
salt_len = hash_len;
}
return( mbedtls_md_hmac( md, salt, salt_len, ikm, ikm_len, prk ) );
}
int mbedtls_hkdf_expand( const mbedtls_md_info_t *md, const unsigned char *prk,
size_t prk_len, const unsigned char *info,
size_t info_len, unsigned char *okm, size_t okm_len )
{
size_t hash_len;
size_t where = 0;
size_t n;
size_t t_len = 0;
size_t i;
int ret = 0;
mbedtls_md_context_t ctx;
unsigned char t[MBEDTLS_MD_MAX_SIZE];
if( okm == NULL )
{
return( MBEDTLS_ERR_HKDF_BAD_INPUT_DATA );
}
hash_len = mbedtls_md_get_size( md );
if( prk_len < hash_len || hash_len == 0 )
{
return( MBEDTLS_ERR_HKDF_BAD_INPUT_DATA );
}
if( info == NULL )
{
info = (const unsigned char *) "";
info_len = 0;
}
n = okm_len / hash_len;
if( okm_len % hash_len != 0 )
{
n++;
}
/*
* Per RFC 5869 Section 2.3, okm_len must not exceed
* 255 times the hash length
*/
if( n > 255 )
{
return( MBEDTLS_ERR_HKDF_BAD_INPUT_DATA );
}
mbedtls_md_init( &ctx );
if( ( ret = mbedtls_md_setup( &ctx, md, 1 ) ) != 0 )
{
goto exit;
}
memset( t, 0, hash_len );
/*
* Compute T = T(1) | T(2) | T(3) | ... | T(N)
* Where T(N) is defined in RFC 5869 Section 2.3
*/
for( i = 1; i <= n; i++ )
{
size_t num_to_copy;
unsigned char c = i & 0xff;
ret = mbedtls_md_hmac_starts( &ctx, prk, prk_len );
if( ret != 0 )
{
goto exit;
}
ret = mbedtls_md_hmac_update( &ctx, t, t_len );
if( ret != 0 )
{
goto exit;
}
ret = mbedtls_md_hmac_update( &ctx, info, info_len );
if( ret != 0 )
{
goto exit;
}
/* The constant concatenated to the end of each T(n) is a single octet.
* */
ret = mbedtls_md_hmac_update( &ctx, &c, 1 );
if( ret != 0 )
{
goto exit;
}
ret = mbedtls_md_hmac_finish( &ctx, t );
if( ret != 0 )
{
goto exit;
}
num_to_copy = i != n ? hash_len : okm_len - where;
memcpy( okm + where, t, num_to_copy );
where += hash_len;
t_len = hash_len;
}
exit:
mbedtls_md_free( &ctx );
mbedtls_platform_zeroize( t, sizeof( t ) );
return( ret );
}
#endif /* MBEDTLS_HKDF_C */

View File

@@ -1,620 +0,0 @@
/*
* HMAC_DRBG implementation (NIST SP 800-90)
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The NIST SP 800-90A DRBGs are described in the following publication.
* http://csrc.nist.gov/publications/nistpubs/800-90A/SP800-90A.pdf
* References below are based on rev. 1 (January 2012).
*/
#include "common.h"
#if defined(MBEDTLS_HMAC_DRBG_C)
#include "mbedtls/hmac_drbg.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PLATFORM_C */
/*
* HMAC_DRBG context initialization
*/
void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
/*
* HMAC_DRBG update, using optional additional data (10.1.2.2)
*/
int mbedtls_hmac_drbg_update_ret( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional,
size_t add_len )
{
size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
unsigned char rounds = ( additional != NULL && add_len != 0 ) ? 2 : 1;
unsigned char sep[1];
unsigned char K[MBEDTLS_MD_MAX_SIZE];
int ret = MBEDTLS_ERR_MD_BAD_INPUT_DATA;
for( sep[0] = 0; sep[0] < rounds; sep[0]++ )
{
/* Step 1 or 4 */
if( ( ret = mbedtls_md_hmac_reset( &ctx->md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
ctx->V, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
sep, 1 ) ) != 0 )
goto exit;
if( rounds == 2 )
{
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
additional, add_len ) ) != 0 )
goto exit;
}
if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, K ) ) != 0 )
goto exit;
/* Step 2 or 5 */
if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, K, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
ctx->V, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ) ) != 0 )
goto exit;
}
exit:
mbedtls_platform_zeroize( K, sizeof( K ) );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional,
size_t add_len )
{
(void) mbedtls_hmac_drbg_update_ret( ctx, additional, add_len );
}
#endif /* MBEDTLS_DEPRECATED_REMOVED */
/*
* Simplified HMAC_DRBG initialisation (for use with deterministic ECDSA)
*/
int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
const unsigned char *data, size_t data_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
return( ret );
/*
* Set initial working state.
* Use the V memory location, which is currently all 0, to initialize the
* MD context with an all-zero key. Then set V to its initial value.
*/
if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V,
mbedtls_md_get_size( md_info ) ) ) != 0 )
return( ret );
memset( ctx->V, 0x01, mbedtls_md_get_size( md_info ) );
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, data, data_len ) ) != 0 )
return( ret );
return( 0 );
}
/*
* Internal function used both for seeding and reseeding the DRBG.
* Comments starting with arabic numbers refer to section 10.1.2.4
* of SP800-90A, while roman numbers refer to section 9.2.
*/
static int hmac_drbg_reseed_core( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t len,
int use_nonce )
{
unsigned char seed[MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT];
size_t seedlen = 0;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
{
size_t total_entropy_len;
if( use_nonce == 0 )
total_entropy_len = ctx->entropy_len;
else
total_entropy_len = ctx->entropy_len * 3 / 2;
/* III. Check input length */
if( len > MBEDTLS_HMAC_DRBG_MAX_INPUT ||
total_entropy_len + len > MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT )
{
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
}
}
memset( seed, 0, MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT );
/* IV. Gather entropy_len bytes of entropy for the seed */
if( ( ret = ctx->f_entropy( ctx->p_entropy,
seed, ctx->entropy_len ) ) != 0 )
{
return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED );
}
seedlen += ctx->entropy_len;
/* For initial seeding, allow adding of nonce generated
* from the entropy source. See Sect 8.6.7 in SP800-90A. */
if( use_nonce )
{
/* Note: We don't merge the two calls to f_entropy() in order
* to avoid requesting too much entropy from f_entropy()
* at once. Specifically, if the underlying digest is not
* SHA-1, 3 / 2 * entropy_len is at least 36 Bytes, which
* is larger than the maximum of 32 Bytes that our own
* entropy source implementation can emit in a single
* call in configurations disabling SHA-512. */
if( ( ret = ctx->f_entropy( ctx->p_entropy,
seed + seedlen,
ctx->entropy_len / 2 ) ) != 0 )
{
return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED );
}
seedlen += ctx->entropy_len / 2;
}
/* 1. Concatenate entropy and additional data if any */
if( additional != NULL && len != 0 )
{
memcpy( seed + seedlen, additional, len );
seedlen += len;
}
/* 2. Update state */
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, seed, seedlen ) ) != 0 )
goto exit;
/* 3. Reset reseed_counter */
ctx->reseed_counter = 1;
exit:
/* 4. Done */
mbedtls_platform_zeroize( seed, seedlen );
return( ret );
}
/*
* HMAC_DRBG reseeding: 10.1.2.4 + 9.2
*/
int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t len )
{
return( hmac_drbg_reseed_core( ctx, additional, len, 0 ) );
}
/*
* HMAC_DRBG initialisation (10.1.2.3 + 9.1)
*
* The nonce is not passed as a separate parameter but extracted
* from the entropy source as suggested in 8.6.7.
*/
int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
int (*f_entropy)(void *, unsigned char *, size_t),
void *p_entropy,
const unsigned char *custom,
size_t len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t md_size;
if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
return( ret );
md_size = mbedtls_md_get_size( md_info );
/*
* Set initial working state.
* Use the V memory location, which is currently all 0, to initialize the
* MD context with an all-zero key. Then set V to its initial value.
*/
if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, md_size ) ) != 0 )
return( ret );
memset( ctx->V, 0x01, md_size );
ctx->f_entropy = f_entropy;
ctx->p_entropy = p_entropy;
ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL;
if( ctx->entropy_len == 0 )
{
/*
* See SP800-57 5.6.1 (p. 65-66) for the security strength provided by
* each hash function, then according to SP800-90A rev1 10.1 table 2,
* min_entropy_len (in bits) is security_strength.
*
* (This also matches the sizes used in the NIST test vectors.)
*/
ctx->entropy_len = md_size <= 20 ? 16 : /* 160-bits hash -> 128 bits */
md_size <= 28 ? 24 : /* 224-bits hash -> 192 bits */
32; /* better (256+) -> 256 bits */
}
if( ( ret = hmac_drbg_reseed_core( ctx, custom, len,
1 /* add nonce */ ) ) != 0 )
{
return( ret );
}
return( 0 );
}
/*
* Set prediction resistance
*/
void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx,
int resistance )
{
ctx->prediction_resistance = resistance;
}
/*
* Set entropy length grabbed for seeding
*/
void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, size_t len )
{
ctx->entropy_len = len;
}
/*
* Set reseed interval
*/
void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, int interval )
{
ctx->reseed_interval = interval;
}
/*
* HMAC_DRBG random function with optional additional data:
* 10.1.2.5 (arabic) + 9.3 (Roman)
*/
int mbedtls_hmac_drbg_random_with_add( void *p_rng,
unsigned char *output, size_t out_len,
const unsigned char *additional, size_t add_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
size_t left = out_len;
unsigned char *out = output;
/* II. Check request length */
if( out_len > MBEDTLS_HMAC_DRBG_MAX_REQUEST )
return( MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG );
/* III. Check input length */
if( add_len > MBEDTLS_HMAC_DRBG_MAX_INPUT )
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
/* 1. (aka VII and IX) Check reseed counter and PR */
if( ctx->f_entropy != NULL && /* For no-reseeding instances */
( ctx->prediction_resistance == MBEDTLS_HMAC_DRBG_PR_ON ||
ctx->reseed_counter > ctx->reseed_interval ) )
{
if( ( ret = mbedtls_hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 )
return( ret );
add_len = 0; /* VII.4 */
}
/* 2. Use additional data if any */
if( additional != NULL && add_len != 0 )
{
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx,
additional, add_len ) ) != 0 )
goto exit;
}
/* 3, 4, 5. Generate bytes */
while( left != 0 )
{
size_t use_len = left > md_len ? md_len : left;
if( ( ret = mbedtls_md_hmac_reset( &ctx->md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
ctx->V, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ) ) != 0 )
goto exit;
memcpy( out, ctx->V, use_len );
out += use_len;
left -= use_len;
}
/* 6. Update */
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx,
additional, add_len ) ) != 0 )
goto exit;
/* 7. Update reseed counter */
ctx->reseed_counter++;
exit:
/* 8. Done */
return( ret );
}
/*
* HMAC_DRBG random function
*/
int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = mbedtls_hmac_drbg_random_with_add( ctx, output, out_len, NULL, 0 );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Free an HMAC_DRBG context
*/
void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx )
{
if( ctx == NULL )
return;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_md_free( &ctx->md_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_hmac_drbg_context ) );
}
#if defined(MBEDTLS_FS_IO)
int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
FILE *f;
unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
if( ( f = fopen( path, "wb" ) ) == NULL )
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
if( ( ret = mbedtls_hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 )
goto exit;
if( fwrite( buf, 1, sizeof( buf ), f ) != sizeof( buf ) )
{
ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR;
goto exit;
}
ret = 0;
exit:
fclose( f );
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
{
int ret = 0;
FILE *f = NULL;
size_t n;
unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
unsigned char c;
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
n = fread( buf, 1, sizeof( buf ), f );
if( fread( &c, 1, 1, f ) != 0 )
{
ret = MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG;
goto exit;
}
if( n == 0 || ferror( f ) )
{
ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR;
goto exit;
}
fclose( f );
f = NULL;
ret = mbedtls_hmac_drbg_update_ret( ctx, buf, n );
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( f != NULL )
fclose( f );
if( ret != 0 )
return( ret );
return( mbedtls_hmac_drbg_write_seed_file( ctx, path ) );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_SHA1_C)
/* Dummy checkup routine */
int mbedtls_hmac_drbg_self_test( int verbose )
{
(void) verbose;
return( 0 );
}
#else
#define OUTPUT_LEN 80
/* From a NIST PR=true test vector */
static const unsigned char entropy_pr[] = {
0xa0, 0xc9, 0xab, 0x58, 0xf1, 0xe2, 0xe5, 0xa4, 0xde, 0x3e, 0xbd, 0x4f,
0xf7, 0x3e, 0x9c, 0x5b, 0x64, 0xef, 0xd8, 0xca, 0x02, 0x8c, 0xf8, 0x11,
0x48, 0xa5, 0x84, 0xfe, 0x69, 0xab, 0x5a, 0xee, 0x42, 0xaa, 0x4d, 0x42,
0x17, 0x60, 0x99, 0xd4, 0x5e, 0x13, 0x97, 0xdc, 0x40, 0x4d, 0x86, 0xa3,
0x7b, 0xf5, 0x59, 0x54, 0x75, 0x69, 0x51, 0xe4 };
static const unsigned char result_pr[OUTPUT_LEN] = {
0x9a, 0x00, 0xa2, 0xd0, 0x0e, 0xd5, 0x9b, 0xfe, 0x31, 0xec, 0xb1, 0x39,
0x9b, 0x60, 0x81, 0x48, 0xd1, 0x96, 0x9d, 0x25, 0x0d, 0x3c, 0x1e, 0x94,
0x10, 0x10, 0x98, 0x12, 0x93, 0x25, 0xca, 0xb8, 0xfc, 0xcc, 0x2d, 0x54,
0x73, 0x19, 0x70, 0xc0, 0x10, 0x7a, 0xa4, 0x89, 0x25, 0x19, 0x95, 0x5e,
0x4b, 0xc6, 0x00, 0x1d, 0x7f, 0x4e, 0x6a, 0x2b, 0xf8, 0xa3, 0x01, 0xab,
0x46, 0x05, 0x5c, 0x09, 0xa6, 0x71, 0x88, 0xf1, 0xa7, 0x40, 0xee, 0xf3,
0xe1, 0x5c, 0x02, 0x9b, 0x44, 0xaf, 0x03, 0x44 };
/* From a NIST PR=false test vector */
static const unsigned char entropy_nopr[] = {
0x79, 0x34, 0x9b, 0xbf, 0x7c, 0xdd, 0xa5, 0x79, 0x95, 0x57, 0x86, 0x66,
0x21, 0xc9, 0x13, 0x83, 0x11, 0x46, 0x73, 0x3a, 0xbf, 0x8c, 0x35, 0xc8,
0xc7, 0x21, 0x5b, 0x5b, 0x96, 0xc4, 0x8e, 0x9b, 0x33, 0x8c, 0x74, 0xe3,
0xe9, 0x9d, 0xfe, 0xdf };
static const unsigned char result_nopr[OUTPUT_LEN] = {
0xc6, 0xa1, 0x6a, 0xb8, 0xd4, 0x20, 0x70, 0x6f, 0x0f, 0x34, 0xab, 0x7f,
0xec, 0x5a, 0xdc, 0xa9, 0xd8, 0xca, 0x3a, 0x13, 0x3e, 0x15, 0x9c, 0xa6,
0xac, 0x43, 0xc6, 0xf8, 0xa2, 0xbe, 0x22, 0x83, 0x4a, 0x4c, 0x0a, 0x0a,
0xff, 0xb1, 0x0d, 0x71, 0x94, 0xf1, 0xc1, 0xa5, 0xcf, 0x73, 0x22, 0xec,
0x1a, 0xe0, 0x96, 0x4e, 0xd4, 0xbf, 0x12, 0x27, 0x46, 0xe0, 0x87, 0xfd,
0xb5, 0xb3, 0xe9, 0x1b, 0x34, 0x93, 0xd5, 0xbb, 0x98, 0xfa, 0xed, 0x49,
0xe8, 0x5f, 0x13, 0x0f, 0xc8, 0xa4, 0x59, 0xb7 };
/* "Entropy" from buffer */
static size_t test_offset;
static int hmac_drbg_self_test_entropy( void *data,
unsigned char *buf, size_t len )
{
const unsigned char *p = data;
memcpy( buf, p + test_offset, len );
test_offset += len;
return( 0 );
}
#define CHK( c ) if( (c) != 0 ) \
{ \
if( verbose != 0 ) \
mbedtls_printf( "failed\n" ); \
return( 1 ); \
}
/*
* Checkup routine for HMAC_DRBG with SHA-1
*/
int mbedtls_hmac_drbg_self_test( int verbose )
{
mbedtls_hmac_drbg_context ctx;
unsigned char buf[OUTPUT_LEN];
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
mbedtls_hmac_drbg_init( &ctx );
/*
* PR = True
*/
if( verbose != 0 )
mbedtls_printf( " HMAC_DRBG (PR = True) : " );
test_offset = 0;
CHK( mbedtls_hmac_drbg_seed( &ctx, md_info,
hmac_drbg_self_test_entropy, (void *) entropy_pr,
NULL, 0 ) );
mbedtls_hmac_drbg_set_prediction_resistance( &ctx, MBEDTLS_HMAC_DRBG_PR_ON );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( memcmp( buf, result_pr, OUTPUT_LEN ) );
mbedtls_hmac_drbg_free( &ctx );
mbedtls_hmac_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
/*
* PR = False
*/
if( verbose != 0 )
mbedtls_printf( " HMAC_DRBG (PR = False) : " );
mbedtls_hmac_drbg_init( &ctx );
test_offset = 0;
CHK( mbedtls_hmac_drbg_seed( &ctx, md_info,
hmac_drbg_self_test_entropy, (void *) entropy_nopr,
NULL, 0 ) );
CHK( mbedtls_hmac_drbg_reseed( &ctx, NULL, 0 ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( memcmp( buf, result_nopr, OUTPUT_LEN ) );
mbedtls_hmac_drbg_free( &ctx );
mbedtls_hmac_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_HMAC_DRBG_C */

View File

@@ -1,890 +0,0 @@
/**
* \file mbedtls_md.c
*
* \brief Generic message digest wrapper for mbed TLS
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_MD_C)
#include "mbedtls/md.h"
#include "mbedtls/md_internal.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include "mbedtls/md2.h"
#include "mbedtls/md4.h"
#include "mbedtls/md5.h"
#include "mbedtls/ripemd160.h"
#include "mbedtls/sha1.h"
#include "mbedtls/sha256.h"
#include "mbedtls/sha512.h"
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_MD2_C)
const mbedtls_md_info_t mbedtls_md2_info = {
"MD2",
MBEDTLS_MD_MD2,
16,
16,
};
#endif
#if defined(MBEDTLS_MD4_C)
const mbedtls_md_info_t mbedtls_md4_info = {
"MD4",
MBEDTLS_MD_MD4,
16,
64,
};
#endif
#if defined(MBEDTLS_MD5_C)
const mbedtls_md_info_t mbedtls_md5_info = {
"MD5",
MBEDTLS_MD_MD5,
16,
64,
};
#endif
#if defined(MBEDTLS_RIPEMD160_C)
const mbedtls_md_info_t mbedtls_ripemd160_info = {
"RIPEMD160",
MBEDTLS_MD_RIPEMD160,
20,
64,
};
#endif
#if defined(MBEDTLS_SHA1_C)
const mbedtls_md_info_t mbedtls_sha1_info = {
"SHA1",
MBEDTLS_MD_SHA1,
20,
64,
};
#endif
#if defined(MBEDTLS_SHA256_C)
const mbedtls_md_info_t mbedtls_sha224_info = {
"SHA224",
MBEDTLS_MD_SHA224,
28,
64,
};
const mbedtls_md_info_t mbedtls_sha256_info = {
"SHA256",
MBEDTLS_MD_SHA256,
32,
64,
};
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
const mbedtls_md_info_t mbedtls_sha384_info = {
"SHA384",
MBEDTLS_MD_SHA384,
48,
128,
};
#endif
const mbedtls_md_info_t mbedtls_sha512_info = {
"SHA512",
MBEDTLS_MD_SHA512,
64,
128,
};
#endif
/*
* Reminder: update profiles in x509_crt.c when adding a new hash!
*/
static const int supported_digests[] = {
#if defined(MBEDTLS_SHA512_C)
MBEDTLS_MD_SHA512,
#if !defined(MBEDTLS_SHA512_NO_SHA384)
MBEDTLS_MD_SHA384,
#endif
#endif
#if defined(MBEDTLS_SHA256_C)
MBEDTLS_MD_SHA256,
MBEDTLS_MD_SHA224,
#endif
#if defined(MBEDTLS_SHA1_C)
MBEDTLS_MD_SHA1,
#endif
#if defined(MBEDTLS_RIPEMD160_C)
MBEDTLS_MD_RIPEMD160,
#endif
#if defined(MBEDTLS_MD5_C)
MBEDTLS_MD_MD5,
#endif
#if defined(MBEDTLS_MD4_C)
MBEDTLS_MD_MD4,
#endif
#if defined(MBEDTLS_MD2_C)
MBEDTLS_MD_MD2,
#endif
MBEDTLS_MD_NONE
};
const int *mbedtls_md_list( void )
{
return( supported_digests );
}
const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name )
{
if( NULL == md_name )
return( NULL );
/* Get the appropriate digest information */
#if defined(MBEDTLS_MD2_C)
if( !strcmp( "MD2", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_MD2 );
#endif
#if defined(MBEDTLS_MD4_C)
if( !strcmp( "MD4", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_MD4 );
#endif
#if defined(MBEDTLS_MD5_C)
if( !strcmp( "MD5", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_MD5 );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
if( !strcmp( "RIPEMD160", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_RIPEMD160 );
#endif
#if defined(MBEDTLS_SHA1_C)
if( !strcmp( "SHA1", md_name ) || !strcmp( "SHA", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
#endif
#if defined(MBEDTLS_SHA256_C)
if( !strcmp( "SHA224", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA224 );
if( !strcmp( "SHA256", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
if( !strcmp( "SHA384", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 );
#endif
if( !strcmp( "SHA512", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 );
#endif
return( NULL );
}
const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t md_type )
{
switch( md_type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( &mbedtls_md2_info );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( &mbedtls_md4_info );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( &mbedtls_md5_info );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( &mbedtls_ripemd160_info );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( &mbedtls_sha1_info );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
return( &mbedtls_sha224_info );
case MBEDTLS_MD_SHA256:
return( &mbedtls_sha256_info );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
return( &mbedtls_sha384_info );
#endif
case MBEDTLS_MD_SHA512:
return( &mbedtls_sha512_info );
#endif
default:
return( NULL );
}
}
void mbedtls_md_init( mbedtls_md_context_t *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md_context_t ) );
}
void mbedtls_md_free( mbedtls_md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return;
if( ctx->md_ctx != NULL )
{
switch( ctx->md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
mbedtls_md2_free( ctx->md_ctx );
break;
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
mbedtls_md4_free( ctx->md_ctx );
break;
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
mbedtls_md5_free( ctx->md_ctx );
break;
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
mbedtls_ripemd160_free( ctx->md_ctx );
break;
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
mbedtls_sha1_free( ctx->md_ctx );
break;
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
case MBEDTLS_MD_SHA256:
mbedtls_sha256_free( ctx->md_ctx );
break;
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
#endif
case MBEDTLS_MD_SHA512:
mbedtls_sha512_free( ctx->md_ctx );
break;
#endif
default:
/* Shouldn't happen */
break;
}
mbedtls_free( ctx->md_ctx );
}
if( ctx->hmac_ctx != NULL )
{
mbedtls_platform_zeroize( ctx->hmac_ctx,
2 * ctx->md_info->block_size );
mbedtls_free( ctx->hmac_ctx );
}
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md_context_t ) );
}
int mbedtls_md_clone( mbedtls_md_context_t *dst,
const mbedtls_md_context_t *src )
{
if( dst == NULL || dst->md_info == NULL ||
src == NULL || src->md_info == NULL ||
dst->md_info != src->md_info )
{
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
switch( src->md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
mbedtls_md2_clone( dst->md_ctx, src->md_ctx );
break;
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
mbedtls_md4_clone( dst->md_ctx, src->md_ctx );
break;
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
mbedtls_md5_clone( dst->md_ctx, src->md_ctx );
break;
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
mbedtls_ripemd160_clone( dst->md_ctx, src->md_ctx );
break;
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
mbedtls_sha1_clone( dst->md_ctx, src->md_ctx );
break;
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
case MBEDTLS_MD_SHA256:
mbedtls_sha256_clone( dst->md_ctx, src->md_ctx );
break;
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
#endif
case MBEDTLS_MD_SHA512:
mbedtls_sha512_clone( dst->md_ctx, src->md_ctx );
break;
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
return( 0 );
}
#if ! defined(MBEDTLS_DEPRECATED_REMOVED)
int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info )
{
return mbedtls_md_setup( ctx, md_info, 1 );
}
#endif
#define ALLOC( type ) \
do { \
ctx->md_ctx = mbedtls_calloc( 1, sizeof( mbedtls_##type##_context ) ); \
if( ctx->md_ctx == NULL ) \
return( MBEDTLS_ERR_MD_ALLOC_FAILED ); \
mbedtls_##type##_init( ctx->md_ctx ); \
} \
while( 0 )
int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac )
{
if( md_info == NULL || ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
ctx->md_info = md_info;
ctx->md_ctx = NULL;
ctx->hmac_ctx = NULL;
switch( md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
ALLOC( md2 );
break;
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
ALLOC( md4 );
break;
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
ALLOC( md5 );
break;
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
ALLOC( ripemd160 );
break;
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
ALLOC( sha1 );
break;
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
case MBEDTLS_MD_SHA256:
ALLOC( sha256 );
break;
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
#endif
case MBEDTLS_MD_SHA512:
ALLOC( sha512 );
break;
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
if( hmac != 0 )
{
ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size );
if( ctx->hmac_ctx == NULL )
{
mbedtls_md_free( ctx );
return( MBEDTLS_ERR_MD_ALLOC_FAILED );
}
}
return( 0 );
}
#undef ALLOC
int mbedtls_md_starts( mbedtls_md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
switch( ctx->md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( mbedtls_md2_starts_ret( ctx->md_ctx ) );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( mbedtls_md4_starts_ret( ctx->md_ctx ) );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( mbedtls_md5_starts_ret( ctx->md_ctx ) );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( mbedtls_ripemd160_starts_ret( ctx->md_ctx ) );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( mbedtls_sha1_starts_ret( ctx->md_ctx ) );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
return( mbedtls_sha256_starts_ret( ctx->md_ctx, 1 ) );
case MBEDTLS_MD_SHA256:
return( mbedtls_sha256_starts_ret( ctx->md_ctx, 0 ) );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
return( mbedtls_sha512_starts_ret( ctx->md_ctx, 1 ) );
#endif
case MBEDTLS_MD_SHA512:
return( mbedtls_sha512_starts_ret( ctx->md_ctx, 0 ) );
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
}
int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
switch( ctx->md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( mbedtls_md2_update_ret( ctx->md_ctx, input, ilen ) );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( mbedtls_md4_update_ret( ctx->md_ctx, input, ilen ) );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( mbedtls_md5_update_ret( ctx->md_ctx, input, ilen ) );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( mbedtls_ripemd160_update_ret( ctx->md_ctx, input, ilen ) );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( mbedtls_sha1_update_ret( ctx->md_ctx, input, ilen ) );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
case MBEDTLS_MD_SHA256:
return( mbedtls_sha256_update_ret( ctx->md_ctx, input, ilen ) );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
#endif
case MBEDTLS_MD_SHA512:
return( mbedtls_sha512_update_ret( ctx->md_ctx, input, ilen ) );
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
}
int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
switch( ctx->md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( mbedtls_md2_finish_ret( ctx->md_ctx, output ) );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( mbedtls_md4_finish_ret( ctx->md_ctx, output ) );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( mbedtls_md5_finish_ret( ctx->md_ctx, output ) );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( mbedtls_ripemd160_finish_ret( ctx->md_ctx, output ) );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( mbedtls_sha1_finish_ret( ctx->md_ctx, output ) );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
case MBEDTLS_MD_SHA256:
return( mbedtls_sha256_finish_ret( ctx->md_ctx, output ) );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
#endif
case MBEDTLS_MD_SHA512:
return( mbedtls_sha512_finish_ret( ctx->md_ctx, output ) );
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
}
int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
unsigned char *output )
{
if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
switch( md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( mbedtls_md2_ret( input, ilen, output ) );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( mbedtls_md4_ret( input, ilen, output ) );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( mbedtls_md5_ret( input, ilen, output ) );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( mbedtls_ripemd160_ret( input, ilen, output ) );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( mbedtls_sha1_ret( input, ilen, output ) );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
return( mbedtls_sha256_ret( input, ilen, output, 1 ) );
case MBEDTLS_MD_SHA256:
return( mbedtls_sha256_ret( input, ilen, output, 0 ) );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
return( mbedtls_sha512_ret( input, ilen, output, 1 ) );
#endif
case MBEDTLS_MD_SHA512:
return( mbedtls_sha512_ret( input, ilen, output, 0 ) );
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
}
#if defined(MBEDTLS_FS_IO)
int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
FILE *f;
size_t n;
mbedtls_md_context_t ctx;
unsigned char buf[1024];
if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_MD_FILE_IO_ERROR );
mbedtls_md_init( &ctx );
if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 )
goto cleanup;
while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
if( ( ret = mbedtls_md_update( &ctx, buf, n ) ) != 0 )
goto cleanup;
if( ferror( f ) != 0 )
ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
else
ret = mbedtls_md_finish( &ctx, output );
cleanup:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
fclose( f );
mbedtls_md_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char sum[MBEDTLS_MD_MAX_SIZE];
unsigned char *ipad, *opad;
size_t i;
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
if( keylen > (size_t) ctx->md_info->block_size )
{
if( ( ret = mbedtls_md_starts( ctx ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_update( ctx, key, keylen ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_finish( ctx, sum ) ) != 0 )
goto cleanup;
keylen = ctx->md_info->size;
key = sum;
}
ipad = (unsigned char *) ctx->hmac_ctx;
opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
memset( ipad, 0x36, ctx->md_info->block_size );
memset( opad, 0x5C, ctx->md_info->block_size );
for( i = 0; i < keylen; i++ )
{
ipad[i] = (unsigned char)( ipad[i] ^ key[i] );
opad[i] = (unsigned char)( opad[i] ^ key[i] );
}
if( ( ret = mbedtls_md_starts( ctx ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_update( ctx, ipad,
ctx->md_info->block_size ) ) != 0 )
goto cleanup;
cleanup:
mbedtls_platform_zeroize( sum, sizeof( sum ) );
return( ret );
}
int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( mbedtls_md_update( ctx, input, ilen ) );
}
int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char tmp[MBEDTLS_MD_MAX_SIZE];
unsigned char *opad;
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
if( ( ret = mbedtls_md_finish( ctx, tmp ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_starts( ctx ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_update( ctx, opad,
ctx->md_info->block_size ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_update( ctx, tmp,
ctx->md_info->size ) ) != 0 )
return( ret );
return( mbedtls_md_finish( ctx, output ) );
}
int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *ipad;
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
ipad = (unsigned char *) ctx->hmac_ctx;
if( ( ret = mbedtls_md_starts( ctx ) ) != 0 )
return( ret );
return( mbedtls_md_update( ctx, ipad, ctx->md_info->block_size ) );
}
int mbedtls_md_hmac( const mbedtls_md_info_t *md_info,
const unsigned char *key, size_t keylen,
const unsigned char *input, size_t ilen,
unsigned char *output )
{
mbedtls_md_context_t ctx;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
mbedtls_md_init( &ctx );
if( ( ret = mbedtls_md_setup( &ctx, md_info, 1 ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_hmac_starts( &ctx, key, keylen ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_hmac_update( &ctx, input, ilen ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_hmac_finish( &ctx, output ) ) != 0 )
goto cleanup;
cleanup:
mbedtls_md_free( &ctx );
return( ret );
}
int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
switch( ctx->md_info->type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( mbedtls_internal_md2_process( ctx->md_ctx ) );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( mbedtls_internal_md4_process( ctx->md_ctx, data ) );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( mbedtls_internal_md5_process( ctx->md_ctx, data ) );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( mbedtls_internal_ripemd160_process( ctx->md_ctx, data ) );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( mbedtls_internal_sha1_process( ctx->md_ctx, data ) );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
case MBEDTLS_MD_SHA256:
return( mbedtls_internal_sha256_process( ctx->md_ctx, data ) );
#endif
#if defined(MBEDTLS_SHA512_C)
#if !defined(MBEDTLS_SHA512_NO_SHA384)
case MBEDTLS_MD_SHA384:
#endif
case MBEDTLS_MD_SHA512:
return( mbedtls_internal_sha512_process( ctx->md_ctx, data ) );
#endif
default:
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
}
unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info )
{
if( md_info == NULL )
return( 0 );
return md_info->size;
}
mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info )
{
if( md_info == NULL )
return( MBEDTLS_MD_NONE );
return md_info->type;
}
const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info )
{
if( md_info == NULL )
return( NULL );
return md_info->name;
}
#endif /* MBEDTLS_MD_C */

View File

@@ -1,479 +0,0 @@
/*
* RFC 1186/1320 compliant MD4 implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The MD4 algorithm was designed by Ron Rivest in 1990.
*
* http://www.ietf.org/rfc/rfc1186.txt
* http://www.ietf.org/rfc/rfc1320.txt
*/
#include "common.h"
#if defined(MBEDTLS_MD4_C)
#include "mbedtls/md4.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_MD4_ALT)
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
void mbedtls_md4_init( mbedtls_md4_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md4_context ) );
}
void mbedtls_md4_free( mbedtls_md4_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md4_context ) );
}
void mbedtls_md4_clone( mbedtls_md4_context *dst,
const mbedtls_md4_context *src )
{
*dst = *src;
}
/*
* MD4 context setup
*/
int mbedtls_md4_starts_ret( mbedtls_md4_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_starts( mbedtls_md4_context *ctx )
{
mbedtls_md4_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_MD4_PROCESS_ALT)
int mbedtls_internal_md4_process( mbedtls_md4_context *ctx,
const unsigned char data[64] )
{
uint32_t X[16], A, B, C, D;
GET_UINT32_LE( X[ 0], data, 0 );
GET_UINT32_LE( X[ 1], data, 4 );
GET_UINT32_LE( X[ 2], data, 8 );
GET_UINT32_LE( X[ 3], data, 12 );
GET_UINT32_LE( X[ 4], data, 16 );
GET_UINT32_LE( X[ 5], data, 20 );
GET_UINT32_LE( X[ 6], data, 24 );
GET_UINT32_LE( X[ 7], data, 28 );
GET_UINT32_LE( X[ 8], data, 32 );
GET_UINT32_LE( X[ 9], data, 36 );
GET_UINT32_LE( X[10], data, 40 );
GET_UINT32_LE( X[11], data, 44 );
GET_UINT32_LE( X[12], data, 48 );
GET_UINT32_LE( X[13], data, 52 );
GET_UINT32_LE( X[14], data, 56 );
GET_UINT32_LE( X[15], data, 60 );
#define S(x,n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
#define F(x, y, z) (((x) & (y)) | ((~(x)) & (z)))
#define P(a,b,c,d,x,s) \
do \
{ \
(a) += F((b),(c),(d)) + (x); \
(a) = S((a),(s)); \
} while( 0 )
P( A, B, C, D, X[ 0], 3 );
P( D, A, B, C, X[ 1], 7 );
P( C, D, A, B, X[ 2], 11 );
P( B, C, D, A, X[ 3], 19 );
P( A, B, C, D, X[ 4], 3 );
P( D, A, B, C, X[ 5], 7 );
P( C, D, A, B, X[ 6], 11 );
P( B, C, D, A, X[ 7], 19 );
P( A, B, C, D, X[ 8], 3 );
P( D, A, B, C, X[ 9], 7 );
P( C, D, A, B, X[10], 11 );
P( B, C, D, A, X[11], 19 );
P( A, B, C, D, X[12], 3 );
P( D, A, B, C, X[13], 7 );
P( C, D, A, B, X[14], 11 );
P( B, C, D, A, X[15], 19 );
#undef P
#undef F
#define F(x,y,z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
#define P(a,b,c,d,x,s) \
do \
{ \
(a) += F((b),(c),(d)) + (x) + 0x5A827999; \
(a) = S((a),(s)); \
} while( 0 )
P( A, B, C, D, X[ 0], 3 );
P( D, A, B, C, X[ 4], 5 );
P( C, D, A, B, X[ 8], 9 );
P( B, C, D, A, X[12], 13 );
P( A, B, C, D, X[ 1], 3 );
P( D, A, B, C, X[ 5], 5 );
P( C, D, A, B, X[ 9], 9 );
P( B, C, D, A, X[13], 13 );
P( A, B, C, D, X[ 2], 3 );
P( D, A, B, C, X[ 6], 5 );
P( C, D, A, B, X[10], 9 );
P( B, C, D, A, X[14], 13 );
P( A, B, C, D, X[ 3], 3 );
P( D, A, B, C, X[ 7], 5 );
P( C, D, A, B, X[11], 9 );
P( B, C, D, A, X[15], 13 );
#undef P
#undef F
#define F(x,y,z) ((x) ^ (y) ^ (z))
#define P(a,b,c,d,x,s) \
do \
{ \
(a) += F((b),(c),(d)) + (x) + 0x6ED9EBA1; \
(a) = S((a),(s)); \
} while( 0 )
P( A, B, C, D, X[ 0], 3 );
P( D, A, B, C, X[ 8], 9 );
P( C, D, A, B, X[ 4], 11 );
P( B, C, D, A, X[12], 15 );
P( A, B, C, D, X[ 2], 3 );
P( D, A, B, C, X[10], 9 );
P( C, D, A, B, X[ 6], 11 );
P( B, C, D, A, X[14], 15 );
P( A, B, C, D, X[ 1], 3 );
P( D, A, B, C, X[ 9], 9 );
P( C, D, A, B, X[ 5], 11 );
P( B, C, D, A, X[13], 15 );
P( A, B, C, D, X[ 3], 3 );
P( D, A, B, C, X[11], 9 );
P( C, D, A, B, X[ 7], 11 );
P( B, C, D, A, X[15], 15 );
#undef F
#undef P
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_process( mbedtls_md4_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_md4_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_MD4_PROCESS_ALT */
/*
* MD4 process buffer
*/
int mbedtls_md4_update_ret( mbedtls_md4_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t fill;
uint32_t left;
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left),
(void *) input, fill );
if( ( ret = mbedtls_internal_md4_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_md4_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
{
memcpy( (void *) (ctx->buffer + left),
(void *) input, ilen );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_update( mbedtls_md4_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_md4_update_ret( ctx, input, ilen );
}
#endif
static const unsigned char md4_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/*
* MD4 final digest
*/
int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx,
unsigned char output[16] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint32_t last, padn;
uint32_t high, low;
unsigned char msglen[8];
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_LE( low, msglen, 0 );
PUT_UINT32_LE( high, msglen, 4 );
last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
ret = mbedtls_md4_update_ret( ctx, (unsigned char *)md4_padding, padn );
if( ret != 0 )
return( ret );
if( ( ret = mbedtls_md4_update_ret( ctx, msglen, 8 ) ) != 0 )
return( ret );
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_finish( mbedtls_md4_context *ctx,
unsigned char output[16] )
{
mbedtls_md4_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_MD4_ALT */
/*
* output = MD4( input buffer )
*/
int mbedtls_md4_ret( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_md4_context ctx;
mbedtls_md4_init( &ctx );
if( ( ret = mbedtls_md4_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md4_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md4_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_md4_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
mbedtls_md4_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* RFC 1320 test vectors
*/
static const unsigned char md4_test_str[7][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" }
};
static const size_t md4_test_strlen[7] =
{
0, 1, 3, 14, 26, 62, 80
};
static const unsigned char md4_test_sum[7][16] =
{
{ 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31,
0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 },
{ 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46,
0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 },
{ 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52,
0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D },
{ 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8,
0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B },
{ 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD,
0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 },
{ 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35,
0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 },
{ 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19,
0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 }
};
/*
* Checkup routine
*/
int mbedtls_md4_self_test( int verbose )
{
int i, ret = 0;
unsigned char md4sum[16];
for( i = 0; i < 7; i++ )
{
if( verbose != 0 )
mbedtls_printf( " MD4 test #%d: ", i + 1 );
ret = mbedtls_md4_ret( md4_test_str[i], md4_test_strlen[i], md4sum );
if( ret != 0 )
goto fail;
if( memcmp( md4sum, md4_test_sum[i], 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MD4_C */

View File

@@ -1,493 +0,0 @@
/*
* RFC 1321 compliant MD5 implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The MD5 algorithm was designed by Ron Rivest in 1991.
*
* http://www.ietf.org/rfc/rfc1321.txt
*/
#include "common.h"
#if defined(MBEDTLS_MD5_C)
#include "mbedtls/md5.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_MD5_ALT)
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
void mbedtls_md5_init( mbedtls_md5_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md5_context ) );
}
void mbedtls_md5_free( mbedtls_md5_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md5_context ) );
}
void mbedtls_md5_clone( mbedtls_md5_context *dst,
const mbedtls_md5_context *src )
{
*dst = *src;
}
/*
* MD5 context setup
*/
int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_starts( mbedtls_md5_context *ctx )
{
mbedtls_md5_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_MD5_PROCESS_ALT)
int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
const unsigned char data[64] )
{
uint32_t X[16], A, B, C, D;
GET_UINT32_LE( X[ 0], data, 0 );
GET_UINT32_LE( X[ 1], data, 4 );
GET_UINT32_LE( X[ 2], data, 8 );
GET_UINT32_LE( X[ 3], data, 12 );
GET_UINT32_LE( X[ 4], data, 16 );
GET_UINT32_LE( X[ 5], data, 20 );
GET_UINT32_LE( X[ 6], data, 24 );
GET_UINT32_LE( X[ 7], data, 28 );
GET_UINT32_LE( X[ 8], data, 32 );
GET_UINT32_LE( X[ 9], data, 36 );
GET_UINT32_LE( X[10], data, 40 );
GET_UINT32_LE( X[11], data, 44 );
GET_UINT32_LE( X[12], data, 48 );
GET_UINT32_LE( X[13], data, 52 );
GET_UINT32_LE( X[14], data, 56 );
GET_UINT32_LE( X[15], data, 60 );
#define S(x,n) \
( ( (x) << (n) ) | ( ( (x) & 0xFFFFFFFF) >> ( 32 - (n) ) ) )
#define P(a,b,c,d,k,s,t) \
do \
{ \
(a) += F((b),(c),(d)) + X[(k)] + (t); \
(a) = S((a),(s)) + (b); \
} while( 0 )
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
#define F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
P( A, B, C, D, 0, 7, 0xD76AA478 );
P( D, A, B, C, 1, 12, 0xE8C7B756 );
P( C, D, A, B, 2, 17, 0x242070DB );
P( B, C, D, A, 3, 22, 0xC1BDCEEE );
P( A, B, C, D, 4, 7, 0xF57C0FAF );
P( D, A, B, C, 5, 12, 0x4787C62A );
P( C, D, A, B, 6, 17, 0xA8304613 );
P( B, C, D, A, 7, 22, 0xFD469501 );
P( A, B, C, D, 8, 7, 0x698098D8 );
P( D, A, B, C, 9, 12, 0x8B44F7AF );
P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
P( B, C, D, A, 11, 22, 0x895CD7BE );
P( A, B, C, D, 12, 7, 0x6B901122 );
P( D, A, B, C, 13, 12, 0xFD987193 );
P( C, D, A, B, 14, 17, 0xA679438E );
P( B, C, D, A, 15, 22, 0x49B40821 );
#undef F
#define F(x,y,z) ((y) ^ ((z) & ((x) ^ (y))))
P( A, B, C, D, 1, 5, 0xF61E2562 );
P( D, A, B, C, 6, 9, 0xC040B340 );
P( C, D, A, B, 11, 14, 0x265E5A51 );
P( B, C, D, A, 0, 20, 0xE9B6C7AA );
P( A, B, C, D, 5, 5, 0xD62F105D );
P( D, A, B, C, 10, 9, 0x02441453 );
P( C, D, A, B, 15, 14, 0xD8A1E681 );
P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
P( A, B, C, D, 9, 5, 0x21E1CDE6 );
P( D, A, B, C, 14, 9, 0xC33707D6 );
P( C, D, A, B, 3, 14, 0xF4D50D87 );
P( B, C, D, A, 8, 20, 0x455A14ED );
P( A, B, C, D, 13, 5, 0xA9E3E905 );
P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
P( C, D, A, B, 7, 14, 0x676F02D9 );
P( B, C, D, A, 12, 20, 0x8D2A4C8A );
#undef F
#define F(x,y,z) ((x) ^ (y) ^ (z))
P( A, B, C, D, 5, 4, 0xFFFA3942 );
P( D, A, B, C, 8, 11, 0x8771F681 );
P( C, D, A, B, 11, 16, 0x6D9D6122 );
P( B, C, D, A, 14, 23, 0xFDE5380C );
P( A, B, C, D, 1, 4, 0xA4BEEA44 );
P( D, A, B, C, 4, 11, 0x4BDECFA9 );
P( C, D, A, B, 7, 16, 0xF6BB4B60 );
P( B, C, D, A, 10, 23, 0xBEBFBC70 );
P( A, B, C, D, 13, 4, 0x289B7EC6 );
P( D, A, B, C, 0, 11, 0xEAA127FA );
P( C, D, A, B, 3, 16, 0xD4EF3085 );
P( B, C, D, A, 6, 23, 0x04881D05 );
P( A, B, C, D, 9, 4, 0xD9D4D039 );
P( D, A, B, C, 12, 11, 0xE6DB99E5 );
P( C, D, A, B, 15, 16, 0x1FA27CF8 );
P( B, C, D, A, 2, 23, 0xC4AC5665 );
#undef F
#define F(x,y,z) ((y) ^ ((x) | ~(z)))
P( A, B, C, D, 0, 6, 0xF4292244 );
P( D, A, B, C, 7, 10, 0x432AFF97 );
P( C, D, A, B, 14, 15, 0xAB9423A7 );
P( B, C, D, A, 5, 21, 0xFC93A039 );
P( A, B, C, D, 12, 6, 0x655B59C3 );
P( D, A, B, C, 3, 10, 0x8F0CCC92 );
P( C, D, A, B, 10, 15, 0xFFEFF47D );
P( B, C, D, A, 1, 21, 0x85845DD1 );
P( A, B, C, D, 8, 6, 0x6FA87E4F );
P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
P( C, D, A, B, 6, 15, 0xA3014314 );
P( B, C, D, A, 13, 21, 0x4E0811A1 );
P( A, B, C, D, 4, 6, 0xF7537E82 );
P( D, A, B, C, 11, 10, 0xBD3AF235 );
P( C, D, A, B, 2, 15, 0x2AD7D2BB );
P( B, C, D, A, 9, 21, 0xEB86D391 );
#undef F
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_process( mbedtls_md5_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_md5_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_MD5_PROCESS_ALT */
/*
* MD5 process buffer
*/
int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t fill;
uint32_t left;
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
{
memcpy( (void *) (ctx->buffer + left), input, ilen );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_update( mbedtls_md5_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_md5_update_ret( ctx, input, ilen );
}
#endif
/*
* MD5 final digest
*/
int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
unsigned char output[16] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint32_t used;
uint32_t high, low;
/*
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
*/
used = ctx->total[0] & 0x3F;
ctx->buffer[used++] = 0x80;
if( used <= 56 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 56 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 64 - used );
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 56 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_LE( low, ctx->buffer, 56 );
PUT_UINT32_LE( high, ctx->buffer, 60 );
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_finish( mbedtls_md5_context *ctx,
unsigned char output[16] )
{
mbedtls_md5_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_MD5_ALT */
/*
* output = MD5( input buffer )
*/
int mbedtls_md5_ret( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_md5_context ctx;
mbedtls_md5_init( &ctx );
if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_md5_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
mbedtls_md5_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* RFC 1321 test vectors
*/
static const unsigned char md5_test_buf[7][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" }
};
static const size_t md5_test_buflen[7] =
{
0, 1, 3, 14, 26, 62, 80
};
static const unsigned char md5_test_sum[7][16] =
{
{ 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
{ 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
{ 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
{ 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
{ 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
{ 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
{ 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
};
/*
* Checkup routine
*/
int mbedtls_md5_self_test( int verbose )
{
int i, ret = 0;
unsigned char md5sum[16];
for( i = 0; i < 7; i++ )
{
if( verbose != 0 )
mbedtls_printf( " MD5 test #%d: ", i + 1 );
ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
if( ret != 0 )
goto fail;
if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MD5_C */

View File

@@ -1,744 +0,0 @@
/*
* Buffer-based memory allocator
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
#include "mbedtls/memory_buffer_alloc.h"
/* No need for the header guard as MBEDTLS_MEMORY_BUFFER_ALLOC_C
is dependent upon MBEDTLS_PLATFORM_C */
#include "mbedtls/platform.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_MEMORY_BACKTRACE)
#include <execinfo.h>
#endif
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
#define MAGIC1 0xFF00AA55
#define MAGIC2 0xEE119966
#define MAX_BT 20
typedef struct _memory_header memory_header;
struct _memory_header
{
size_t magic1;
size_t size;
size_t alloc;
memory_header *prev;
memory_header *next;
memory_header *prev_free;
memory_header *next_free;
#if defined(MBEDTLS_MEMORY_BACKTRACE)
char **trace;
size_t trace_count;
#endif
size_t magic2;
};
typedef struct
{
unsigned char *buf;
size_t len;
memory_header *first;
memory_header *first_free;
int verify;
#if defined(MBEDTLS_MEMORY_DEBUG)
size_t alloc_count;
size_t free_count;
size_t total_used;
size_t maximum_used;
size_t header_count;
size_t maximum_header_count;
#endif
#if defined(MBEDTLS_THREADING_C)
mbedtls_threading_mutex_t mutex;
#endif
}
buffer_alloc_ctx;
static buffer_alloc_ctx heap;
#if defined(MBEDTLS_MEMORY_DEBUG)
static void debug_header( memory_header *hdr )
{
#if defined(MBEDTLS_MEMORY_BACKTRACE)
size_t i;
#endif
mbedtls_fprintf( stderr, "HDR: PTR(%10zu), PREV(%10zu), NEXT(%10zu), "
"ALLOC(%zu), SIZE(%10zu)\n",
(size_t) hdr, (size_t) hdr->prev, (size_t) hdr->next,
hdr->alloc, hdr->size );
mbedtls_fprintf( stderr, " FPREV(%10zu), FNEXT(%10zu)\n",
(size_t) hdr->prev_free, (size_t) hdr->next_free );
#if defined(MBEDTLS_MEMORY_BACKTRACE)
mbedtls_fprintf( stderr, "TRACE: \n" );
for( i = 0; i < hdr->trace_count; i++ )
mbedtls_fprintf( stderr, "%s\n", hdr->trace[i] );
mbedtls_fprintf( stderr, "\n" );
#endif
}
static void debug_chain( void )
{
memory_header *cur = heap.first;
mbedtls_fprintf( stderr, "\nBlock list\n" );
while( cur != NULL )
{
debug_header( cur );
cur = cur->next;
}
mbedtls_fprintf( stderr, "Free list\n" );
cur = heap.first_free;
while( cur != NULL )
{
debug_header( cur );
cur = cur->next_free;
}
}
#endif /* MBEDTLS_MEMORY_DEBUG */
static int verify_header( memory_header *hdr )
{
if( hdr->magic1 != MAGIC1 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: MAGIC1 mismatch\n" );
#endif
return( 1 );
}
if( hdr->magic2 != MAGIC2 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: MAGIC2 mismatch\n" );
#endif
return( 1 );
}
if( hdr->alloc > 1 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: alloc has illegal value\n" );
#endif
return( 1 );
}
if( hdr->prev != NULL && hdr->prev == hdr->next )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: prev == next\n" );
#endif
return( 1 );
}
if( hdr->prev_free != NULL && hdr->prev_free == hdr->next_free )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: prev_free == next_free\n" );
#endif
return( 1 );
}
return( 0 );
}
static int verify_chain( void )
{
memory_header *prv = heap.first, *cur;
if( prv == NULL || verify_header( prv ) != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification of first header "
"failed\n" );
#endif
return( 1 );
}
if( heap.first->prev != NULL )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification failed: "
"first->prev != NULL\n" );
#endif
return( 1 );
}
cur = heap.first->next;
while( cur != NULL )
{
if( verify_header( cur ) != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification of header "
"failed\n" );
#endif
return( 1 );
}
if( cur->prev != prv )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification failed: "
"cur->prev != prv\n" );
#endif
return( 1 );
}
prv = cur;
cur = cur->next;
}
return( 0 );
}
static void *buffer_alloc_calloc( size_t n, size_t size )
{
memory_header *new, *cur = heap.first_free;
unsigned char *p;
void *ret;
size_t original_len, len;
#if defined(MBEDTLS_MEMORY_BACKTRACE)
void *trace_buffer[MAX_BT];
size_t trace_cnt;
#endif
if( heap.buf == NULL || heap.first == NULL )
return( NULL );
original_len = len = n * size;
if( n == 0 || size == 0 || len / n != size )
return( NULL );
else if( len > (size_t)-MBEDTLS_MEMORY_ALIGN_MULTIPLE )
return( NULL );
if( len % MBEDTLS_MEMORY_ALIGN_MULTIPLE )
{
len -= len % MBEDTLS_MEMORY_ALIGN_MULTIPLE;
len += MBEDTLS_MEMORY_ALIGN_MULTIPLE;
}
// Find block that fits
//
while( cur != NULL )
{
if( cur->size >= len )
break;
cur = cur->next_free;
}
if( cur == NULL )
return( NULL );
if( cur->alloc != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: block in free_list but allocated "
"data\n" );
#endif
mbedtls_exit( 1 );
}
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.alloc_count++;
#endif
// Found location, split block if > memory_header + 4 room left
//
if( cur->size - len < sizeof(memory_header) +
MBEDTLS_MEMORY_ALIGN_MULTIPLE )
{
cur->alloc = 1;
// Remove from free_list
//
if( cur->prev_free != NULL )
cur->prev_free->next_free = cur->next_free;
else
heap.first_free = cur->next_free;
if( cur->next_free != NULL )
cur->next_free->prev_free = cur->prev_free;
cur->prev_free = NULL;
cur->next_free = NULL;
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.total_used += cur->size;
if( heap.total_used > heap.maximum_used )
heap.maximum_used = heap.total_used;
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE)
trace_cnt = backtrace( trace_buffer, MAX_BT );
cur->trace = backtrace_symbols( trace_buffer, trace_cnt );
cur->trace_count = trace_cnt;
#endif
if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 )
mbedtls_exit( 1 );
ret = (unsigned char *) cur + sizeof( memory_header );
memset( ret, 0, original_len );
return( ret );
}
p = ( (unsigned char *) cur ) + sizeof(memory_header) + len;
new = (memory_header *) p;
new->size = cur->size - len - sizeof(memory_header);
new->alloc = 0;
new->prev = cur;
new->next = cur->next;
#if defined(MBEDTLS_MEMORY_BACKTRACE)
new->trace = NULL;
new->trace_count = 0;
#endif
new->magic1 = MAGIC1;
new->magic2 = MAGIC2;
if( new->next != NULL )
new->next->prev = new;
// Replace cur with new in free_list
//
new->prev_free = cur->prev_free;
new->next_free = cur->next_free;
if( new->prev_free != NULL )
new->prev_free->next_free = new;
else
heap.first_free = new;
if( new->next_free != NULL )
new->next_free->prev_free = new;
cur->alloc = 1;
cur->size = len;
cur->next = new;
cur->prev_free = NULL;
cur->next_free = NULL;
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.header_count++;
if( heap.header_count > heap.maximum_header_count )
heap.maximum_header_count = heap.header_count;
heap.total_used += cur->size;
if( heap.total_used > heap.maximum_used )
heap.maximum_used = heap.total_used;
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE)
trace_cnt = backtrace( trace_buffer, MAX_BT );
cur->trace = backtrace_symbols( trace_buffer, trace_cnt );
cur->trace_count = trace_cnt;
#endif
if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 )
mbedtls_exit( 1 );
ret = (unsigned char *) cur + sizeof( memory_header );
memset( ret, 0, original_len );
return( ret );
}
static void buffer_alloc_free( void *ptr )
{
memory_header *hdr, *old = NULL;
unsigned char *p = (unsigned char *) ptr;
if( ptr == NULL || heap.buf == NULL || heap.first == NULL )
return;
if( p < heap.buf || p >= heap.buf + heap.len )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: mbedtls_free() outside of managed "
"space\n" );
#endif
mbedtls_exit( 1 );
}
p -= sizeof(memory_header);
hdr = (memory_header *) p;
if( verify_header( hdr ) != 0 )
mbedtls_exit( 1 );
if( hdr->alloc != 1 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: mbedtls_free() on unallocated "
"data\n" );
#endif
mbedtls_exit( 1 );
}
hdr->alloc = 0;
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.free_count++;
heap.total_used -= hdr->size;
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE)
free( hdr->trace );
hdr->trace = NULL;
hdr->trace_count = 0;
#endif
// Regroup with block before
//
if( hdr->prev != NULL && hdr->prev->alloc == 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.header_count--;
#endif
hdr->prev->size += sizeof(memory_header) + hdr->size;
hdr->prev->next = hdr->next;
old = hdr;
hdr = hdr->prev;
if( hdr->next != NULL )
hdr->next->prev = hdr;
memset( old, 0, sizeof(memory_header) );
}
// Regroup with block after
//
if( hdr->next != NULL && hdr->next->alloc == 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.header_count--;
#endif
hdr->size += sizeof(memory_header) + hdr->next->size;
old = hdr->next;
hdr->next = hdr->next->next;
if( hdr->prev_free != NULL || hdr->next_free != NULL )
{
if( hdr->prev_free != NULL )
hdr->prev_free->next_free = hdr->next_free;
else
heap.first_free = hdr->next_free;
if( hdr->next_free != NULL )
hdr->next_free->prev_free = hdr->prev_free;
}
hdr->prev_free = old->prev_free;
hdr->next_free = old->next_free;
if( hdr->prev_free != NULL )
hdr->prev_free->next_free = hdr;
else
heap.first_free = hdr;
if( hdr->next_free != NULL )
hdr->next_free->prev_free = hdr;
if( hdr->next != NULL )
hdr->next->prev = hdr;
memset( old, 0, sizeof(memory_header) );
}
// Prepend to free_list if we have not merged
// (Does not have to stay in same order as prev / next list)
//
if( old == NULL )
{
hdr->next_free = heap.first_free;
if( heap.first_free != NULL )
heap.first_free->prev_free = hdr;
heap.first_free = hdr;
}
if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_FREE ) && verify_chain() != 0 )
mbedtls_exit( 1 );
}
void mbedtls_memory_buffer_set_verify( int verify )
{
heap.verify = verify;
}
int mbedtls_memory_buffer_alloc_verify( void )
{
return verify_chain();
}
#if defined(MBEDTLS_MEMORY_DEBUG)
void mbedtls_memory_buffer_alloc_status( void )
{
mbedtls_fprintf( stderr,
"Current use: %zu blocks / %zu bytes, max: %zu blocks / "
"%zu bytes (total %zu bytes), alloc / free: %zu / %zu\n",
heap.header_count, heap.total_used,
heap.maximum_header_count, heap.maximum_used,
heap.maximum_header_count * sizeof( memory_header )
+ heap.maximum_used,
heap.alloc_count, heap.free_count );
if( heap.first->next == NULL )
{
mbedtls_fprintf( stderr, "All memory de-allocated in stack buffer\n" );
}
else
{
mbedtls_fprintf( stderr, "Memory currently allocated:\n" );
debug_chain();
}
}
void mbedtls_memory_buffer_alloc_max_get( size_t *max_used, size_t *max_blocks )
{
*max_used = heap.maximum_used;
*max_blocks = heap.maximum_header_count;
}
void mbedtls_memory_buffer_alloc_max_reset( void )
{
heap.maximum_used = 0;
heap.maximum_header_count = 0;
}
void mbedtls_memory_buffer_alloc_cur_get( size_t *cur_used, size_t *cur_blocks )
{
*cur_used = heap.total_used;
*cur_blocks = heap.header_count;
}
#endif /* MBEDTLS_MEMORY_DEBUG */
#if defined(MBEDTLS_THREADING_C)
static void *buffer_alloc_calloc_mutexed( size_t n, size_t size )
{
void *buf;
if( mbedtls_mutex_lock( &heap.mutex ) != 0 )
return( NULL );
buf = buffer_alloc_calloc( n, size );
if( mbedtls_mutex_unlock( &heap.mutex ) )
return( NULL );
return( buf );
}
static void buffer_alloc_free_mutexed( void *ptr )
{
/* We have to good option here, but corrupting the heap seems
* worse than loosing memory. */
if( mbedtls_mutex_lock( &heap.mutex ) )
return;
buffer_alloc_free( ptr );
(void) mbedtls_mutex_unlock( &heap.mutex );
}
#endif /* MBEDTLS_THREADING_C */
void mbedtls_memory_buffer_alloc_init( unsigned char *buf, size_t len )
{
memset( &heap, 0, sizeof( buffer_alloc_ctx ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &heap.mutex );
mbedtls_platform_set_calloc_free( buffer_alloc_calloc_mutexed,
buffer_alloc_free_mutexed );
#else
mbedtls_platform_set_calloc_free( buffer_alloc_calloc, buffer_alloc_free );
#endif
if( len < sizeof( memory_header ) + MBEDTLS_MEMORY_ALIGN_MULTIPLE )
return;
else if( (size_t)buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE )
{
/* Adjust len first since buf is used in the computation */
len -= MBEDTLS_MEMORY_ALIGN_MULTIPLE
- (size_t)buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE;
buf += MBEDTLS_MEMORY_ALIGN_MULTIPLE
- (size_t)buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE;
}
memset( buf, 0, len );
heap.buf = buf;
heap.len = len;
heap.first = (memory_header *)buf;
heap.first->size = len - sizeof( memory_header );
heap.first->magic1 = MAGIC1;
heap.first->magic2 = MAGIC2;
heap.first_free = heap.first;
}
void mbedtls_memory_buffer_alloc_free( void )
{
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &heap.mutex );
#endif
mbedtls_platform_zeroize( &heap, sizeof(buffer_alloc_ctx) );
}
#if defined(MBEDTLS_SELF_TEST)
static int check_pointer( void *p )
{
if( p == NULL )
return( -1 );
if( (size_t) p % MBEDTLS_MEMORY_ALIGN_MULTIPLE != 0 )
return( -1 );
return( 0 );
}
static int check_all_free( void )
{
if(
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.total_used != 0 ||
#endif
heap.first != heap.first_free ||
(void *) heap.first != (void *) heap.buf )
{
return( -1 );
}
return( 0 );
}
#define TEST_ASSERT( condition ) \
if( ! (condition) ) \
{ \
if( verbose != 0 ) \
mbedtls_printf( "failed\n" ); \
\
ret = 1; \
goto cleanup; \
}
int mbedtls_memory_buffer_alloc_self_test( int verbose )
{
unsigned char buf[1024];
unsigned char *p, *q, *r, *end;
int ret = 0;
if( verbose != 0 )
mbedtls_printf( " MBA test #1 (basic alloc-free cycle): " );
mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
p = mbedtls_calloc( 1, 1 );
q = mbedtls_calloc( 1, 128 );
r = mbedtls_calloc( 1, 16 );
TEST_ASSERT( check_pointer( p ) == 0 &&
check_pointer( q ) == 0 &&
check_pointer( r ) == 0 );
mbedtls_free( r );
mbedtls_free( q );
mbedtls_free( p );
TEST_ASSERT( check_all_free( ) == 0 );
/* Memorize end to compare with the next test */
end = heap.buf + heap.len;
mbedtls_memory_buffer_alloc_free( );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " MBA test #2 (buf not aligned): " );
mbedtls_memory_buffer_alloc_init( buf + 1, sizeof( buf ) - 1 );
TEST_ASSERT( heap.buf + heap.len == end );
p = mbedtls_calloc( 1, 1 );
q = mbedtls_calloc( 1, 128 );
r = mbedtls_calloc( 1, 16 );
TEST_ASSERT( check_pointer( p ) == 0 &&
check_pointer( q ) == 0 &&
check_pointer( r ) == 0 );
mbedtls_free( r );
mbedtls_free( q );
mbedtls_free( p );
TEST_ASSERT( check_all_free( ) == 0 );
mbedtls_memory_buffer_alloc_free( );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " MBA test #3 (full): " );
mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
p = mbedtls_calloc( 1, sizeof( buf ) - sizeof( memory_header ) );
TEST_ASSERT( check_pointer( p ) == 0 );
TEST_ASSERT( mbedtls_calloc( 1, 1 ) == NULL );
mbedtls_free( p );
p = mbedtls_calloc( 1, sizeof( buf ) - 2 * sizeof( memory_header ) - 16 );
q = mbedtls_calloc( 1, 16 );
TEST_ASSERT( check_pointer( p ) == 0 && check_pointer( q ) == 0 );
TEST_ASSERT( mbedtls_calloc( 1, 1 ) == NULL );
mbedtls_free( q );
TEST_ASSERT( mbedtls_calloc( 1, 17 ) == NULL );
mbedtls_free( p );
TEST_ASSERT( check_all_free( ) == 0 );
mbedtls_memory_buffer_alloc_free( );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
cleanup:
mbedtls_memory_buffer_alloc_free( );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */

View File

@@ -1,680 +0,0 @@
/*
* TCP/IP or UDP/IP networking functions
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Enable definition of getaddrinfo() even when compiling with -std=c99. Must
* be set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#define _POSIX_C_SOURCE 200112L
#define _XOPEN_SOURCE 600 /* sockaddr_storage */
#include "common.h"
#if defined(MBEDTLS_NET_C)
#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
!defined(__HAIKU__) && !defined(__midipix__)
#error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#endif
#include "mbedtls/net_sockets.h"
#include "mbedtls/error.h"
#include <string.h>
#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
!defined(EFI32)
#define IS_EINTR( ret ) ( ( ret ) == WSAEINTR )
#if !defined(_WIN32_WINNT)
/* Enables getaddrinfo() & Co */
#define _WIN32_WINNT 0x0501
#endif
#include <ws2tcpip.h>
#include <winsock2.h>
#include <windows.h>
#if (_WIN32_WINNT < 0x0501)
#include <wspiapi.h>
#endif
#if defined(_MSC_VER)
#if defined(_WIN32_WCE)
#pragma comment( lib, "ws2.lib" )
#else
#pragma comment( lib, "ws2_32.lib" )
#endif
#endif /* _MSC_VER */
#define read(fd,buf,len) recv( fd, (char*)( buf ), (int)( len ), 0 )
#define write(fd,buf,len) send( fd, (char*)( buf ), (int)( len ), 0 )
#define close(fd) closesocket(fd)
static int wsa_init_done = 0;
#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <netdb.h>
#include <errno.h>
#define IS_EINTR( ret ) ( ( ret ) == EINTR )
#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
/* Some MS functions want int and MSVC warns if we pass size_t,
* but the standard functions use socklen_t, so cast only for MSVC */
#if defined(_MSC_VER)
#define MSVC_INT_CAST (int)
#else
#define MSVC_INT_CAST
#endif
#include <stdio.h>
#include <time.h>
#include <stdint.h>
/*
* Prepare for using the sockets interface
*/
static int net_prepare( void )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
WSADATA wsaData;
if( wsa_init_done == 0 )
{
if( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 )
return( MBEDTLS_ERR_NET_SOCKET_FAILED );
wsa_init_done = 1;
}
#else
#if !defined(EFIX64) && !defined(EFI32)
signal( SIGPIPE, SIG_IGN );
#endif
#endif
return( 0 );
}
/*
* Initialize a context
*/
void mbedtls_net_init( mbedtls_net_context *ctx )
{
ctx->fd = -1;
}
/*
* Initiate a TCP connection with host:port and the given protocol
*/
int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host,
const char *port, int proto )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
struct addrinfo hints, *addr_list, *cur;
if( ( ret = net_prepare() ) != 0 )
return( ret );
/* Do name resolution with both IPv6 and IPv4 */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( getaddrinfo( host, port, &hints, &addr_list ) != 0 )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
/* Try the sockaddrs until a connection succeeds */
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for( cur = addr_list; cur != NULL; cur = cur->ai_next )
{
ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
cur->ai_protocol );
if( ctx->fd < 0 )
{
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
if( connect( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) == 0 )
{
ret = 0;
break;
}
close( ctx->fd );
ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
}
freeaddrinfo( addr_list );
return( ret );
}
/*
* Create a listening socket on bind_ip:port
*/
int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto )
{
int n, ret;
struct addrinfo hints, *addr_list, *cur;
if( ( ret = net_prepare() ) != 0 )
return( ret );
/* Bind to IPv6 and/or IPv4, but only in the desired protocol */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( bind_ip == NULL )
hints.ai_flags = AI_PASSIVE;
if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
/* Try the sockaddrs until a binding succeeds */
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for( cur = addr_list; cur != NULL; cur = cur->ai_next )
{
ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
cur->ai_protocol );
if( ctx->fd < 0 )
{
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
n = 1;
if( setsockopt( ctx->fd, SOL_SOCKET, SO_REUSEADDR,
(const char *) &n, sizeof( n ) ) != 0 )
{
close( ctx->fd );
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
if( bind( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) != 0 )
{
close( ctx->fd );
ret = MBEDTLS_ERR_NET_BIND_FAILED;
continue;
}
/* Listen only makes sense for TCP */
if( proto == MBEDTLS_NET_PROTO_TCP )
{
if( listen( ctx->fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 )
{
close( ctx->fd );
ret = MBEDTLS_ERR_NET_LISTEN_FAILED;
continue;
}
}
/* Bind was successful */
ret = 0;
break;
}
freeaddrinfo( addr_list );
return( ret );
}
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
/*
* Check if the requested operation would be blocking on a non-blocking socket
* and thus 'failed' with a negative return value.
*/
static int net_would_block( const mbedtls_net_context *ctx )
{
((void) ctx);
return( WSAGetLastError() == WSAEWOULDBLOCK );
}
#else
/*
* Check if the requested operation would be blocking on a non-blocking socket
* and thus 'failed' with a negative return value.
*
* Note: on a blocking socket this function always returns 0!
*/
static int net_would_block( const mbedtls_net_context *ctx )
{
int err = errno;
/*
* Never return 'WOULD BLOCK' on a blocking socket
*/
if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK )
{
errno = err;
return( 0 );
}
switch( errno = err )
{
#if defined EAGAIN
case EAGAIN:
#endif
#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK:
#endif
return( 1 );
}
return( 0 );
}
#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
/*
* Accept a connection from a remote client
*/
int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
mbedtls_net_context *client_ctx,
void *client_ip, size_t buf_size, size_t *ip_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
int type;
struct sockaddr_storage client_addr;
#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \
defined(_SOCKLEN_T_DECLARED) || defined(__DEFINED_socklen_t) || \
defined(socklen_t)
socklen_t n = (socklen_t) sizeof( client_addr );
socklen_t type_len = (socklen_t) sizeof( type );
#else
int n = (int) sizeof( client_addr );
int type_len = (int) sizeof( type );
#endif
/* Is this a TCP or UDP socket? */
if( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE,
(void *) &type, &type_len ) != 0 ||
( type != SOCK_STREAM && type != SOCK_DGRAM ) )
{
return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
if( type == SOCK_STREAM )
{
/* TCP: actual accept() */
ret = client_ctx->fd = (int) accept( bind_ctx->fd,
(struct sockaddr *) &client_addr, &n );
}
else
{
/* UDP: wait for a message, but keep it in the queue */
char buf[1] = { 0 };
ret = (int) recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK,
(struct sockaddr *) &client_addr, &n );
#if defined(_WIN32)
if( ret == SOCKET_ERROR &&
WSAGetLastError() == WSAEMSGSIZE )
{
/* We know buf is too small, thanks, just peeking here */
ret = 0;
}
#endif
}
if( ret < 0 )
{
if( net_would_block( bind_ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_READ );
return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
/* UDP: hijack the listening socket to communicate with the client,
* then bind a new socket to accept new connections */
if( type != SOCK_STREAM )
{
struct sockaddr_storage local_addr;
int one = 1;
if( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 )
return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
client_ctx->fd = bind_ctx->fd;
bind_ctx->fd = -1; /* In case we exit early */
n = sizeof( struct sockaddr_storage );
if( getsockname( client_ctx->fd,
(struct sockaddr *) &local_addr, &n ) != 0 ||
( bind_ctx->fd = (int) socket( local_addr.ss_family,
SOCK_DGRAM, IPPROTO_UDP ) ) < 0 ||
setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR,
(const char *) &one, sizeof( one ) ) != 0 )
{
return( MBEDTLS_ERR_NET_SOCKET_FAILED );
}
if( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 )
{
return( MBEDTLS_ERR_NET_BIND_FAILED );
}
}
if( client_ip != NULL )
{
if( client_addr.ss_family == AF_INET )
{
struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr;
*ip_len = sizeof( addr4->sin_addr.s_addr );
if( buf_size < *ip_len )
return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len );
}
else
{
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &client_addr;
*ip_len = sizeof( addr6->sin6_addr.s6_addr );
if( buf_size < *ip_len )
return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len);
}
}
return( 0 );
}
/*
* Set the socket blocking or non-blocking
*/
int mbedtls_net_set_block( mbedtls_net_context *ctx )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
u_long n = 0;
return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
#else
return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) );
#endif
}
int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
u_long n = 1;
return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
#else
return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) );
#endif
}
/*
* Check if data is available on the socket
*/
int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
struct timeval tv;
fd_set read_fds;
fd_set write_fds;
int fd = ctx->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
/* Ensure that memory sanitizers consider read_fds and write_fds as
* initialized even on platforms such as Glibc/x86_64 where FD_ZERO
* is implemented in assembly. */
memset( &read_fds, 0, sizeof( read_fds ) );
memset( &write_fds, 0, sizeof( write_fds ) );
#endif
#endif
FD_ZERO( &read_fds );
if( rw & MBEDTLS_NET_POLL_READ )
{
rw &= ~MBEDTLS_NET_POLL_READ;
FD_SET( fd, &read_fds );
}
FD_ZERO( &write_fds );
if( rw & MBEDTLS_NET_POLL_WRITE )
{
rw &= ~MBEDTLS_NET_POLL_WRITE;
FD_SET( fd, &write_fds );
}
if( rw != 0 )
return( MBEDTLS_ERR_NET_BAD_INPUT_DATA );
tv.tv_sec = timeout / 1000;
tv.tv_usec = ( timeout % 1000 ) * 1000;
do
{
ret = select( fd + 1, &read_fds, &write_fds, NULL,
timeout == (uint32_t) -1 ? NULL : &tv );
}
while( IS_EINTR( ret ) );
if( ret < 0 )
return( MBEDTLS_ERR_NET_POLL_FAILED );
ret = 0;
if( FD_ISSET( fd, &read_fds ) )
ret |= MBEDTLS_NET_POLL_READ;
if( FD_ISSET( fd, &write_fds ) )
ret |= MBEDTLS_NET_POLL_WRITE;
return( ret );
}
/*
* Portable usleep helper
*/
void mbedtls_net_usleep( unsigned long usec )
{
#if defined(_WIN32)
Sleep( ( usec + 999 ) / 1000 );
#else
struct timeval tv;
tv.tv_sec = usec / 1000000;
#if defined(__unix__) || defined(__unix) || \
( defined(__APPLE__) && defined(__MACH__) )
tv.tv_usec = (suseconds_t) usec % 1000000;
#else
tv.tv_usec = usec % 1000000;
#endif
select( 0, NULL, NULL, NULL, &tv );
#endif
}
/*
* Read at most 'len' characters
*/
int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) read( fd, buf, len );
if( ret < 0 )
{
if( net_would_block( ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_READ );
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
if( WSAGetLastError() == WSAECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
#else
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
#endif
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
return( ret );
}
/*
* Read at most 'len' characters, blocking for at most 'timeout' ms
*/
int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf,
size_t len, uint32_t timeout )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
struct timeval tv;
fd_set read_fds;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
FD_ZERO( &read_fds );
FD_SET( fd, &read_fds );
tv.tv_sec = timeout / 1000;
tv.tv_usec = ( timeout % 1000 ) * 1000;
ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv );
/* Zero fds ready means we timed out */
if( ret == 0 )
return( MBEDTLS_ERR_SSL_TIMEOUT );
if( ret < 0 )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
if( WSAGetLastError() == WSAEINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
#else
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
#endif
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
/* This call will not block */
return( mbedtls_net_recv( ctx, buf, len ) );
}
/*
* Write at most 'len' characters
*/
int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) write( fd, buf, len );
if( ret < 0 )
{
if( net_would_block( ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
if( WSAGetLastError() == WSAECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
#else
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
#endif
return( MBEDTLS_ERR_NET_SEND_FAILED );
}
return( ret );
}
/*
* Close the connection
*/
void mbedtls_net_close( mbedtls_net_context *ctx )
{
if( ctx->fd == -1 )
return;
close( ctx->fd );
ctx->fd = -1;
}
/*
* Gracefully close the connection
*/
void mbedtls_net_free( mbedtls_net_context *ctx )
{
if( ctx->fd == -1 )
return;
shutdown( ctx->fd, 2 );
close( ctx->fd );
ctx->fd = -1;
}
#endif /* MBEDTLS_NET_C */

View File

@@ -1,750 +0,0 @@
/*
* Implementation of NIST SP 800-38F key wrapping, supporting KW and KWP modes
* only
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Definition of Key Wrapping:
* https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-38F.pdf
* RFC 3394 "Advanced Encryption Standard (AES) Key Wrap Algorithm"
* RFC 5649 "Advanced Encryption Standard (AES) Key Wrap with Padding Algorithm"
*
* Note: RFC 3394 defines different methodology for intermediate operations for
* the wrapping and unwrapping operation than the definition in NIST SP 800-38F.
*/
#include "common.h"
#if defined(MBEDTLS_NIST_KW_C)
#include "mbedtls/nist_kw.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <stdint.h>
#include <string.h>
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#if !defined(MBEDTLS_NIST_KW_ALT)
#define KW_SEMIBLOCK_LENGTH 8
#define MIN_SEMIBLOCKS_COUNT 3
/* constant-time buffer comparison */
static inline unsigned char mbedtls_nist_kw_safer_memcmp( const void *a, const void *b, size_t n )
{
size_t i;
volatile const unsigned char *A = (volatile const unsigned char *) a;
volatile const unsigned char *B = (volatile const unsigned char *) b;
volatile unsigned char diff = 0;
for( i = 0; i < n; i++ )
{
/* Read volatile data in order before computing diff.
* This avoids IAR compiler warning:
* 'the order of volatile accesses is undefined ..' */
unsigned char x = A[i], y = B[i];
diff |= x ^ y;
}
return( diff );
}
/*! The 64-bit default integrity check value (ICV) for KW mode. */
static const unsigned char NIST_KW_ICV1[] = {0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6};
/*! The 32-bit default integrity check value (ICV) for KWP mode. */
static const unsigned char NIST_KW_ICV2[] = {0xA6, 0x59, 0x59, 0xA6};
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
do { \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
} while( 0 )
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
do { \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
} while( 0 )
#endif
/*
* Initialize context
*/
void mbedtls_nist_kw_init( mbedtls_nist_kw_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_nist_kw_context ) );
}
int mbedtls_nist_kw_setkey( mbedtls_nist_kw_context *ctx,
mbedtls_cipher_id_t cipher,
const unsigned char *key,
unsigned int keybits,
const int is_wrap )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const mbedtls_cipher_info_t *cipher_info;
cipher_info = mbedtls_cipher_info_from_values( cipher,
keybits,
MBEDTLS_MODE_ECB );
if( cipher_info == NULL )
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
if( cipher_info->block_size != 16 )
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
/*
* SP 800-38F currently defines AES cipher as the only block cipher allowed:
* "For KW and KWP, the underlying block cipher shall be approved, and the
* block size shall be 128 bits. Currently, the AES block cipher, with key
* lengths of 128, 192, or 256 bits, is the only block cipher that fits
* this profile."
* Currently we don't support other 128 bit block ciphers for key wrapping,
* such as Camellia and Aria.
*/
if( cipher != MBEDTLS_CIPHER_ID_AES )
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
mbedtls_cipher_free( &ctx->cipher_ctx );
if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
return( ret );
if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
is_wrap ? MBEDTLS_ENCRYPT :
MBEDTLS_DECRYPT )
) != 0 )
{
return( ret );
}
return( 0 );
}
/*
* Free context
*/
void mbedtls_nist_kw_free( mbedtls_nist_kw_context *ctx )
{
mbedtls_cipher_free( &ctx->cipher_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_nist_kw_context ) );
}
/*
* Helper function for Xoring the uint64_t "t" with the encrypted A.
* Defined in NIST SP 800-38F section 6.1
*/
static void calc_a_xor_t( unsigned char A[KW_SEMIBLOCK_LENGTH], uint64_t t )
{
size_t i = 0;
for( i = 0; i < sizeof( t ); i++ )
{
A[i] ^= ( t >> ( ( sizeof( t ) - 1 - i ) * 8 ) ) & 0xff;
}
}
/*
* KW-AE as defined in SP 800-38F section 6.2
* KWP-AE as defined in SP 800-38F section 6.3
*/
int mbedtls_nist_kw_wrap( mbedtls_nist_kw_context *ctx,
mbedtls_nist_kw_mode_t mode,
const unsigned char *input, size_t in_len,
unsigned char *output, size_t *out_len, size_t out_size )
{
int ret = 0;
size_t semiblocks = 0;
size_t s;
size_t olen, padlen = 0;
uint64_t t = 0;
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char inbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char *R2 = output + KW_SEMIBLOCK_LENGTH;
unsigned char *A = output;
*out_len = 0;
/*
* Generate the String to work on
*/
if( mode == MBEDTLS_KW_MODE_KW )
{
if( out_size < in_len + KW_SEMIBLOCK_LENGTH )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
/*
* According to SP 800-38F Table 1, the plaintext length for KW
* must be between 2 to 2^54-1 semiblocks inclusive.
*/
if( in_len < 16 ||
#if SIZE_MAX > 0x1FFFFFFFFFFFFF8
in_len > 0x1FFFFFFFFFFFFF8 ||
#endif
in_len % KW_SEMIBLOCK_LENGTH != 0 )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
memcpy( output, NIST_KW_ICV1, KW_SEMIBLOCK_LENGTH );
memmove( output + KW_SEMIBLOCK_LENGTH, input, in_len );
}
else
{
if( in_len % 8 != 0 )
{
padlen = ( 8 - ( in_len % 8 ) );
}
if( out_size < in_len + KW_SEMIBLOCK_LENGTH + padlen )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
/*
* According to SP 800-38F Table 1, the plaintext length for KWP
* must be between 1 and 2^32-1 octets inclusive.
*/
if( in_len < 1
#if SIZE_MAX > 0xFFFFFFFF
|| in_len > 0xFFFFFFFF
#endif
)
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
memcpy( output, NIST_KW_ICV2, KW_SEMIBLOCK_LENGTH / 2 );
PUT_UINT32_BE( ( in_len & 0xffffffff ), output,
KW_SEMIBLOCK_LENGTH / 2 );
memcpy( output + KW_SEMIBLOCK_LENGTH, input, in_len );
memset( output + KW_SEMIBLOCK_LENGTH + in_len, 0, padlen );
}
semiblocks = ( ( in_len + padlen ) / KW_SEMIBLOCK_LENGTH ) + 1;
s = 6 * ( semiblocks - 1 );
if( mode == MBEDTLS_KW_MODE_KWP
&& in_len <= KW_SEMIBLOCK_LENGTH )
{
memcpy( inbuff, output, 16 );
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
inbuff, 16, output, &olen );
if( ret != 0 )
goto cleanup;
}
else
{
/*
* Do the wrapping function W, as defined in RFC 3394 section 2.2.1
*/
if( semiblocks < MIN_SEMIBLOCKS_COUNT )
{
ret = MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
goto cleanup;
}
/* Calculate intermediate values */
for( t = 1; t <= s; t++ )
{
memcpy( inbuff, A, KW_SEMIBLOCK_LENGTH );
memcpy( inbuff + KW_SEMIBLOCK_LENGTH, R2, KW_SEMIBLOCK_LENGTH );
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
inbuff, 16, outbuff, &olen );
if( ret != 0 )
goto cleanup;
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
calc_a_xor_t( A, t );
memcpy( R2, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
R2 += KW_SEMIBLOCK_LENGTH;
if( R2 >= output + ( semiblocks * KW_SEMIBLOCK_LENGTH ) )
R2 = output + KW_SEMIBLOCK_LENGTH;
}
}
*out_len = semiblocks * KW_SEMIBLOCK_LENGTH;
cleanup:
if( ret != 0)
{
memset( output, 0, semiblocks * KW_SEMIBLOCK_LENGTH );
}
mbedtls_platform_zeroize( inbuff, KW_SEMIBLOCK_LENGTH * 2 );
mbedtls_platform_zeroize( outbuff, KW_SEMIBLOCK_LENGTH * 2 );
return( ret );
}
/*
* W-1 function as defined in RFC 3394 section 2.2.2
* This function assumes the following:
* 1. Output buffer is at least of size ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH.
* 2. The input buffer is of size semiblocks * KW_SEMIBLOCK_LENGTH.
* 3. Minimal number of semiblocks is 3.
* 4. A is a buffer to hold the first semiblock of the input buffer.
*/
static int unwrap( mbedtls_nist_kw_context *ctx,
const unsigned char *input, size_t semiblocks,
unsigned char A[KW_SEMIBLOCK_LENGTH],
unsigned char *output, size_t* out_len )
{
int ret = 0;
const size_t s = 6 * ( semiblocks - 1 );
size_t olen;
uint64_t t = 0;
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char inbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char *R = output + ( semiblocks - 2 ) * KW_SEMIBLOCK_LENGTH;
*out_len = 0;
if( semiblocks < MIN_SEMIBLOCKS_COUNT )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
memcpy( A, input, KW_SEMIBLOCK_LENGTH );
memmove( output, input + KW_SEMIBLOCK_LENGTH, ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH );
/* Calculate intermediate values */
for( t = s; t >= 1; t-- )
{
calc_a_xor_t( A, t );
memcpy( inbuff, A, KW_SEMIBLOCK_LENGTH );
memcpy( inbuff + KW_SEMIBLOCK_LENGTH, R, KW_SEMIBLOCK_LENGTH );
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
inbuff, 16, outbuff, &olen );
if( ret != 0 )
goto cleanup;
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
/* Set R as LSB64 of outbuff */
memcpy( R, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
if( R == output )
R = output + ( semiblocks - 2 ) * KW_SEMIBLOCK_LENGTH;
else
R -= KW_SEMIBLOCK_LENGTH;
}
*out_len = ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH;
cleanup:
if( ret != 0)
memset( output, 0, ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH );
mbedtls_platform_zeroize( inbuff, sizeof( inbuff ) );
mbedtls_platform_zeroize( outbuff, sizeof( outbuff ) );
return( ret );
}
/*
* KW-AD as defined in SP 800-38F section 6.2
* KWP-AD as defined in SP 800-38F section 6.3
*/
int mbedtls_nist_kw_unwrap( mbedtls_nist_kw_context *ctx,
mbedtls_nist_kw_mode_t mode,
const unsigned char *input, size_t in_len,
unsigned char *output, size_t *out_len, size_t out_size )
{
int ret = 0;
size_t i, olen;
unsigned char A[KW_SEMIBLOCK_LENGTH];
unsigned char diff, bad_padding = 0;
*out_len = 0;
if( out_size < in_len - KW_SEMIBLOCK_LENGTH )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
if( mode == MBEDTLS_KW_MODE_KW )
{
/*
* According to SP 800-38F Table 1, the ciphertext length for KW
* must be between 3 to 2^54 semiblocks inclusive.
*/
if( in_len < 24 ||
#if SIZE_MAX > 0x200000000000000
in_len > 0x200000000000000 ||
#endif
in_len % KW_SEMIBLOCK_LENGTH != 0 )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
ret = unwrap( ctx, input, in_len / KW_SEMIBLOCK_LENGTH,
A, output, out_len );
if( ret != 0 )
goto cleanup;
/* Check ICV in "constant-time" */
diff = mbedtls_nist_kw_safer_memcmp( NIST_KW_ICV1, A, KW_SEMIBLOCK_LENGTH );
if( diff != 0 )
{
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
goto cleanup;
}
}
else if( mode == MBEDTLS_KW_MODE_KWP )
{
size_t padlen = 0;
uint32_t Plen;
/*
* According to SP 800-38F Table 1, the ciphertext length for KWP
* must be between 2 to 2^29 semiblocks inclusive.
*/
if( in_len < KW_SEMIBLOCK_LENGTH * 2 ||
#if SIZE_MAX > 0x100000000
in_len > 0x100000000 ||
#endif
in_len % KW_SEMIBLOCK_LENGTH != 0 )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
if( in_len == KW_SEMIBLOCK_LENGTH * 2 )
{
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
input, 16, outbuff, &olen );
if( ret != 0 )
goto cleanup;
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
memcpy( output, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
mbedtls_platform_zeroize( outbuff, sizeof( outbuff ) );
*out_len = KW_SEMIBLOCK_LENGTH;
}
else
{
/* in_len >= KW_SEMIBLOCK_LENGTH * 3 */
ret = unwrap( ctx, input, in_len / KW_SEMIBLOCK_LENGTH,
A, output, out_len );
if( ret != 0 )
goto cleanup;
}
/* Check ICV in "constant-time" */
diff = mbedtls_nist_kw_safer_memcmp( NIST_KW_ICV2, A, KW_SEMIBLOCK_LENGTH / 2 );
if( diff != 0 )
{
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
}
GET_UINT32_BE( Plen, A, KW_SEMIBLOCK_LENGTH / 2 );
/*
* Plen is the length of the plaintext, when the input is valid.
* If Plen is larger than the plaintext and padding, padlen will be
* larger than 8, because of the type wrap around.
*/
padlen = in_len - KW_SEMIBLOCK_LENGTH - Plen;
if ( padlen > 7 )
{
padlen &= 7;
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
}
/* Check padding in "constant-time" */
for( diff = 0, i = 0; i < KW_SEMIBLOCK_LENGTH; i++ )
{
if( i >= KW_SEMIBLOCK_LENGTH - padlen )
diff |= output[*out_len - KW_SEMIBLOCK_LENGTH + i];
else
bad_padding |= output[*out_len - KW_SEMIBLOCK_LENGTH + i];
}
if( diff != 0 )
{
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
}
if( ret != 0 )
{
goto cleanup;
}
memset( output + Plen, 0, padlen );
*out_len = Plen;
}
else
{
ret = MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE;
goto cleanup;
}
cleanup:
if( ret != 0 )
{
memset( output, 0, *out_len );
*out_len = 0;
}
mbedtls_platform_zeroize( &bad_padding, sizeof( bad_padding) );
mbedtls_platform_zeroize( &diff, sizeof( diff ) );
mbedtls_platform_zeroize( A, sizeof( A ) );
return( ret );
}
#endif /* !MBEDTLS_NIST_KW_ALT */
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
#define KW_TESTS 3
/*
* Test vectors taken from NIST
* https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program/CAVP-TESTING-BLOCK-CIPHER-MODES#KW
*/
static const unsigned int key_len[KW_TESTS] = { 16, 24, 32 };
static const unsigned char kw_key[KW_TESTS][32] = {
{ 0x75, 0x75, 0xda, 0x3a, 0x93, 0x60, 0x7c, 0xc2,
0xbf, 0xd8, 0xce, 0xc7, 0xaa, 0xdf, 0xd9, 0xa6 },
{ 0x2d, 0x85, 0x26, 0x08, 0x1d, 0x02, 0xfb, 0x5b,
0x85, 0xf6, 0x9a, 0xc2, 0x86, 0xec, 0xd5, 0x7d,
0x40, 0xdf, 0x5d, 0xf3, 0x49, 0x47, 0x44, 0xd3 },
{ 0x11, 0x2a, 0xd4, 0x1b, 0x48, 0x56, 0xc7, 0x25,
0x4a, 0x98, 0x48, 0xd3, 0x0f, 0xdd, 0x78, 0x33,
0x5b, 0x03, 0x9a, 0x48, 0xa8, 0x96, 0x2c, 0x4d,
0x1c, 0xb7, 0x8e, 0xab, 0xd5, 0xda, 0xd7, 0x88 }
};
static const unsigned char kw_msg[KW_TESTS][40] = {
{ 0x42, 0x13, 0x6d, 0x3c, 0x38, 0x4a, 0x3e, 0xea,
0xc9, 0x5a, 0x06, 0x6f, 0xd2, 0x8f, 0xed, 0x3f },
{ 0x95, 0xc1, 0x1b, 0xf5, 0x35, 0x3a, 0xfe, 0xdb,
0x98, 0xfd, 0xd6, 0xc8, 0xca, 0x6f, 0xdb, 0x6d,
0xa5, 0x4b, 0x74, 0xb4, 0x99, 0x0f, 0xdc, 0x45,
0xc0, 0x9d, 0x15, 0x8f, 0x51, 0xce, 0x62, 0x9d,
0xe2, 0xaf, 0x26, 0xe3, 0x25, 0x0e, 0x6b, 0x4c },
{ 0x1b, 0x20, 0xbf, 0x19, 0x90, 0xb0, 0x65, 0xd7,
0x98, 0xe1, 0xb3, 0x22, 0x64, 0xad, 0x50, 0xa8,
0x74, 0x74, 0x92, 0xba, 0x09, 0xa0, 0x4d, 0xd1 }
};
static const size_t kw_msg_len[KW_TESTS] = { 16, 40, 24 };
static const size_t kw_out_len[KW_TESTS] = { 24, 48, 32 };
static const unsigned char kw_res[KW_TESTS][48] = {
{ 0x03, 0x1f, 0x6b, 0xd7, 0xe6, 0x1e, 0x64, 0x3d,
0xf6, 0x85, 0x94, 0x81, 0x6f, 0x64, 0xca, 0xa3,
0xf5, 0x6f, 0xab, 0xea, 0x25, 0x48, 0xf5, 0xfb },
{ 0x44, 0x3c, 0x6f, 0x15, 0x09, 0x83, 0x71, 0x91,
0x3e, 0x5c, 0x81, 0x4c, 0xa1, 0xa0, 0x42, 0xec,
0x68, 0x2f, 0x7b, 0x13, 0x6d, 0x24, 0x3a, 0x4d,
0x6c, 0x42, 0x6f, 0xc6, 0x97, 0x15, 0x63, 0xe8,
0xa1, 0x4a, 0x55, 0x8e, 0x09, 0x64, 0x16, 0x19,
0xbf, 0x03, 0xfc, 0xaf, 0x90, 0xb1, 0xfc, 0x2d },
{ 0xba, 0x8a, 0x25, 0x9a, 0x47, 0x1b, 0x78, 0x7d,
0xd5, 0xd5, 0x40, 0xec, 0x25, 0xd4, 0x3d, 0x87,
0x20, 0x0f, 0xda, 0xdc, 0x6d, 0x1f, 0x05, 0xd9,
0x16, 0x58, 0x4f, 0xa9, 0xf6, 0xcb, 0xf5, 0x12 }
};
static const unsigned char kwp_key[KW_TESTS][32] = {
{ 0x78, 0x65, 0xe2, 0x0f, 0x3c, 0x21, 0x65, 0x9a,
0xb4, 0x69, 0x0b, 0x62, 0x9c, 0xdf, 0x3c, 0xc4 },
{ 0xf5, 0xf8, 0x96, 0xa3, 0xbd, 0x2f, 0x4a, 0x98,
0x23, 0xef, 0x16, 0x2b, 0x00, 0xb8, 0x05, 0xd7,
0xde, 0x1e, 0xa4, 0x66, 0x26, 0x96, 0xa2, 0x58 },
{ 0x95, 0xda, 0x27, 0x00, 0xca, 0x6f, 0xd9, 0xa5,
0x25, 0x54, 0xee, 0x2a, 0x8d, 0xf1, 0x38, 0x6f,
0x5b, 0x94, 0xa1, 0xa6, 0x0e, 0xd8, 0xa4, 0xae,
0xf6, 0x0a, 0x8d, 0x61, 0xab, 0x5f, 0x22, 0x5a }
};
static const unsigned char kwp_msg[KW_TESTS][31] = {
{ 0xbd, 0x68, 0x43, 0xd4, 0x20, 0x37, 0x8d, 0xc8,
0x96 },
{ 0x6c, 0xcd, 0xd5, 0x85, 0x18, 0x40, 0x97, 0xeb,
0xd5, 0xc3, 0xaf, 0x3e, 0x47, 0xd0, 0x2c, 0x19,
0x14, 0x7b, 0x4d, 0x99, 0x5f, 0x96, 0x43, 0x66,
0x91, 0x56, 0x75, 0x8c, 0x13, 0x16, 0x8f },
{ 0xd1 }
};
static const size_t kwp_msg_len[KW_TESTS] = { 9, 31, 1 };
static const unsigned char kwp_res[KW_TESTS][48] = {
{ 0x41, 0xec, 0xa9, 0x56, 0xd4, 0xaa, 0x04, 0x7e,
0xb5, 0xcf, 0x4e, 0xfe, 0x65, 0x96, 0x61, 0xe7,
0x4d, 0xb6, 0xf8, 0xc5, 0x64, 0xe2, 0x35, 0x00 },
{ 0x4e, 0x9b, 0xc2, 0xbc, 0xbc, 0x6c, 0x1e, 0x13,
0xd3, 0x35, 0xbc, 0xc0, 0xf7, 0x73, 0x6a, 0x88,
0xfa, 0x87, 0x53, 0x66, 0x15, 0xbb, 0x8e, 0x63,
0x8b, 0xcc, 0x81, 0x66, 0x84, 0x68, 0x17, 0x90,
0x67, 0xcf, 0xa9, 0x8a, 0x9d, 0x0e, 0x33, 0x26 },
{ 0x06, 0xba, 0x7a, 0xe6, 0xf3, 0x24, 0x8c, 0xfd,
0xcf, 0x26, 0x75, 0x07, 0xfa, 0x00, 0x1b, 0xc4 }
};
static const size_t kwp_out_len[KW_TESTS] = { 24, 40, 16 };
int mbedtls_nist_kw_self_test( int verbose )
{
mbedtls_nist_kw_context ctx;
unsigned char out[48];
size_t olen;
int i;
int ret = 0;
mbedtls_nist_kw_init( &ctx );
for( i = 0; i < KW_TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " KW-AES-%u ", (unsigned int) key_len[i] * 8 );
ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
kw_key[i], key_len[i] * 8, 1 );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( " KW: setup failed " );
goto end;
}
ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KW, kw_msg[i],
kw_msg_len[i], out, &olen, sizeof( out ) );
if( ret != 0 || kw_out_len[i] != olen ||
memcmp( out, kw_res[i], kw_out_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed. ");
ret = 1;
goto end;
}
if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
kw_key[i], key_len[i] * 8, 0 ) )
!= 0 )
{
if( verbose != 0 )
mbedtls_printf( " KW: setup failed ");
goto end;
}
ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KW,
out, olen, out, &olen, sizeof( out ) );
if( ret != 0 || olen != kw_msg_len[i] ||
memcmp( out, kw_msg[i], kw_msg_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto end;
}
if( verbose != 0 )
mbedtls_printf( " passed\n" );
}
for( i = 0; i < KW_TESTS; i++ )
{
olen = sizeof( out );
if( verbose != 0 )
mbedtls_printf( " KWP-AES-%u ", (unsigned int) key_len[i] * 8 );
ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, kwp_key[i],
key_len[i] * 8, 1 );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( " KWP: setup failed " );
goto end;
}
ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KWP, kwp_msg[i],
kwp_msg_len[i], out, &olen, sizeof( out ) );
if( ret != 0 || kwp_out_len[i] != olen ||
memcmp( out, kwp_res[i], kwp_out_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed. ");
ret = 1;
goto end;
}
if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
kwp_key[i], key_len[i] * 8, 0 ) )
!= 0 )
{
if( verbose != 0 )
mbedtls_printf( " KWP: setup failed ");
goto end;
}
ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KWP, out,
olen, out, &olen, sizeof( out ) );
if( ret != 0 || olen != kwp_msg_len[i] ||
memcmp( out, kwp_msg[i], kwp_msg_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed. ");
ret = 1;
goto end;
}
if( verbose != 0 )
mbedtls_printf( " passed\n" );
}
end:
mbedtls_nist_kw_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#endif /* MBEDTLS_NIST_KW_C */

View File

@@ -1,767 +0,0 @@
/**
* \file oid.c
*
* \brief Object Identifier (OID) database
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_OID_C)
#include "mbedtls/oid.h"
#include "mbedtls/rsa.h"
#include "mbedtls/error.h"
#include <stdio.h>
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_snprintf snprintf
#endif
/*
* Macro to automatically add the size of #define'd OIDs
*/
#define ADD_LEN(s) s, MBEDTLS_OID_SIZE(s)
/*
* Macro to generate an internal function for oid_XXX_from_asn1() (used by
* the other functions)
*/
#define FN_OID_TYPED_FROM_ASN1( TYPE_T, NAME, LIST ) \
static const TYPE_T * oid_ ## NAME ## _from_asn1( \
const mbedtls_asn1_buf *oid ) \
{ \
const TYPE_T *p = (LIST); \
const mbedtls_oid_descriptor_t *cur = \
(const mbedtls_oid_descriptor_t *) p; \
if( p == NULL || oid == NULL ) return( NULL ); \
while( cur->asn1 != NULL ) { \
if( cur->asn1_len == oid->len && \
memcmp( cur->asn1, oid->p, oid->len ) == 0 ) { \
return( p ); \
} \
p++; \
cur = (const mbedtls_oid_descriptor_t *) p; \
} \
return( NULL ); \
}
/*
* Macro to generate a function for retrieving a single attribute from the
* descriptor of an mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_DESCRIPTOR_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \
int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->descriptor.ATTR1; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving a single attribute from an
* mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \
int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->ATTR1; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving two attributes from an
* mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_ATTR2(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1, \
ATTR2_TYPE, ATTR2) \
int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1, \
ATTR2_TYPE * ATTR2 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \
*(ATTR1) = data->ATTR1; \
*(ATTR2) = data->ATTR2; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving the OID based on a single
* attribute from a mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_OID_BY_ATTR1(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1) \
int FN_NAME( ATTR1_TYPE ATTR1, const char **oid, size_t *olen ) \
{ \
const TYPE_T *cur = (LIST); \
while( cur->descriptor.asn1 != NULL ) { \
if( cur->ATTR1 == (ATTR1) ) { \
*oid = cur->descriptor.asn1; \
*olen = cur->descriptor.asn1_len; \
return( 0 ); \
} \
cur++; \
} \
return( MBEDTLS_ERR_OID_NOT_FOUND ); \
}
/*
* Macro to generate a function for retrieving the OID based on two
* attributes from a mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_OID_BY_ATTR2(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1, \
ATTR2_TYPE, ATTR2) \
int FN_NAME( ATTR1_TYPE ATTR1, ATTR2_TYPE ATTR2, const char **oid , \
size_t *olen ) \
{ \
const TYPE_T *cur = (LIST); \
while( cur->descriptor.asn1 != NULL ) { \
if( cur->ATTR1 == (ATTR1) && cur->ATTR2 == (ATTR2) ) { \
*oid = cur->descriptor.asn1; \
*olen = cur->descriptor.asn1_len; \
return( 0 ); \
} \
cur++; \
} \
return( MBEDTLS_ERR_OID_NOT_FOUND ); \
}
/*
* For X520 attribute types
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
const char *short_name;
} oid_x520_attr_t;
static const oid_x520_attr_t oid_x520_attr_type[] =
{
{
{ ADD_LEN( MBEDTLS_OID_AT_CN ), "id-at-commonName", "Common Name" },
"CN",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_COUNTRY ), "id-at-countryName", "Country" },
"C",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_LOCALITY ), "id-at-locality", "Locality" },
"L",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_STATE ), "id-at-state", "State" },
"ST",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_ORGANIZATION ),"id-at-organizationName", "Organization" },
"O",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_ORG_UNIT ), "id-at-organizationalUnitName", "Org Unit" },
"OU",
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS9_EMAIL ), "emailAddress", "E-mail address" },
"emailAddress",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_SERIAL_NUMBER ),"id-at-serialNumber", "Serial number" },
"serialNumber",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_POSTAL_ADDRESS ),"id-at-postalAddress", "Postal address" },
"postalAddress",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_POSTAL_CODE ), "id-at-postalCode", "Postal code" },
"postalCode",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_SUR_NAME ), "id-at-surName", "Surname" },
"SN",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_GIVEN_NAME ), "id-at-givenName", "Given name" },
"GN",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_INITIALS ), "id-at-initials", "Initials" },
"initials",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_GENERATION_QUALIFIER ), "id-at-generationQualifier", "Generation qualifier" },
"generationQualifier",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_TITLE ), "id-at-title", "Title" },
"title",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_DN_QUALIFIER ),"id-at-dnQualifier", "Distinguished Name qualifier" },
"dnQualifier",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_PSEUDONYM ), "id-at-pseudonym", "Pseudonym" },
"pseudonym",
},
{
{ ADD_LEN( MBEDTLS_OID_DOMAIN_COMPONENT ), "id-domainComponent", "Domain component" },
"DC",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_UNIQUE_IDENTIFIER ), "id-at-uniqueIdentifier", "Unique Identifier" },
"uniqueIdentifier",
},
{
{ NULL, 0, NULL, NULL },
NULL,
}
};
FN_OID_TYPED_FROM_ASN1(oid_x520_attr_t, x520_attr, oid_x520_attr_type)
FN_OID_GET_ATTR1(mbedtls_oid_get_attr_short_name, oid_x520_attr_t, x520_attr, const char *, short_name)
/*
* For X509 extensions
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
int ext_type;
} oid_x509_ext_t;
static const oid_x509_ext_t oid_x509_ext[] =
{
{
{ ADD_LEN( MBEDTLS_OID_BASIC_CONSTRAINTS ), "id-ce-basicConstraints", "Basic Constraints" },
MBEDTLS_OID_X509_EXT_BASIC_CONSTRAINTS,
},
{
{ ADD_LEN( MBEDTLS_OID_KEY_USAGE ), "id-ce-keyUsage", "Key Usage" },
MBEDTLS_OID_X509_EXT_KEY_USAGE,
},
{
{ ADD_LEN( MBEDTLS_OID_EXTENDED_KEY_USAGE ), "id-ce-extKeyUsage", "Extended Key Usage" },
MBEDTLS_OID_X509_EXT_EXTENDED_KEY_USAGE,
},
{
{ ADD_LEN( MBEDTLS_OID_SUBJECT_ALT_NAME ), "id-ce-subjectAltName", "Subject Alt Name" },
MBEDTLS_OID_X509_EXT_SUBJECT_ALT_NAME,
},
{
{ ADD_LEN( MBEDTLS_OID_NS_CERT_TYPE ), "id-netscape-certtype", "Netscape Certificate Type" },
MBEDTLS_OID_X509_EXT_NS_CERT_TYPE,
},
{
{ ADD_LEN( MBEDTLS_OID_CERTIFICATE_POLICIES ), "id-ce-certificatePolicies", "Certificate Policies" },
MBEDTLS_OID_X509_EXT_CERTIFICATE_POLICIES,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_x509_ext_t, x509_ext, oid_x509_ext)
FN_OID_GET_ATTR1(mbedtls_oid_get_x509_ext_type, oid_x509_ext_t, x509_ext, int, ext_type)
static const mbedtls_oid_descriptor_t oid_ext_key_usage[] =
{
{ ADD_LEN( MBEDTLS_OID_SERVER_AUTH ), "id-kp-serverAuth", "TLS Web Server Authentication" },
{ ADD_LEN( MBEDTLS_OID_CLIENT_AUTH ), "id-kp-clientAuth", "TLS Web Client Authentication" },
{ ADD_LEN( MBEDTLS_OID_CODE_SIGNING ), "id-kp-codeSigning", "Code Signing" },
{ ADD_LEN( MBEDTLS_OID_EMAIL_PROTECTION ), "id-kp-emailProtection", "E-mail Protection" },
{ ADD_LEN( MBEDTLS_OID_TIME_STAMPING ), "id-kp-timeStamping", "Time Stamping" },
{ ADD_LEN( MBEDTLS_OID_OCSP_SIGNING ), "id-kp-OCSPSigning", "OCSP Signing" },
{ ADD_LEN( MBEDTLS_OID_WISUN_FAN ), "id-kp-wisun-fan-device", "Wi-SUN Alliance Field Area Network (FAN)" },
{ NULL, 0, NULL, NULL },
};
FN_OID_TYPED_FROM_ASN1(mbedtls_oid_descriptor_t, ext_key_usage, oid_ext_key_usage)
FN_OID_GET_ATTR1(mbedtls_oid_get_extended_key_usage, mbedtls_oid_descriptor_t, ext_key_usage, const char *, description)
static const mbedtls_oid_descriptor_t oid_certificate_policies[] =
{
{ ADD_LEN( MBEDTLS_OID_ANY_POLICY ), "anyPolicy", "Any Policy" },
{ NULL, 0, NULL, NULL },
};
FN_OID_TYPED_FROM_ASN1(mbedtls_oid_descriptor_t, certificate_policies, oid_certificate_policies)
FN_OID_GET_ATTR1(mbedtls_oid_get_certificate_policies, mbedtls_oid_descriptor_t, certificate_policies, const char *, description)
#if defined(MBEDTLS_MD_C)
/*
* For SignatureAlgorithmIdentifier
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_alg;
mbedtls_pk_type_t pk_alg;
} oid_sig_alg_t;
static const oid_sig_alg_t oid_sig_alg[] =
{
#if defined(MBEDTLS_RSA_C)
#if defined(MBEDTLS_MD2_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_MD2 ), "md2WithRSAEncryption", "RSA with MD2" },
MBEDTLS_MD_MD2, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_MD4 ), "md4WithRSAEncryption", "RSA with MD4" },
MBEDTLS_MD_MD4, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_MD5 ), "md5WithRSAEncryption", "RSA with MD5" },
MBEDTLS_MD_MD5, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA1 ), "sha-1WithRSAEncryption", "RSA with SHA1" },
MBEDTLS_MD_SHA1, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA224 ), "sha224WithRSAEncryption", "RSA with SHA-224" },
MBEDTLS_MD_SHA224, MBEDTLS_PK_RSA,
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA256 ), "sha256WithRSAEncryption", "RSA with SHA-256" },
MBEDTLS_MD_SHA256, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA384 ), "sha384WithRSAEncryption", "RSA with SHA-384" },
MBEDTLS_MD_SHA384, MBEDTLS_PK_RSA,
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA512 ), "sha512WithRSAEncryption", "RSA with SHA-512" },
MBEDTLS_MD_SHA512, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_RSA_SHA_OBS ), "sha-1WithRSAEncryption", "RSA with SHA1" },
MBEDTLS_MD_SHA1, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECDSA_C)
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA1 ), "ecdsa-with-SHA1", "ECDSA with SHA1" },
MBEDTLS_MD_SHA1, MBEDTLS_PK_ECDSA,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA224 ), "ecdsa-with-SHA224", "ECDSA with SHA224" },
MBEDTLS_MD_SHA224, MBEDTLS_PK_ECDSA,
},
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA256 ), "ecdsa-with-SHA256", "ECDSA with SHA256" },
MBEDTLS_MD_SHA256, MBEDTLS_PK_ECDSA,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA384 ), "ecdsa-with-SHA384", "ECDSA with SHA384" },
MBEDTLS_MD_SHA384, MBEDTLS_PK_ECDSA,
},
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA512 ), "ecdsa-with-SHA512", "ECDSA with SHA512" },
MBEDTLS_MD_SHA512, MBEDTLS_PK_ECDSA,
},
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_ECDSA_C */
#if defined(MBEDTLS_RSA_C)
{
{ ADD_LEN( MBEDTLS_OID_RSASSA_PSS ), "RSASSA-PSS", "RSASSA-PSS" },
MBEDTLS_MD_NONE, MBEDTLS_PK_RSASSA_PSS,
},
#endif /* MBEDTLS_RSA_C */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE, MBEDTLS_PK_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_sig_alg_t, sig_alg, oid_sig_alg)
FN_OID_GET_DESCRIPTOR_ATTR1(mbedtls_oid_get_sig_alg_desc, oid_sig_alg_t, sig_alg, const char *, description)
FN_OID_GET_ATTR2(mbedtls_oid_get_sig_alg, oid_sig_alg_t, sig_alg, mbedtls_md_type_t, md_alg, mbedtls_pk_type_t, pk_alg)
FN_OID_GET_OID_BY_ATTR2(mbedtls_oid_get_oid_by_sig_alg, oid_sig_alg_t, oid_sig_alg, mbedtls_pk_type_t, pk_alg, mbedtls_md_type_t, md_alg)
#endif /* MBEDTLS_MD_C */
/*
* For PublicKeyInfo (PKCS1, RFC 5480)
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_pk_type_t pk_alg;
} oid_pk_alg_t;
static const oid_pk_alg_t oid_pk_alg[] =
{
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_RSA ), "rsaEncryption", "RSA" },
MBEDTLS_PK_RSA,
},
{
{ ADD_LEN( MBEDTLS_OID_EC_ALG_UNRESTRICTED ), "id-ecPublicKey", "Generic EC key" },
MBEDTLS_PK_ECKEY,
},
{
{ ADD_LEN( MBEDTLS_OID_EC_ALG_ECDH ), "id-ecDH", "EC key for ECDH" },
MBEDTLS_PK_ECKEY_DH,
},
{
{ NULL, 0, NULL, NULL },
MBEDTLS_PK_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_pk_alg_t, pk_alg, oid_pk_alg)
FN_OID_GET_ATTR1(mbedtls_oid_get_pk_alg, oid_pk_alg_t, pk_alg, mbedtls_pk_type_t, pk_alg)
FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_pk_alg, oid_pk_alg_t, oid_pk_alg, mbedtls_pk_type_t, pk_alg)
#if defined(MBEDTLS_ECP_C)
/*
* For namedCurve (RFC 5480)
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_ecp_group_id grp_id;
} oid_ecp_grp_t;
static const oid_ecp_grp_t oid_ecp_grp[] =
{
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP192R1 ), "secp192r1", "secp192r1" },
MBEDTLS_ECP_DP_SECP192R1,
},
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP224R1 ), "secp224r1", "secp224r1" },
MBEDTLS_ECP_DP_SECP224R1,
},
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP256R1 ), "secp256r1", "secp256r1" },
MBEDTLS_ECP_DP_SECP256R1,
},
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP384R1 ), "secp384r1", "secp384r1" },
MBEDTLS_ECP_DP_SECP384R1,
},
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP521R1 ), "secp521r1", "secp521r1" },
MBEDTLS_ECP_DP_SECP521R1,
},
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP192K1 ), "secp192k1", "secp192k1" },
MBEDTLS_ECP_DP_SECP192K1,
},
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP224K1 ), "secp224k1", "secp224k1" },
MBEDTLS_ECP_DP_SECP224K1,
},
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP256K1 ), "secp256k1", "secp256k1" },
MBEDTLS_ECP_DP_SECP256K1,
},
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_BP256R1 ), "brainpoolP256r1","brainpool256r1" },
MBEDTLS_ECP_DP_BP256R1,
},
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_BP384R1 ), "brainpoolP384r1","brainpool384r1" },
MBEDTLS_ECP_DP_BP384R1,
},
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_BP512R1 ), "brainpoolP512r1","brainpool512r1" },
MBEDTLS_ECP_DP_BP512R1,
},
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_ECP_DP_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_ecp_grp_t, grp_id, oid_ecp_grp)
FN_OID_GET_ATTR1(mbedtls_oid_get_ec_grp, oid_ecp_grp_t, grp_id, mbedtls_ecp_group_id, grp_id)
FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_ec_grp, oid_ecp_grp_t, oid_ecp_grp, mbedtls_ecp_group_id, grp_id)
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_CIPHER_C)
/*
* For PKCS#5 PBES2 encryption algorithm
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_cipher_type_t cipher_alg;
} oid_cipher_alg_t;
static const oid_cipher_alg_t oid_cipher_alg[] =
{
{
{ ADD_LEN( MBEDTLS_OID_DES_CBC ), "desCBC", "DES-CBC" },
MBEDTLS_CIPHER_DES_CBC,
},
{
{ ADD_LEN( MBEDTLS_OID_DES_EDE3_CBC ), "des-ede3-cbc", "DES-EDE3-CBC" },
MBEDTLS_CIPHER_DES_EDE3_CBC,
},
{
{ NULL, 0, NULL, NULL },
MBEDTLS_CIPHER_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_cipher_alg_t, cipher_alg, oid_cipher_alg)
FN_OID_GET_ATTR1(mbedtls_oid_get_cipher_alg, oid_cipher_alg_t, cipher_alg, mbedtls_cipher_type_t, cipher_alg)
#endif /* MBEDTLS_CIPHER_C */
#if defined(MBEDTLS_MD_C)
/*
* For digestAlgorithm
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_alg;
} oid_md_alg_t;
static const oid_md_alg_t oid_md_alg[] =
{
#if defined(MBEDTLS_MD2_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD2 ), "id-md2", "MD2" },
MBEDTLS_MD_MD2,
},
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD4 ), "id-md4", "MD4" },
MBEDTLS_MD_MD4,
},
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD5 ), "id-md5", "MD5" },
MBEDTLS_MD_MD5,
},
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA1 ), "id-sha1", "SHA-1" },
MBEDTLS_MD_SHA1,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA224 ), "id-sha224", "SHA-224" },
MBEDTLS_MD_SHA224,
},
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA256 ), "id-sha256", "SHA-256" },
MBEDTLS_MD_SHA256,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA384 ), "id-sha384", "SHA-384" },
MBEDTLS_MD_SHA384,
},
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA512 ), "id-sha512", "SHA-512" },
MBEDTLS_MD_SHA512,
},
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_RIPEMD160_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_RIPEMD160 ), "id-ripemd160", "RIPEMD-160" },
MBEDTLS_MD_RIPEMD160,
},
#endif /* MBEDTLS_RIPEMD160_C */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_md_alg_t, md_alg, oid_md_alg)
FN_OID_GET_ATTR1(mbedtls_oid_get_md_alg, oid_md_alg_t, md_alg, mbedtls_md_type_t, md_alg)
FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_md, oid_md_alg_t, oid_md_alg, mbedtls_md_type_t, md_alg)
/*
* For HMAC digestAlgorithm
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_hmac;
} oid_md_hmac_t;
static const oid_md_hmac_t oid_md_hmac[] =
{
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA1 ), "hmacSHA1", "HMAC-SHA-1" },
MBEDTLS_MD_SHA1,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA224 ), "hmacSHA224", "HMAC-SHA-224" },
MBEDTLS_MD_SHA224,
},
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA256 ), "hmacSHA256", "HMAC-SHA-256" },
MBEDTLS_MD_SHA256,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA384 ), "hmacSHA384", "HMAC-SHA-384" },
MBEDTLS_MD_SHA384,
},
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA512 ), "hmacSHA512", "HMAC-SHA-512" },
MBEDTLS_MD_SHA512,
},
#endif /* MBEDTLS_SHA512_C */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_md_hmac_t, md_hmac, oid_md_hmac)
FN_OID_GET_ATTR1(mbedtls_oid_get_md_hmac, oid_md_hmac_t, md_hmac, mbedtls_md_type_t, md_hmac)
#endif /* MBEDTLS_MD_C */
#if defined(MBEDTLS_PKCS12_C)
/*
* For PKCS#12 PBEs
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_alg;
mbedtls_cipher_type_t cipher_alg;
} oid_pkcs12_pbe_alg_t;
static const oid_pkcs12_pbe_alg_t oid_pkcs12_pbe_alg[] =
{
{
{ ADD_LEN( MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC ), "pbeWithSHAAnd3-KeyTripleDES-CBC", "PBE with SHA1 and 3-Key 3DES" },
MBEDTLS_MD_SHA1, MBEDTLS_CIPHER_DES_EDE3_CBC,
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC ), "pbeWithSHAAnd2-KeyTripleDES-CBC", "PBE with SHA1 and 2-Key 3DES" },
MBEDTLS_MD_SHA1, MBEDTLS_CIPHER_DES_EDE_CBC,
},
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE, MBEDTLS_CIPHER_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, oid_pkcs12_pbe_alg)
FN_OID_GET_ATTR2(mbedtls_oid_get_pkcs12_pbe_alg, oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, mbedtls_md_type_t, md_alg, mbedtls_cipher_type_t, cipher_alg)
#endif /* MBEDTLS_PKCS12_C */
#define OID_SAFE_SNPRINTF \
do { \
if( ret < 0 || (size_t) ret >= n ) \
return( MBEDTLS_ERR_OID_BUF_TOO_SMALL ); \
\
n -= (size_t) ret; \
p += (size_t) ret; \
} while( 0 )
/* Return the x.y.z.... style numeric string for the given OID */
int mbedtls_oid_get_numeric_string( char *buf, size_t size,
const mbedtls_asn1_buf *oid )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t i, n;
unsigned int value;
char *p;
p = buf;
n = size;
/* First byte contains first two dots */
if( oid->len > 0 )
{
ret = mbedtls_snprintf( p, n, "%d.%d", oid->p[0] / 40, oid->p[0] % 40 );
OID_SAFE_SNPRINTF;
}
value = 0;
for( i = 1; i < oid->len; i++ )
{
/* Prevent overflow in value. */
if( ( ( value << 7 ) >> 7 ) != value )
return( MBEDTLS_ERR_OID_BUF_TOO_SMALL );
value <<= 7;
value += oid->p[i] & 0x7F;
if( !( oid->p[i] & 0x80 ) )
{
/* Last byte */
ret = mbedtls_snprintf( p, n, ".%u", value );
OID_SAFE_SNPRINTF;
value = 0;
}
}
return( (int) ( size - n ) );
}
#endif /* MBEDTLS_OID_C */

View File

@@ -1,485 +0,0 @@
/*
* Privacy Enhanced Mail (PEM) decoding
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#include "mbedtls/base64.h"
#include "mbedtls/des.h"
#include "mbedtls/aes.h"
#include "mbedtls/md5.h"
#include "mbedtls/cipher.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
void mbedtls_pem_init( mbedtls_pem_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_pem_context ) );
}
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
/*
* Read a 16-byte hex string and convert it to binary
*/
static int pem_get_iv( const unsigned char *s, unsigned char *iv,
size_t iv_len )
{
size_t i, j, k;
memset( iv, 0, iv_len );
for( i = 0; i < iv_len * 2; i++, s++ )
{
if( *s >= '0' && *s <= '9' ) j = *s - '0'; else
if( *s >= 'A' && *s <= 'F' ) j = *s - '7'; else
if( *s >= 'a' && *s <= 'f' ) j = *s - 'W'; else
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
k = ( ( i & 1 ) != 0 ) ? j : j << 4;
iv[i >> 1] = (unsigned char)( iv[i >> 1] | k );
}
return( 0 );
}
static int pem_pbkdf1( unsigned char *key, size_t keylen,
unsigned char *iv,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_md5_context md5_ctx;
unsigned char md5sum[16];
size_t use_len;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_md5_init( &md5_ctx );
/*
* key[ 0..15] = MD5(pwd || IV)
*/
if( ( ret = mbedtls_md5_starts_ret( &md5_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, iv, 8 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &md5_ctx, md5sum ) ) != 0 )
goto exit;
if( keylen <= 16 )
{
memcpy( key, md5sum, keylen );
goto exit;
}
memcpy( key, md5sum, 16 );
/*
* key[16..23] = MD5(key[ 0..15] || pwd || IV])
*/
if( ( ret = mbedtls_md5_starts_ret( &md5_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, md5sum, 16 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, iv, 8 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &md5_ctx, md5sum ) ) != 0 )
goto exit;
use_len = 16;
if( keylen < 32 )
use_len = keylen - 16;
memcpy( key + 16, md5sum, use_len );
exit:
mbedtls_md5_free( &md5_ctx );
mbedtls_platform_zeroize( md5sum, 16 );
return( ret );
}
#if defined(MBEDTLS_DES_C)
/*
* Decrypt with DES-CBC, using PBKDF1 for key derivation
*/
static int pem_des_decrypt( unsigned char des_iv[8],
unsigned char *buf, size_t buflen,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_des_context des_ctx;
unsigned char des_key[8];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_des_init( &des_ctx );
if( ( ret = pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_des_setkey_dec( &des_ctx, des_key ) ) != 0 )
goto exit;
ret = mbedtls_des_crypt_cbc( &des_ctx, MBEDTLS_DES_DECRYPT, buflen,
des_iv, buf, buf );
exit:
mbedtls_des_free( &des_ctx );
mbedtls_platform_zeroize( des_key, 8 );
return( ret );
}
/*
* Decrypt with 3DES-CBC, using PBKDF1 for key derivation
*/
static int pem_des3_decrypt( unsigned char des3_iv[8],
unsigned char *buf, size_t buflen,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_des3_context des3_ctx;
unsigned char des3_key[24];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_des3_init( &des3_ctx );
if( ( ret = pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_des3_set3key_dec( &des3_ctx, des3_key ) ) != 0 )
goto exit;
ret = mbedtls_des3_crypt_cbc( &des3_ctx, MBEDTLS_DES_DECRYPT, buflen,
des3_iv, buf, buf );
exit:
mbedtls_des3_free( &des3_ctx );
mbedtls_platform_zeroize( des3_key, 24 );
return( ret );
}
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
/*
* Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation
*/
static int pem_aes_decrypt( unsigned char aes_iv[16], unsigned int keylen,
unsigned char *buf, size_t buflen,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_aes_context aes_ctx;
unsigned char aes_key[32];
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_aes_init( &aes_ctx );
if( ( ret = pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 ) ) != 0 )
goto exit;
ret = mbedtls_aes_crypt_cbc( &aes_ctx, MBEDTLS_AES_DECRYPT, buflen,
aes_iv, buf, buf );
exit:
mbedtls_aes_free( &aes_ctx );
mbedtls_platform_zeroize( aes_key, keylen );
return( ret );
}
#endif /* MBEDTLS_AES_C */
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer,
const unsigned char *data, const unsigned char *pwd,
size_t pwdlen, size_t *use_len )
{
int ret, enc;
size_t len;
unsigned char *buf;
const unsigned char *s1, *s2, *end;
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
unsigned char pem_iv[16];
mbedtls_cipher_type_t enc_alg = MBEDTLS_CIPHER_NONE;
#else
((void) pwd);
((void) pwdlen);
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
if( ctx == NULL )
return( MBEDTLS_ERR_PEM_BAD_INPUT_DATA );
s1 = (unsigned char *) strstr( (const char *) data, header );
if( s1 == NULL )
return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
s2 = (unsigned char *) strstr( (const char *) data, footer );
if( s2 == NULL || s2 <= s1 )
return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
s1 += strlen( header );
if( *s1 == ' ' ) s1++;
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
end = s2;
end += strlen( footer );
if( *end == ' ' ) end++;
if( *end == '\r' ) end++;
if( *end == '\n' ) end++;
*use_len = end - data;
enc = 0;
if( s2 - s1 >= 22 && memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 )
{
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
enc++;
s1 += 22;
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_INVALID_DATA );
#if defined(MBEDTLS_DES_C)
if( s2 - s1 >= 23 && memcmp( s1, "DEK-Info: DES-EDE3-CBC,", 23 ) == 0 )
{
enc_alg = MBEDTLS_CIPHER_DES_EDE3_CBC;
s1 += 23;
if( s2 - s1 < 16 || pem_get_iv( s1, pem_iv, 8 ) != 0 )
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
s1 += 16;
}
else if( s2 - s1 >= 18 && memcmp( s1, "DEK-Info: DES-CBC,", 18 ) == 0 )
{
enc_alg = MBEDTLS_CIPHER_DES_CBC;
s1 += 18;
if( s2 - s1 < 16 || pem_get_iv( s1, pem_iv, 8) != 0 )
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
s1 += 16;
}
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
if( s2 - s1 >= 14 && memcmp( s1, "DEK-Info: AES-", 14 ) == 0 )
{
if( s2 - s1 < 22 )
return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
else if( memcmp( s1, "DEK-Info: AES-128-CBC,", 22 ) == 0 )
enc_alg = MBEDTLS_CIPHER_AES_128_CBC;
else if( memcmp( s1, "DEK-Info: AES-192-CBC,", 22 ) == 0 )
enc_alg = MBEDTLS_CIPHER_AES_192_CBC;
else if( memcmp( s1, "DEK-Info: AES-256-CBC,", 22 ) == 0 )
enc_alg = MBEDTLS_CIPHER_AES_256_CBC;
else
return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
s1 += 22;
if( s2 - s1 < 32 || pem_get_iv( s1, pem_iv, 16 ) != 0 )
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
s1 += 32;
}
#endif /* MBEDTLS_AES_C */
if( enc_alg == MBEDTLS_CIPHER_NONE )
return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_INVALID_DATA );
#else
return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
}
if( s1 >= s2 )
return( MBEDTLS_ERR_PEM_INVALID_DATA );
ret = mbedtls_base64_decode( NULL, 0, &len, s1, s2 - s1 );
if( ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER )
return( MBEDTLS_ERR_PEM_INVALID_DATA + ret );
if( ( buf = mbedtls_calloc( 1, len ) ) == NULL )
return( MBEDTLS_ERR_PEM_ALLOC_FAILED );
if( ( ret = mbedtls_base64_decode( buf, len, &len, s1, s2 - s1 ) ) != 0 )
{
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_INVALID_DATA + ret );
}
if( enc != 0 )
{
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
if( pwd == NULL )
{
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_PASSWORD_REQUIRED );
}
ret = 0;
#if defined(MBEDTLS_DES_C)
if( enc_alg == MBEDTLS_CIPHER_DES_EDE3_CBC )
ret = pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen );
else if( enc_alg == MBEDTLS_CIPHER_DES_CBC )
ret = pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen );
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
if( enc_alg == MBEDTLS_CIPHER_AES_128_CBC )
ret = pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen );
else if( enc_alg == MBEDTLS_CIPHER_AES_192_CBC )
ret = pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen );
else if( enc_alg == MBEDTLS_CIPHER_AES_256_CBC )
ret = pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen );
#endif /* MBEDTLS_AES_C */
if( ret != 0 )
{
mbedtls_free( buf );
return( ret );
}
/*
* The result will be ASN.1 starting with a SEQUENCE tag, with 1 to 3
* length bytes (allow 4 to be sure) in all known use cases.
*
* Use that as a heuristic to try to detect password mismatches.
*/
if( len <= 2 || buf[0] != 0x30 || buf[1] > 0x83 )
{
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_PASSWORD_MISMATCH );
}
#else
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
}
ctx->buf = buf;
ctx->buflen = len;
return( 0 );
}
void mbedtls_pem_free( mbedtls_pem_context *ctx )
{
if ( ctx->buf != NULL )
{
mbedtls_platform_zeroize( ctx->buf, ctx->buflen );
mbedtls_free( ctx->buf );
}
mbedtls_free( ctx->info );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pem_context ) );
}
#endif /* MBEDTLS_PEM_PARSE_C */
#if defined(MBEDTLS_PEM_WRITE_C)
int mbedtls_pem_write_buffer( const char *header, const char *footer,
const unsigned char *der_data, size_t der_len,
unsigned char *buf, size_t buf_len, size_t *olen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *encode_buf = NULL, *c, *p = buf;
size_t len = 0, use_len, add_len = 0;
mbedtls_base64_encode( NULL, 0, &use_len, der_data, der_len );
add_len = strlen( header ) + strlen( footer ) + ( use_len / 64 ) + 1;
if( use_len + add_len > buf_len )
{
*olen = use_len + add_len;
return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
}
if( use_len != 0 &&
( ( encode_buf = mbedtls_calloc( 1, use_len ) ) == NULL ) )
return( MBEDTLS_ERR_PEM_ALLOC_FAILED );
if( ( ret = mbedtls_base64_encode( encode_buf, use_len, &use_len, der_data,
der_len ) ) != 0 )
{
mbedtls_free( encode_buf );
return( ret );
}
memcpy( p, header, strlen( header ) );
p += strlen( header );
c = encode_buf;
while( use_len )
{
len = ( use_len > 64 ) ? 64 : use_len;
memcpy( p, c, len );
use_len -= len;
p += len;
c += len;
*p++ = '\n';
}
memcpy( p, footer, strlen( footer ) );
p += strlen( footer );
*p++ = '\0';
*olen = p - buf;
mbedtls_free( encode_buf );
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */

View File

@@ -1,635 +0,0 @@
/*
* Public Key abstraction layer
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_PK_C)
#include "mbedtls/pk.h"
#include "mbedtls/pk_internal.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
#include "mbedtls/psa_util.h"
#endif
#include <limits.h>
#include <stdint.h>
/* Parameter validation macros based on platform_util.h */
#define PK_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA )
#define PK_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
/*
* Initialise a mbedtls_pk_context
*/
void mbedtls_pk_init( mbedtls_pk_context *ctx )
{
PK_VALIDATE( ctx != NULL );
ctx->pk_info = NULL;
ctx->pk_ctx = NULL;
}
/*
* Free (the components of) a mbedtls_pk_context
*/
void mbedtls_pk_free( mbedtls_pk_context *ctx )
{
if( ctx == NULL )
return;
if ( ctx->pk_info != NULL )
ctx->pk_info->ctx_free_func( ctx->pk_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pk_context ) );
}
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Initialize a restart context
*/
void mbedtls_pk_restart_init( mbedtls_pk_restart_ctx *ctx )
{
PK_VALIDATE( ctx != NULL );
ctx->pk_info = NULL;
ctx->rs_ctx = NULL;
}
/*
* Free the components of a restart context
*/
void mbedtls_pk_restart_free( mbedtls_pk_restart_ctx *ctx )
{
if( ctx == NULL || ctx->pk_info == NULL ||
ctx->pk_info->rs_free_func == NULL )
{
return;
}
ctx->pk_info->rs_free_func( ctx->rs_ctx );
ctx->pk_info = NULL;
ctx->rs_ctx = NULL;
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/*
* Get pk_info structure from type
*/
const mbedtls_pk_info_t * mbedtls_pk_info_from_type( mbedtls_pk_type_t pk_type )
{
switch( pk_type ) {
#if defined(MBEDTLS_RSA_C)
case MBEDTLS_PK_RSA:
return( &mbedtls_rsa_info );
#endif
#if defined(MBEDTLS_ECP_C)
case MBEDTLS_PK_ECKEY:
return( &mbedtls_eckey_info );
case MBEDTLS_PK_ECKEY_DH:
return( &mbedtls_eckeydh_info );
#endif
#if defined(MBEDTLS_ECDSA_C)
case MBEDTLS_PK_ECDSA:
return( &mbedtls_ecdsa_info );
#endif
/* MBEDTLS_PK_RSA_ALT omitted on purpose */
default:
return( NULL );
}
}
/*
* Initialise context
*/
int mbedtls_pk_setup( mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info )
{
PK_VALIDATE_RET( ctx != NULL );
if( info == NULL || ctx->pk_info != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
return( 0 );
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/*
* Initialise a PSA-wrapping context
*/
int mbedtls_pk_setup_opaque( mbedtls_pk_context *ctx, const psa_key_handle_t key )
{
const mbedtls_pk_info_t * const info = &mbedtls_pk_opaque_info;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_handle_t *pk_ctx;
psa_key_type_t type;
if( ctx == NULL || ctx->pk_info != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( PSA_SUCCESS != psa_get_key_attributes( key, &attributes ) )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
type = psa_get_key_type( &attributes );
psa_reset_key_attributes( &attributes );
/* Current implementation of can_do() relies on this. */
if( ! PSA_KEY_TYPE_IS_ECC_KEY_PAIR( type ) )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) ;
if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
pk_ctx = (psa_key_handle_t *) ctx->pk_ctx;
*pk_ctx = key;
return( 0 );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/*
* Initialize an RSA-alt context
*/
int mbedtls_pk_setup_rsa_alt( mbedtls_pk_context *ctx, void * key,
mbedtls_pk_rsa_alt_decrypt_func decrypt_func,
mbedtls_pk_rsa_alt_sign_func sign_func,
mbedtls_pk_rsa_alt_key_len_func key_len_func )
{
mbedtls_rsa_alt_context *rsa_alt;
const mbedtls_pk_info_t *info = &mbedtls_rsa_alt_info;
PK_VALIDATE_RET( ctx != NULL );
if( ctx->pk_info != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
rsa_alt = (mbedtls_rsa_alt_context *) ctx->pk_ctx;
rsa_alt->key = key;
rsa_alt->decrypt_func = decrypt_func;
rsa_alt->sign_func = sign_func;
rsa_alt->key_len_func = key_len_func;
return( 0 );
}
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
/*
* Tell if a PK can do the operations of the given type
*/
int mbedtls_pk_can_do( const mbedtls_pk_context *ctx, mbedtls_pk_type_t type )
{
/* A context with null pk_info is not set up yet and can't do anything.
* For backward compatibility, also accept NULL instead of a context
* pointer. */
if( ctx == NULL || ctx->pk_info == NULL )
return( 0 );
return( ctx->pk_info->can_do( type ) );
}
/*
* Helper for mbedtls_pk_sign and mbedtls_pk_verify
*/
static inline int pk_hashlen_helper( mbedtls_md_type_t md_alg, size_t *hash_len )
{
const mbedtls_md_info_t *md_info;
if( *hash_len != 0 )
return( 0 );
if( ( md_info = mbedtls_md_info_from_type( md_alg ) ) == NULL )
return( -1 );
*hash_len = mbedtls_md_get_size( md_info );
return( 0 );
}
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Helper to set up a restart context if needed
*/
static int pk_restart_setup( mbedtls_pk_restart_ctx *ctx,
const mbedtls_pk_info_t *info )
{
/* Don't do anything if already set up or invalid */
if( ctx == NULL || ctx->pk_info != NULL )
return( 0 );
/* Should never happen when we're called */
if( info->rs_alloc_func == NULL || info->rs_free_func == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->rs_ctx = info->rs_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
return( 0 );
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/*
* Verify a signature (restartable)
*/
int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
mbedtls_pk_restart_ctx *rs_ctx )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE && hash_len == 0 ) ||
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == NULL ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* optimization: use non-restartable version if restart disabled */
if( rs_ctx != NULL &&
mbedtls_ecp_restart_is_enabled() &&
ctx->pk_info->verify_rs_func != NULL )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = pk_restart_setup( rs_ctx, ctx->pk_info ) ) != 0 )
return( ret );
ret = ctx->pk_info->verify_rs_func( ctx->pk_ctx,
md_alg, hash, hash_len, sig, sig_len, rs_ctx->rs_ctx );
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
mbedtls_pk_restart_free( rs_ctx );
return( ret );
}
#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
(void) rs_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
if( ctx->pk_info->verify_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->verify_func( ctx->pk_ctx, md_alg, hash, hash_len,
sig, sig_len ) );
}
/*
* Verify a signature
*/
int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
return( mbedtls_pk_verify_restartable( ctx, md_alg, hash, hash_len,
sig, sig_len, NULL ) );
}
/*
* Verify a signature with options
*/
int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options,
mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE && hash_len == 0 ) ||
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ! mbedtls_pk_can_do( ctx, type ) )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
if( type == MBEDTLS_PK_RSASSA_PSS )
{
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21)
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const mbedtls_pk_rsassa_pss_options *pss_opts;
#if SIZE_MAX > UINT_MAX
if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#endif /* SIZE_MAX > UINT_MAX */
if( options == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
pss_opts = (const mbedtls_pk_rsassa_pss_options *) options;
if( sig_len < mbedtls_pk_get_len( ctx ) )
return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
ret = mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_pk_rsa( *ctx ),
NULL, NULL, MBEDTLS_RSA_PUBLIC,
md_alg, (unsigned int) hash_len, hash,
pss_opts->mgf1_hash_id,
pss_opts->expected_salt_len,
sig );
if( ret != 0 )
return( ret );
if( sig_len > mbedtls_pk_get_len( ctx ) )
return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
return( 0 );
#else
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_RSA_C && MBEDTLS_PKCS1_V21 */
}
/* General case: no options */
if( options != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
return( mbedtls_pk_verify( ctx, md_alg, hash, hash_len, sig, sig_len ) );
}
/*
* Make a signature (restartable)
*/
int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_pk_restart_ctx *rs_ctx )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE && hash_len == 0 ) ||
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == NULL ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* optimization: use non-restartable version if restart disabled */
if( rs_ctx != NULL &&
mbedtls_ecp_restart_is_enabled() &&
ctx->pk_info->sign_rs_func != NULL )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = pk_restart_setup( rs_ctx, ctx->pk_info ) ) != 0 )
return( ret );
ret = ctx->pk_info->sign_rs_func( ctx->pk_ctx, md_alg,
hash, hash_len, sig, sig_len, f_rng, p_rng, rs_ctx->rs_ctx );
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
mbedtls_pk_restart_free( rs_ctx );
return( ret );
}
#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
(void) rs_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
if( ctx->pk_info->sign_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->sign_func( ctx->pk_ctx, md_alg, hash, hash_len,
sig, sig_len, f_rng, p_rng ) );
}
/*
* Make a signature
*/
int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
return( mbedtls_pk_sign_restartable( ctx, md_alg, hash, hash_len,
sig, sig_len, f_rng, p_rng, NULL ) );
}
/*
* Decrypt message
*/
int mbedtls_pk_decrypt( mbedtls_pk_context *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( input != NULL || ilen == 0 );
PK_VALIDATE_RET( output != NULL || osize == 0 );
PK_VALIDATE_RET( olen != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->decrypt_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->decrypt_func( ctx->pk_ctx, input, ilen,
output, olen, osize, f_rng, p_rng ) );
}
/*
* Encrypt message
*/
int mbedtls_pk_encrypt( mbedtls_pk_context *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( input != NULL || ilen == 0 );
PK_VALIDATE_RET( output != NULL || osize == 0 );
PK_VALIDATE_RET( olen != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->encrypt_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->encrypt_func( ctx->pk_ctx, input, ilen,
output, olen, osize, f_rng, p_rng ) );
}
/*
* Check public-private key pair
*/
int mbedtls_pk_check_pair( const mbedtls_pk_context *pub, const mbedtls_pk_context *prv )
{
PK_VALIDATE_RET( pub != NULL );
PK_VALIDATE_RET( prv != NULL );
if( pub->pk_info == NULL ||
prv->pk_info == NULL )
{
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
}
if( prv->pk_info->check_pair_func == NULL )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
if( prv->pk_info->type == MBEDTLS_PK_RSA_ALT )
{
if( pub->pk_info->type != MBEDTLS_PK_RSA )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
}
else
{
if( pub->pk_info != prv->pk_info )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
}
return( prv->pk_info->check_pair_func( pub->pk_ctx, prv->pk_ctx ) );
}
/*
* Get key size in bits
*/
size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx )
{
/* For backward compatibility, accept NULL or a context that
* isn't set up yet, and return a fake value that should be safe. */
if( ctx == NULL || ctx->pk_info == NULL )
return( 0 );
return( ctx->pk_info->get_bitlen( ctx->pk_ctx ) );
}
/*
* Export debug information
*/
int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items )
{
PK_VALIDATE_RET( ctx != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->debug_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
ctx->pk_info->debug_func( ctx->pk_ctx, items );
return( 0 );
}
/*
* Access the PK type name
*/
const char *mbedtls_pk_get_name( const mbedtls_pk_context *ctx )
{
if( ctx == NULL || ctx->pk_info == NULL )
return( "invalid PK" );
return( ctx->pk_info->name );
}
/*
* Access the PK type
*/
mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx )
{
if( ctx == NULL || ctx->pk_info == NULL )
return( MBEDTLS_PK_NONE );
return( ctx->pk_info->type );
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/*
* Load the key to a PSA key slot,
* then turn the PK context into a wrapper for that key slot.
*
* Currently only works for EC private keys.
*/
int mbedtls_pk_wrap_as_opaque( mbedtls_pk_context *pk,
psa_key_handle_t *handle,
psa_algorithm_t hash_alg )
{
#if !defined(MBEDTLS_ECP_C)
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
#else
const mbedtls_ecp_keypair *ec;
unsigned char d[MBEDTLS_ECP_MAX_BYTES];
size_t d_len;
psa_ecc_family_t curve_id;
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t key_type;
size_t bits;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
/* export the private key material in the format PSA wants */
if( mbedtls_pk_get_type( pk ) != MBEDTLS_PK_ECKEY )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
ec = mbedtls_pk_ec( *pk );
d_len = ( ec->grp.nbits + 7 ) / 8;
if( ( ret = mbedtls_mpi_write_binary( &ec->d, d, d_len ) ) != 0 )
return( ret );
curve_id = mbedtls_ecc_group_to_psa( ec->grp.id, &bits );
key_type = PSA_KEY_TYPE_ECC_KEY_PAIR( curve_id );
/* prepare the key attributes */
psa_set_key_type( &attributes, key_type );
psa_set_key_bits( &attributes, bits );
psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_SIGN_HASH );
psa_set_key_algorithm( &attributes, PSA_ALG_ECDSA(hash_alg) );
/* import private key into PSA */
if( PSA_SUCCESS != psa_import_key( &attributes, d, d_len, handle ) )
return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
/* make PK context wrap the key slot */
mbedtls_pk_free( pk );
mbedtls_pk_init( pk );
return( mbedtls_pk_setup_opaque( pk, *handle ) );
#endif /* MBEDTLS_ECP_C */
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#endif /* MBEDTLS_PK_C */

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@@ -1,238 +0,0 @@
/**
* \file pkcs11.c
*
* \brief Wrapper for PKCS#11 library libpkcs11-helper
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mbedtls/pkcs11.h"
#if defined(MBEDTLS_PKCS11_C)
#include "mbedtls/md.h"
#include "mbedtls/oid.h"
#include "mbedtls/x509_crt.h"
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include <string.h>
void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
}
int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
{
int ret = 1;
unsigned char *cert_blob = NULL;
size_t cert_blob_size = 0;
if( cert == NULL )
{
ret = 2;
goto cleanup;
}
if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
&cert_blob_size ) != CKR_OK )
{
ret = 3;
goto cleanup;
}
cert_blob = mbedtls_calloc( 1, cert_blob_size );
if( NULL == cert_blob )
{
ret = 4;
goto cleanup;
}
if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
&cert_blob_size ) != CKR_OK )
{
ret = 5;
goto cleanup;
}
if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
{
ret = 6;
goto cleanup;
}
ret = 0;
cleanup:
if( NULL != cert_blob )
mbedtls_free( cert_blob );
return( ret );
}
int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
pkcs11h_certificate_t pkcs11_cert )
{
int ret = 1;
mbedtls_x509_crt cert;
mbedtls_x509_crt_init( &cert );
if( priv_key == NULL )
goto cleanup;
if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
goto cleanup;
priv_key->len = mbedtls_pk_get_len( &cert.pk );
priv_key->pkcs11h_cert = pkcs11_cert;
ret = 0;
cleanup:
mbedtls_x509_crt_free( &cert );
return( ret );
}
void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
{
if( NULL != priv_key )
pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
}
int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
int mode, size_t *olen,
const unsigned char *input,
unsigned char *output,
size_t output_max_len )
{
size_t input_len, output_len;
if( NULL == ctx )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( MBEDTLS_RSA_PRIVATE != mode )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
output_len = input_len = ctx->len;
if( input_len < 16 || input_len > output_max_len )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/* Determine size of output buffer */
if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
input_len, NULL, &output_len ) != CKR_OK )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
if( output_len > output_max_len )
return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
input_len, output, &output_len ) != CKR_OK )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
*olen = output_len;
return( 0 );
}
int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
unsigned char *sig )
{
size_t sig_len = 0, asn_len = 0, oid_size = 0;
unsigned char *p = sig;
const char *oid;
if( NULL == ctx )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( MBEDTLS_RSA_PRIVATE != mode )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( md_alg != MBEDTLS_MD_NONE )
{
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hashlen = mbedtls_md_get_size( md_info );
asn_len = 10 + oid_size;
}
sig_len = ctx->len;
if( hashlen > sig_len || asn_len > sig_len ||
hashlen + asn_len > sig_len )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
if( md_alg != MBEDTLS_MD_NONE )
{
/*
* DigestInfo ::= SEQUENCE {
* digestAlgorithm DigestAlgorithmIdentifier,
* digest Digest }
*
* DigestAlgorithmIdentifier ::= AlgorithmIdentifier
*
* Digest ::= OCTET STRING
*/
*p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
*p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
*p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
*p++ = (unsigned char) ( 0x04 + oid_size );
*p++ = MBEDTLS_ASN1_OID;
*p++ = oid_size & 0xFF;
memcpy( p, oid, oid_size );
p += oid_size;
*p++ = MBEDTLS_ASN1_NULL;
*p++ = 0x00;
*p++ = MBEDTLS_ASN1_OCTET_STRING;
*p++ = hashlen;
}
memcpy( p, hash, hashlen );
if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
asn_len + hashlen, sig, &sig_len ) != CKR_OK )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
return( 0 );
}
#endif /* defined(MBEDTLS_PKCS11_C) */

View File

@@ -1,360 +0,0 @@
/*
* PKCS#12 Personal Information Exchange Syntax
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The PKCS #12 Personal Information Exchange Syntax Standard v1.1
*
* http://www.rsa.com/rsalabs/pkcs/files/h11301-wp-pkcs-12v1-1-personal-information-exchange-syntax.pdf
* ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12v1-1.asn
*/
#include "common.h"
#if defined(MBEDTLS_PKCS12_C)
#include "mbedtls/pkcs12.h"
#include "mbedtls/asn1.h"
#include "mbedtls/cipher.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_ARC4_C)
#include "mbedtls/arc4.h"
#endif
#if defined(MBEDTLS_DES_C)
#include "mbedtls/des.h"
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
static int pkcs12_parse_pbe_params( mbedtls_asn1_buf *params,
mbedtls_asn1_buf *salt, int *iterations )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char **p = &params->p;
const unsigned char *end = params->p + params->len;
/*
* pkcs-12PbeParams ::= SEQUENCE {
* salt OCTET STRING,
* iterations INTEGER
* }
*
*/
if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
if( ( ret = mbedtls_asn1_get_tag( p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + ret );
salt->p = *p;
*p += salt->len;
if( ( ret = mbedtls_asn1_get_int( p, end, iterations ) ) != 0 )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + ret );
if( *p != end )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
#define PKCS12_MAX_PWDLEN 128
static int pkcs12_pbe_derive_key_iv( mbedtls_asn1_buf *pbe_params, mbedtls_md_type_t md_type,
const unsigned char *pwd, size_t pwdlen,
unsigned char *key, size_t keylen,
unsigned char *iv, size_t ivlen )
{
int ret, iterations = 0;
mbedtls_asn1_buf salt;
size_t i;
unsigned char unipwd[PKCS12_MAX_PWDLEN * 2 + 2];
if( pwdlen > PKCS12_MAX_PWDLEN )
return( MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA );
memset( &salt, 0, sizeof(mbedtls_asn1_buf) );
memset( &unipwd, 0, sizeof(unipwd) );
if( ( ret = pkcs12_parse_pbe_params( pbe_params, &salt,
&iterations ) ) != 0 )
return( ret );
for( i = 0; i < pwdlen; i++ )
unipwd[i * 2 + 1] = pwd[i];
if( ( ret = mbedtls_pkcs12_derivation( key, keylen, unipwd, pwdlen * 2 + 2,
salt.p, salt.len, md_type,
MBEDTLS_PKCS12_DERIVE_KEY, iterations ) ) != 0 )
{
return( ret );
}
if( iv == NULL || ivlen == 0 )
return( 0 );
if( ( ret = mbedtls_pkcs12_derivation( iv, ivlen, unipwd, pwdlen * 2 + 2,
salt.p, salt.len, md_type,
MBEDTLS_PKCS12_DERIVE_IV, iterations ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#undef PKCS12_MAX_PWDLEN
int mbedtls_pkcs12_pbe_sha1_rc4_128( mbedtls_asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t len,
unsigned char *output )
{
#if !defined(MBEDTLS_ARC4_C)
((void) pbe_params);
((void) mode);
((void) pwd);
((void) pwdlen);
((void) data);
((void) len);
((void) output);
return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE );
#else
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char key[16];
mbedtls_arc4_context ctx;
((void) mode);
mbedtls_arc4_init( &ctx );
if( ( ret = pkcs12_pbe_derive_key_iv( pbe_params, MBEDTLS_MD_SHA1,
pwd, pwdlen,
key, 16, NULL, 0 ) ) != 0 )
{
return( ret );
}
mbedtls_arc4_setup( &ctx, key, 16 );
if( ( ret = mbedtls_arc4_crypt( &ctx, len, data, output ) ) != 0 )
goto exit;
exit:
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_arc4_free( &ctx );
return( ret );
#endif /* MBEDTLS_ARC4_C */
}
int mbedtls_pkcs12_pbe( mbedtls_asn1_buf *pbe_params, int mode,
mbedtls_cipher_type_t cipher_type, mbedtls_md_type_t md_type,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t len,
unsigned char *output )
{
int ret, keylen = 0;
unsigned char key[32];
unsigned char iv[16];
const mbedtls_cipher_info_t *cipher_info;
mbedtls_cipher_context_t cipher_ctx;
size_t olen = 0;
cipher_info = mbedtls_cipher_info_from_type( cipher_type );
if( cipher_info == NULL )
return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE );
keylen = cipher_info->key_bitlen / 8;
if( ( ret = pkcs12_pbe_derive_key_iv( pbe_params, md_type, pwd, pwdlen,
key, keylen,
iv, cipher_info->iv_size ) ) != 0 )
{
return( ret );
}
mbedtls_cipher_init( &cipher_ctx );
if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, (mbedtls_operation_t) mode ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_set_iv( &cipher_ctx, iv, cipher_info->iv_size ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_reset( &cipher_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_update( &cipher_ctx, data, len,
output, &olen ) ) != 0 )
{
goto exit;
}
if( ( ret = mbedtls_cipher_finish( &cipher_ctx, output + olen, &olen ) ) != 0 )
ret = MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH;
exit:
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( iv, sizeof( iv ) );
mbedtls_cipher_free( &cipher_ctx );
return( ret );
}
#endif /* MBEDTLS_ASN1_PARSE_C */
static void pkcs12_fill_buffer( unsigned char *data, size_t data_len,
const unsigned char *filler, size_t fill_len )
{
unsigned char *p = data;
size_t use_len;
while( data_len > 0 )
{
use_len = ( data_len > fill_len ) ? fill_len : data_len;
memcpy( p, filler, use_len );
p += use_len;
data_len -= use_len;
}
}
int mbedtls_pkcs12_derivation( unsigned char *data, size_t datalen,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *salt, size_t saltlen,
mbedtls_md_type_t md_type, int id, int iterations )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned int j;
unsigned char diversifier[128];
unsigned char salt_block[128], pwd_block[128], hash_block[128];
unsigned char hash_output[MBEDTLS_MD_MAX_SIZE];
unsigned char *p;
unsigned char c;
size_t hlen, use_len, v, i;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
// This version only allows max of 64 bytes of password or salt
if( datalen > 128 || pwdlen > 64 || saltlen > 64 )
return( MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA );
md_info = mbedtls_md_info_from_type( md_type );
if( md_info == NULL )
return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE );
mbedtls_md_init( &md_ctx );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
return( ret );
hlen = mbedtls_md_get_size( md_info );
if( hlen <= 32 )
v = 64;
else
v = 128;
memset( diversifier, (unsigned char) id, v );
pkcs12_fill_buffer( salt_block, v, salt, saltlen );
pkcs12_fill_buffer( pwd_block, v, pwd, pwdlen );
p = data;
while( datalen > 0 )
{
// Calculate hash( diversifier || salt_block || pwd_block )
if( ( ret = mbedtls_md_starts( &md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, diversifier, v ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, salt_block, v ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, pwd_block, v ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_finish( &md_ctx, hash_output ) ) != 0 )
goto exit;
// Perform remaining ( iterations - 1 ) recursive hash calculations
for( i = 1; i < (size_t) iterations; i++ )
{
if( ( ret = mbedtls_md( md_info, hash_output, hlen, hash_output ) ) != 0 )
goto exit;
}
use_len = ( datalen > hlen ) ? hlen : datalen;
memcpy( p, hash_output, use_len );
datalen -= use_len;
p += use_len;
if( datalen == 0 )
break;
// Concatenating copies of hash_output into hash_block (B)
pkcs12_fill_buffer( hash_block, v, hash_output, hlen );
// B += 1
for( i = v; i > 0; i-- )
if( ++hash_block[i - 1] != 0 )
break;
// salt_block += B
c = 0;
for( i = v; i > 0; i-- )
{
j = salt_block[i - 1] + hash_block[i - 1] + c;
c = (unsigned char) (j >> 8);
salt_block[i - 1] = j & 0xFF;
}
// pwd_block += B
c = 0;
for( i = v; i > 0; i-- )
{
j = pwd_block[i - 1] + hash_block[i - 1] + c;
c = (unsigned char) (j >> 8);
pwd_block[i - 1] = j & 0xFF;
}
}
ret = 0;
exit:
mbedtls_platform_zeroize( salt_block, sizeof( salt_block ) );
mbedtls_platform_zeroize( pwd_block, sizeof( pwd_block ) );
mbedtls_platform_zeroize( hash_block, sizeof( hash_block ) );
mbedtls_platform_zeroize( hash_output, sizeof( hash_output ) );
mbedtls_md_free( &md_ctx );
return( ret );
}
#endif /* MBEDTLS_PKCS12_C */

View File

@@ -1,414 +0,0 @@
/**
* \file pkcs5.c
*
* \brief PKCS#5 functions
*
* \author Mathias Olsson <mathias@kompetensum.com>
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* PKCS#5 includes PBKDF2 and more
*
* http://tools.ietf.org/html/rfc2898 (Specification)
* http://tools.ietf.org/html/rfc6070 (Test vectors)
*/
#include "common.h"
#if defined(MBEDTLS_PKCS5_C)
#include "mbedtls/pkcs5.h"
#include "mbedtls/error.h"
#if defined(MBEDTLS_ASN1_PARSE_C)
#include "mbedtls/asn1.h"
#include "mbedtls/cipher.h"
#include "mbedtls/oid.h"
#endif /* MBEDTLS_ASN1_PARSE_C */
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
static int pkcs5_parse_pbkdf2_params( const mbedtls_asn1_buf *params,
mbedtls_asn1_buf *salt, int *iterations,
int *keylen, mbedtls_md_type_t *md_type )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_asn1_buf prf_alg_oid;
unsigned char *p = params->p;
const unsigned char *end = params->p + params->len;
if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
/*
* PBKDF2-params ::= SEQUENCE {
* salt OCTET STRING,
* iterationCount INTEGER,
* keyLength INTEGER OPTIONAL
* prf AlgorithmIdentifier DEFAULT algid-hmacWithSHA1
* }
*
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &salt->len,
MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
salt->p = p;
p += salt->len;
if( ( ret = mbedtls_asn1_get_int( &p, end, iterations ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
if( p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_int( &p, end, keylen ) ) != 0 )
{
if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
}
if( p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_alg_null( &p, end, &prf_alg_oid ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
if( mbedtls_oid_get_md_hmac( &prf_alg_oid, md_type ) != 0 )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
if( p != end )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t datalen,
unsigned char *output )
{
int ret, iterations = 0, keylen = 0;
unsigned char *p, *end;
mbedtls_asn1_buf kdf_alg_oid, enc_scheme_oid, kdf_alg_params, enc_scheme_params;
mbedtls_asn1_buf salt;
mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1;
unsigned char key[32], iv[32];
size_t olen = 0;
const mbedtls_md_info_t *md_info;
const mbedtls_cipher_info_t *cipher_info;
mbedtls_md_context_t md_ctx;
mbedtls_cipher_type_t cipher_alg;
mbedtls_cipher_context_t cipher_ctx;
p = pbe_params->p;
end = p + pbe_params->len;
/*
* PBES2-params ::= SEQUENCE {
* keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}},
* encryptionScheme AlgorithmIdentifier {{PBES2-Encs}}
* }
*/
if( pbe_params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
if( ( ret = mbedtls_asn1_get_alg( &p, end, &kdf_alg_oid,
&kdf_alg_params ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
// Only PBKDF2 supported at the moment
//
if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBKDF2, &kdf_alg_oid ) != 0 )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
if( ( ret = pkcs5_parse_pbkdf2_params( &kdf_alg_params,
&salt, &iterations, &keylen,
&md_type ) ) != 0 )
{
return( ret );
}
md_info = mbedtls_md_info_from_type( md_type );
if( md_info == NULL )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
if( ( ret = mbedtls_asn1_get_alg( &p, end, &enc_scheme_oid,
&enc_scheme_params ) ) != 0 )
{
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
}
if( mbedtls_oid_get_cipher_alg( &enc_scheme_oid, &cipher_alg ) != 0 )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
cipher_info = mbedtls_cipher_info_from_type( cipher_alg );
if( cipher_info == NULL )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
/*
* The value of keylen from pkcs5_parse_pbkdf2_params() is ignored
* since it is optional and we don't know if it was set or not
*/
keylen = cipher_info->key_bitlen / 8;
if( enc_scheme_params.tag != MBEDTLS_ASN1_OCTET_STRING ||
enc_scheme_params.len != cipher_info->iv_size )
{
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT );
}
mbedtls_md_init( &md_ctx );
mbedtls_cipher_init( &cipher_ctx );
memcpy( iv, enc_scheme_params.p, enc_scheme_params.len );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_pkcs5_pbkdf2_hmac( &md_ctx, pwd, pwdlen, salt.p, salt.len,
iterations, keylen, key ) ) != 0 )
{
goto exit;
}
if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen,
(mbedtls_operation_t) mode ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_crypt( &cipher_ctx, iv, enc_scheme_params.len,
data, datalen, output, &olen ) ) != 0 )
ret = MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH;
exit:
mbedtls_md_free( &md_ctx );
mbedtls_cipher_free( &cipher_ctx );
return( ret );
}
#endif /* MBEDTLS_ASN1_PARSE_C */
int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx,
const unsigned char *password,
size_t plen, const unsigned char *salt, size_t slen,
unsigned int iteration_count,
uint32_t key_length, unsigned char *output )
{
int ret, j;
unsigned int i;
unsigned char md1[MBEDTLS_MD_MAX_SIZE];
unsigned char work[MBEDTLS_MD_MAX_SIZE];
unsigned char md_size = mbedtls_md_get_size( ctx->md_info );
size_t use_len;
unsigned char *out_p = output;
unsigned char counter[4];
memset( counter, 0, 4 );
counter[3] = 1;
#if UINT_MAX > 0xFFFFFFFF
if( iteration_count > 0xFFFFFFFF )
return( MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA );
#endif
if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 )
return( ret );
while( key_length )
{
// U1 ends up in work
//
if( ( ret = mbedtls_md_hmac_update( ctx, salt, slen ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_update( ctx, counter, 4 ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_finish( ctx, work ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_reset( ctx ) ) != 0 )
return( ret );
memcpy( md1, work, md_size );
for( i = 1; i < iteration_count; i++ )
{
// U2 ends up in md1
//
if( ( ret = mbedtls_md_hmac_update( ctx, md1, md_size ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_finish( ctx, md1 ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_reset( ctx ) ) != 0 )
return( ret );
// U1 xor U2
//
for( j = 0; j < md_size; j++ )
work[j] ^= md1[j];
}
use_len = ( key_length < md_size ) ? key_length : md_size;
memcpy( out_p, work, use_len );
key_length -= (uint32_t) use_len;
out_p += use_len;
for( i = 4; i > 0; i-- )
if( ++counter[i - 1] != 0 )
break;
}
return( 0 );
}
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_SHA1_C)
int mbedtls_pkcs5_self_test( int verbose )
{
if( verbose != 0 )
mbedtls_printf( " PBKDF2 (SHA1): skipped\n\n" );
return( 0 );
}
#else
#define MAX_TESTS 6
static const size_t plen_test_data[MAX_TESTS] =
{ 8, 8, 8, 24, 9 };
static const unsigned char password_test_data[MAX_TESTS][32] =
{
"password",
"password",
"password",
"passwordPASSWORDpassword",
"pass\0word",
};
static const size_t slen_test_data[MAX_TESTS] =
{ 4, 4, 4, 36, 5 };
static const unsigned char salt_test_data[MAX_TESTS][40] =
{
"salt",
"salt",
"salt",
"saltSALTsaltSALTsaltSALTsaltSALTsalt",
"sa\0lt",
};
static const uint32_t it_cnt_test_data[MAX_TESTS] =
{ 1, 2, 4096, 4096, 4096 };
static const uint32_t key_len_test_data[MAX_TESTS] =
{ 20, 20, 20, 25, 16 };
static const unsigned char result_key_test_data[MAX_TESTS][32] =
{
{ 0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71,
0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06,
0x2f, 0xe0, 0x37, 0xa6 },
{ 0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c,
0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0,
0xd8, 0xde, 0x89, 0x57 },
{ 0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a,
0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0,
0x65, 0xa4, 0x29, 0xc1 },
{ 0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b,
0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a,
0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70,
0x38 },
{ 0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d,
0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3 },
};
int mbedtls_pkcs5_self_test( int verbose )
{
mbedtls_md_context_t sha1_ctx;
const mbedtls_md_info_t *info_sha1;
int ret, i;
unsigned char key[64];
mbedtls_md_init( &sha1_ctx );
info_sha1 = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
if( info_sha1 == NULL )
{
ret = 1;
goto exit;
}
if( ( ret = mbedtls_md_setup( &sha1_ctx, info_sha1, 1 ) ) != 0 )
{
ret = 1;
goto exit;
}
for( i = 0; i < MAX_TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " PBKDF2 (SHA1) #%d: ", i );
ret = mbedtls_pkcs5_pbkdf2_hmac( &sha1_ctx, password_test_data[i],
plen_test_data[i], salt_test_data[i],
slen_test_data[i], it_cnt_test_data[i],
key_len_test_data[i], key );
if( ret != 0 ||
memcmp( result_key_test_data[i], key, key_len_test_data[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_md_free( &sha1_ctx );
return( ret );
}
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PKCS5_C */

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File diff suppressed because it is too large Load Diff

View File

@@ -1,623 +0,0 @@
/*
* Public Key layer for writing key files and structures
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_PK_WRITE_C)
#include "mbedtls/pk.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/bignum.h"
#include "mbedtls/ecp.h"
#include "mbedtls/platform_util.h"
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#endif
#if defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
#include "psa/crypto.h"
#include "mbedtls/psa_util.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
/* Parameter validation macros based on platform_util.h */
#define PK_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA )
#define PK_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_RSA_C)
/*
* RSAPublicKey ::= SEQUENCE {
* modulus INTEGER, -- n
* publicExponent INTEGER -- e
* }
*/
static int pk_write_rsa_pubkey( unsigned char **p, unsigned char *start,
mbedtls_rsa_context *rsa )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
mbedtls_mpi T;
mbedtls_mpi_init( &T );
/* Export E */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL, NULL, NULL, &T ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( p, start, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export N */
if ( ( ret = mbedtls_rsa_export( rsa, &T, NULL, NULL, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( p, start, &T ) ) < 0 )
goto end_of_export;
len += ret;
end_of_export:
mbedtls_mpi_free( &T );
if( ret < 0 )
return( ret );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/*
* EC public key is an EC point
*/
static int pk_write_ec_pubkey( unsigned char **p, unsigned char *start,
mbedtls_ecp_keypair *ec )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
unsigned char buf[MBEDTLS_ECP_MAX_PT_LEN];
if( ( ret = mbedtls_ecp_point_write_binary( &ec->grp, &ec->Q,
MBEDTLS_ECP_PF_UNCOMPRESSED,
&len, buf, sizeof( buf ) ) ) != 0 )
{
return( ret );
}
if( *p < start || (size_t)( *p - start ) < len )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*p -= len;
memcpy( *p, buf, len );
return( (int) len );
}
/*
* ECParameters ::= CHOICE {
* namedCurve OBJECT IDENTIFIER
* }
*/
static int pk_write_ec_param( unsigned char **p, unsigned char *start,
mbedtls_ecp_keypair *ec )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
const char *oid;
size_t oid_len;
if( ( ret = mbedtls_oid_get_oid_by_ec_grp( ec->grp.id, &oid, &oid_len ) ) != 0 )
return( ret );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) );
return( (int) len );
}
/*
* privateKey OCTET STRING -- always of length ceil(log2(n)/8)
*/
static int pk_write_ec_private( unsigned char **p, unsigned char *start,
mbedtls_ecp_keypair *ec )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t byte_length = ( ec->grp.pbits + 7 ) / 8;
unsigned char tmp[MBEDTLS_ECP_MAX_BYTES];
ret = mbedtls_ecp_write_key( ec, tmp, byte_length );
if( ret != 0 )
goto exit;
ret = mbedtls_asn1_write_octet_string( p, start, tmp, byte_length );
exit:
mbedtls_platform_zeroize( tmp, byte_length );
return( ret );
}
#endif /* MBEDTLS_ECP_C */
int mbedtls_pk_write_pubkey( unsigned char **p, unsigned char *start,
const mbedtls_pk_context *key )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
PK_VALIDATE_RET( p != NULL );
PK_VALIDATE_RET( *p != NULL );
PK_VALIDATE_RET( start != NULL );
PK_VALIDATE_RET( key != NULL );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA )
MBEDTLS_ASN1_CHK_ADD( len, pk_write_rsa_pubkey( p, start, mbedtls_pk_rsa( *key ) ) );
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
MBEDTLS_ASN1_CHK_ADD( len, pk_write_ec_pubkey( p, start, mbedtls_pk_ec( *key ) ) );
else
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_OPAQUE )
{
size_t buffer_size;
psa_key_handle_t* key_slot = (psa_key_handle_t*) key->pk_ctx;
if ( *p < start )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
buffer_size = (size_t)( *p - start );
if ( psa_export_public_key( *key_slot, start, buffer_size, &len )
!= PSA_SUCCESS )
{
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
}
else
{
*p -= len;
memmove( *p, start, len );
}
}
else
#endif /* MBEDTLS_USE_PSA_CRYPTO */
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
return( (int) len );
}
int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *c;
size_t len = 0, par_len = 0, oid_len;
mbedtls_pk_type_t pk_type;
const char *oid;
PK_VALIDATE_RET( key != NULL );
if( size == 0 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
PK_VALIDATE_RET( buf != NULL );
c = buf + size;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, key ) );
if( c - buf < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
/*
* SubjectPublicKeyInfo ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* subjectPublicKey BIT STRING }
*/
*--c = 0;
len += 1;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) );
pk_type = mbedtls_pk_get_type( key );
#if defined(MBEDTLS_ECP_C)
if( pk_type == MBEDTLS_PK_ECKEY )
{
MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, mbedtls_pk_ec( *key ) ) );
}
#endif
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if( pk_type == MBEDTLS_PK_OPAQUE )
{
psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t key_type;
psa_key_handle_t handle;
psa_ecc_family_t curve;
size_t bits;
handle = *((psa_key_handle_t*) key->pk_ctx );
if( PSA_SUCCESS != psa_get_key_attributes( handle, &attributes ) )
return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
key_type = psa_get_key_type( &attributes );
bits = psa_get_key_bits( &attributes );
psa_reset_key_attributes( &attributes );
curve = PSA_KEY_TYPE_ECC_GET_FAMILY( key_type );
if( curve == 0 )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
ret = mbedtls_psa_get_ecc_oid_from_id( curve, bits, &oid, &oid_len );
if( ret != 0 )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
/* Write EC algorithm parameters; that's akin
* to pk_write_ec_param() above. */
MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_oid( &c, buf,
oid, oid_len ) );
/* The rest of the function works as for legacy EC contexts. */
pk_type = MBEDTLS_PK_ECKEY;
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( ( ret = mbedtls_oid_get_oid_by_pk_alg( pk_type, &oid,
&oid_len ) ) != 0 )
{
return( ret );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, buf, oid, oid_len,
par_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *c;
size_t len = 0;
PK_VALIDATE_RET( key != NULL );
if( size == 0 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
PK_VALIDATE_RET( buf != NULL );
c = buf + size;
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA )
{
mbedtls_mpi T; /* Temporary holding the exported parameters */
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( *key );
/*
* Export the parameters one after another to avoid simultaneous copies.
*/
mbedtls_mpi_init( &T );
/* Export QP */
if( ( ret = mbedtls_rsa_export_crt( rsa, NULL, NULL, &T ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export DQ */
if( ( ret = mbedtls_rsa_export_crt( rsa, NULL, &T, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export DP */
if( ( ret = mbedtls_rsa_export_crt( rsa, &T, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export Q */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL,
&T, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export P */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, &T,
NULL, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export D */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL,
NULL, &T, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export E */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL,
NULL, NULL, &T ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export N */
if ( ( ret = mbedtls_rsa_export( rsa, &T, NULL,
NULL, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
end_of_export:
mbedtls_mpi_free( &T );
if( ret < 0 )
return( ret );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c,
buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
}
else
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ec = mbedtls_pk_ec( *key );
size_t pub_len = 0, par_len = 0;
/*
* RFC 5915, or SEC1 Appendix C.4
*
* ECPrivateKey ::= SEQUENCE {
* version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
* privateKey OCTET STRING,
* parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
* publicKey [1] BIT STRING OPTIONAL
* }
*/
/* publicKey */
MBEDTLS_ASN1_CHK_ADD( pub_len, pk_write_ec_pubkey( &c, buf, ec ) );
if( c - buf < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--c = 0;
pub_len += 1;
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) );
len += pub_len;
/* parameters */
MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, ec ) );
MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_len( &c, buf, par_len ) );
MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
len += par_len;
/* privateKey */
MBEDTLS_ASN1_CHK_ADD( len, pk_write_ec_private( &c, buf, ec ) );
/* version */
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
}
else
#endif /* MBEDTLS_ECP_C */
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
return( (int) len );
}
#if defined(MBEDTLS_PEM_WRITE_C)
#define PEM_BEGIN_PUBLIC_KEY "-----BEGIN PUBLIC KEY-----\n"
#define PEM_END_PUBLIC_KEY "-----END PUBLIC KEY-----\n"
#define PEM_BEGIN_PRIVATE_KEY_RSA "-----BEGIN RSA PRIVATE KEY-----\n"
#define PEM_END_PRIVATE_KEY_RSA "-----END RSA PRIVATE KEY-----\n"
#define PEM_BEGIN_PRIVATE_KEY_EC "-----BEGIN EC PRIVATE KEY-----\n"
#define PEM_END_PRIVATE_KEY_EC "-----END EC PRIVATE KEY-----\n"
/*
* Max sizes of key per types. Shown as tag + len (+ content).
*/
#if defined(MBEDTLS_RSA_C)
/*
* RSA public keys:
* SubjectPublicKeyInfo ::= SEQUENCE { 1 + 3
* algorithm AlgorithmIdentifier, 1 + 1 (sequence)
* + 1 + 1 + 9 (rsa oid)
* + 1 + 1 (params null)
* subjectPublicKey BIT STRING } 1 + 3 + (1 + below)
* RSAPublicKey ::= SEQUENCE { 1 + 3
* modulus INTEGER, -- n 1 + 3 + MPI_MAX + 1
* publicExponent INTEGER -- e 1 + 3 + MPI_MAX + 1
* }
*/
#define RSA_PUB_DER_MAX_BYTES 38 + 2 * MBEDTLS_MPI_MAX_SIZE
/*
* RSA private keys:
* RSAPrivateKey ::= SEQUENCE { 1 + 3
* version Version, 1 + 1 + 1
* modulus INTEGER, 1 + 3 + MPI_MAX + 1
* publicExponent INTEGER, 1 + 3 + MPI_MAX + 1
* privateExponent INTEGER, 1 + 3 + MPI_MAX + 1
* prime1 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* prime2 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* exponent1 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* exponent2 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* coefficient INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* otherPrimeInfos OtherPrimeInfos OPTIONAL 0 (not supported)
* }
*/
#define MPI_MAX_SIZE_2 MBEDTLS_MPI_MAX_SIZE / 2 + \
MBEDTLS_MPI_MAX_SIZE % 2
#define RSA_PRV_DER_MAX_BYTES 47 + 3 * MBEDTLS_MPI_MAX_SIZE \
+ 5 * MPI_MAX_SIZE_2
#else /* MBEDTLS_RSA_C */
#define RSA_PUB_DER_MAX_BYTES 0
#define RSA_PRV_DER_MAX_BYTES 0
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/*
* EC public keys:
* SubjectPublicKeyInfo ::= SEQUENCE { 1 + 2
* algorithm AlgorithmIdentifier, 1 + 1 (sequence)
* + 1 + 1 + 7 (ec oid)
* + 1 + 1 + 9 (namedCurve oid)
* subjectPublicKey BIT STRING 1 + 2 + 1 [1]
* + 1 (point format) [1]
* + 2 * ECP_MAX (coords) [1]
* }
*/
#define ECP_PUB_DER_MAX_BYTES 30 + 2 * MBEDTLS_ECP_MAX_BYTES
/*
* EC private keys:
* ECPrivateKey ::= SEQUENCE { 1 + 2
* version INTEGER , 1 + 1 + 1
* privateKey OCTET STRING, 1 + 1 + ECP_MAX
* parameters [0] ECParameters OPTIONAL, 1 + 1 + (1 + 1 + 9)
* publicKey [1] BIT STRING OPTIONAL 1 + 2 + [1] above
* }
*/
#define ECP_PRV_DER_MAX_BYTES 29 + 3 * MBEDTLS_ECP_MAX_BYTES
#else /* MBEDTLS_ECP_C */
#define ECP_PUB_DER_MAX_BYTES 0
#define ECP_PRV_DER_MAX_BYTES 0
#endif /* MBEDTLS_ECP_C */
#define PUB_DER_MAX_BYTES RSA_PUB_DER_MAX_BYTES > ECP_PUB_DER_MAX_BYTES ? \
RSA_PUB_DER_MAX_BYTES : ECP_PUB_DER_MAX_BYTES
#define PRV_DER_MAX_BYTES RSA_PRV_DER_MAX_BYTES > ECP_PRV_DER_MAX_BYTES ? \
RSA_PRV_DER_MAX_BYTES : ECP_PRV_DER_MAX_BYTES
int mbedtls_pk_write_pubkey_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char output_buf[PUB_DER_MAX_BYTES];
size_t olen = 0;
PK_VALIDATE_RET( key != NULL );
PK_VALIDATE_RET( buf != NULL || size == 0 );
if( ( ret = mbedtls_pk_write_pubkey_der( key, output_buf,
sizeof(output_buf) ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_PUBLIC_KEY, PEM_END_PUBLIC_KEY,
output_buf + sizeof(output_buf) - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
int mbedtls_pk_write_key_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char output_buf[PRV_DER_MAX_BYTES];
const char *begin, *end;
size_t olen = 0;
PK_VALIDATE_RET( key != NULL );
PK_VALIDATE_RET( buf != NULL || size == 0 );
if( ( ret = mbedtls_pk_write_key_der( key, output_buf, sizeof(output_buf) ) ) < 0 )
return( ret );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA )
{
begin = PEM_BEGIN_PRIVATE_KEY_RSA;
end = PEM_END_PRIVATE_KEY_RSA;
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
{
begin = PEM_BEGIN_PRIVATE_KEY_EC;
end = PEM_END_PRIVATE_KEY_EC;
}
else
#endif
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
if( ( ret = mbedtls_pem_write_buffer( begin, end,
output_buf + sizeof(output_buf) - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_PK_WRITE_C */

View File

@@ -1,557 +0,0 @@
/**
* \file poly1305.c
*
* \brief Poly1305 authentication algorithm.
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_POLY1305_C)
#include "mbedtls/poly1305.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_POLY1305_ALT)
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
/* Parameter validation macros */
#define POLY1305_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA )
#define POLY1305_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#define POLY1305_BLOCK_SIZE_BYTES ( 16U )
#define BYTES_TO_U32_LE( data, offset ) \
( (uint32_t) (data)[offset] \
| (uint32_t) ( (uint32_t) (data)[( offset ) + 1] << 8 ) \
| (uint32_t) ( (uint32_t) (data)[( offset ) + 2] << 16 ) \
| (uint32_t) ( (uint32_t) (data)[( offset ) + 3] << 24 ) \
)
/*
* Our implementation is tuned for 32-bit platforms with a 64-bit multiplier.
* However we provided an alternative for platforms without such a multiplier.
*/
#if defined(MBEDTLS_NO_64BIT_MULTIPLICATION)
static uint64_t mul64( uint32_t a, uint32_t b )
{
/* a = al + 2**16 ah, b = bl + 2**16 bh */
const uint16_t al = (uint16_t) a;
const uint16_t bl = (uint16_t) b;
const uint16_t ah = a >> 16;
const uint16_t bh = b >> 16;
/* ab = al*bl + 2**16 (ah*bl + bl*bh) + 2**32 ah*bh */
const uint32_t lo = (uint32_t) al * bl;
const uint64_t me = (uint64_t)( (uint32_t) ah * bl ) + (uint32_t) al * bh;
const uint32_t hi = (uint32_t) ah * bh;
return( lo + ( me << 16 ) + ( (uint64_t) hi << 32 ) );
}
#else
static inline uint64_t mul64( uint32_t a, uint32_t b )
{
return( (uint64_t) a * b );
}
#endif
/**
* \brief Process blocks with Poly1305.
*
* \param ctx The Poly1305 context.
* \param nblocks Number of blocks to process. Note that this
* function only processes full blocks.
* \param input Buffer containing the input block(s).
* \param needs_padding Set to 0 if the padding bit has already been
* applied to the input data before calling this
* function. Otherwise, set this parameter to 1.
*/
static void poly1305_process( mbedtls_poly1305_context *ctx,
size_t nblocks,
const unsigned char *input,
uint32_t needs_padding )
{
uint64_t d0, d1, d2, d3;
uint32_t acc0, acc1, acc2, acc3, acc4;
uint32_t r0, r1, r2, r3;
uint32_t rs1, rs2, rs3;
size_t offset = 0U;
size_t i;
r0 = ctx->r[0];
r1 = ctx->r[1];
r2 = ctx->r[2];
r3 = ctx->r[3];
rs1 = r1 + ( r1 >> 2U );
rs2 = r2 + ( r2 >> 2U );
rs3 = r3 + ( r3 >> 2U );
acc0 = ctx->acc[0];
acc1 = ctx->acc[1];
acc2 = ctx->acc[2];
acc3 = ctx->acc[3];
acc4 = ctx->acc[4];
/* Process full blocks */
for( i = 0U; i < nblocks; i++ )
{
/* The input block is treated as a 128-bit little-endian integer */
d0 = BYTES_TO_U32_LE( input, offset + 0 );
d1 = BYTES_TO_U32_LE( input, offset + 4 );
d2 = BYTES_TO_U32_LE( input, offset + 8 );
d3 = BYTES_TO_U32_LE( input, offset + 12 );
/* Compute: acc += (padded) block as a 130-bit integer */
d0 += (uint64_t) acc0;
d1 += (uint64_t) acc1 + ( d0 >> 32U );
d2 += (uint64_t) acc2 + ( d1 >> 32U );
d3 += (uint64_t) acc3 + ( d2 >> 32U );
acc0 = (uint32_t) d0;
acc1 = (uint32_t) d1;
acc2 = (uint32_t) d2;
acc3 = (uint32_t) d3;
acc4 += (uint32_t) ( d3 >> 32U ) + needs_padding;
/* Compute: acc *= r */
d0 = mul64( acc0, r0 ) +
mul64( acc1, rs3 ) +
mul64( acc2, rs2 ) +
mul64( acc3, rs1 );
d1 = mul64( acc0, r1 ) +
mul64( acc1, r0 ) +
mul64( acc2, rs3 ) +
mul64( acc3, rs2 ) +
mul64( acc4, rs1 );
d2 = mul64( acc0, r2 ) +
mul64( acc1, r1 ) +
mul64( acc2, r0 ) +
mul64( acc3, rs3 ) +
mul64( acc4, rs2 );
d3 = mul64( acc0, r3 ) +
mul64( acc1, r2 ) +
mul64( acc2, r1 ) +
mul64( acc3, r0 ) +
mul64( acc4, rs3 );
acc4 *= r0;
/* Compute: acc %= (2^130 - 5) (partial remainder) */
d1 += ( d0 >> 32 );
d2 += ( d1 >> 32 );
d3 += ( d2 >> 32 );
acc0 = (uint32_t) d0;
acc1 = (uint32_t) d1;
acc2 = (uint32_t) d2;
acc3 = (uint32_t) d3;
acc4 = (uint32_t) ( d3 >> 32 ) + acc4;
d0 = (uint64_t) acc0 + ( acc4 >> 2 ) + ( acc4 & 0xFFFFFFFCU );
acc4 &= 3U;
acc0 = (uint32_t) d0;
d0 = (uint64_t) acc1 + ( d0 >> 32U );
acc1 = (uint32_t) d0;
d0 = (uint64_t) acc2 + ( d0 >> 32U );
acc2 = (uint32_t) d0;
d0 = (uint64_t) acc3 + ( d0 >> 32U );
acc3 = (uint32_t) d0;
d0 = (uint64_t) acc4 + ( d0 >> 32U );
acc4 = (uint32_t) d0;
offset += POLY1305_BLOCK_SIZE_BYTES;
}
ctx->acc[0] = acc0;
ctx->acc[1] = acc1;
ctx->acc[2] = acc2;
ctx->acc[3] = acc3;
ctx->acc[4] = acc4;
}
/**
* \brief Compute the Poly1305 MAC
*
* \param ctx The Poly1305 context.
* \param mac The buffer to where the MAC is written. Must be
* big enough to contain the 16-byte MAC.
*/
static void poly1305_compute_mac( const mbedtls_poly1305_context *ctx,
unsigned char mac[16] )
{
uint64_t d;
uint32_t g0, g1, g2, g3, g4;
uint32_t acc0, acc1, acc2, acc3, acc4;
uint32_t mask;
uint32_t mask_inv;
acc0 = ctx->acc[0];
acc1 = ctx->acc[1];
acc2 = ctx->acc[2];
acc3 = ctx->acc[3];
acc4 = ctx->acc[4];
/* Before adding 's' we ensure that the accumulator is mod 2^130 - 5.
* We do this by calculating acc - (2^130 - 5), then checking if
* the 131st bit is set. If it is, then reduce: acc -= (2^130 - 5)
*/
/* Calculate acc + -(2^130 - 5) */
d = ( (uint64_t) acc0 + 5U );
g0 = (uint32_t) d;
d = ( (uint64_t) acc1 + ( d >> 32 ) );
g1 = (uint32_t) d;
d = ( (uint64_t) acc2 + ( d >> 32 ) );
g2 = (uint32_t) d;
d = ( (uint64_t) acc3 + ( d >> 32 ) );
g3 = (uint32_t) d;
g4 = acc4 + (uint32_t) ( d >> 32U );
/* mask == 0xFFFFFFFF if 131st bit is set, otherwise mask == 0 */
mask = (uint32_t) 0U - ( g4 >> 2U );
mask_inv = ~mask;
/* If 131st bit is set then acc=g, otherwise, acc is unmodified */
acc0 = ( acc0 & mask_inv ) | ( g0 & mask );
acc1 = ( acc1 & mask_inv ) | ( g1 & mask );
acc2 = ( acc2 & mask_inv ) | ( g2 & mask );
acc3 = ( acc3 & mask_inv ) | ( g3 & mask );
/* Add 's' */
d = (uint64_t) acc0 + ctx->s[0];
acc0 = (uint32_t) d;
d = (uint64_t) acc1 + ctx->s[1] + ( d >> 32U );
acc1 = (uint32_t) d;
d = (uint64_t) acc2 + ctx->s[2] + ( d >> 32U );
acc2 = (uint32_t) d;
acc3 += ctx->s[3] + (uint32_t) ( d >> 32U );
/* Compute MAC (128 least significant bits of the accumulator) */
mac[ 0] = (unsigned char)( acc0 );
mac[ 1] = (unsigned char)( acc0 >> 8 );
mac[ 2] = (unsigned char)( acc0 >> 16 );
mac[ 3] = (unsigned char)( acc0 >> 24 );
mac[ 4] = (unsigned char)( acc1 );
mac[ 5] = (unsigned char)( acc1 >> 8 );
mac[ 6] = (unsigned char)( acc1 >> 16 );
mac[ 7] = (unsigned char)( acc1 >> 24 );
mac[ 8] = (unsigned char)( acc2 );
mac[ 9] = (unsigned char)( acc2 >> 8 );
mac[10] = (unsigned char)( acc2 >> 16 );
mac[11] = (unsigned char)( acc2 >> 24 );
mac[12] = (unsigned char)( acc3 );
mac[13] = (unsigned char)( acc3 >> 8 );
mac[14] = (unsigned char)( acc3 >> 16 );
mac[15] = (unsigned char)( acc3 >> 24 );
}
void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx )
{
POLY1305_VALIDATE( ctx != NULL );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_poly1305_context ) );
}
void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_poly1305_context ) );
}
int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
const unsigned char key[32] )
{
POLY1305_VALIDATE_RET( ctx != NULL );
POLY1305_VALIDATE_RET( key != NULL );
/* r &= 0x0ffffffc0ffffffc0ffffffc0fffffff */
ctx->r[0] = BYTES_TO_U32_LE( key, 0 ) & 0x0FFFFFFFU;
ctx->r[1] = BYTES_TO_U32_LE( key, 4 ) & 0x0FFFFFFCU;
ctx->r[2] = BYTES_TO_U32_LE( key, 8 ) & 0x0FFFFFFCU;
ctx->r[3] = BYTES_TO_U32_LE( key, 12 ) & 0x0FFFFFFCU;
ctx->s[0] = BYTES_TO_U32_LE( key, 16 );
ctx->s[1] = BYTES_TO_U32_LE( key, 20 );
ctx->s[2] = BYTES_TO_U32_LE( key, 24 );
ctx->s[3] = BYTES_TO_U32_LE( key, 28 );
/* Initial accumulator state */
ctx->acc[0] = 0U;
ctx->acc[1] = 0U;
ctx->acc[2] = 0U;
ctx->acc[3] = 0U;
ctx->acc[4] = 0U;
/* Queue initially empty */
mbedtls_platform_zeroize( ctx->queue, sizeof( ctx->queue ) );
ctx->queue_len = 0U;
return( 0 );
}
int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
const unsigned char *input,
size_t ilen )
{
size_t offset = 0U;
size_t remaining = ilen;
size_t queue_free_len;
size_t nblocks;
POLY1305_VALIDATE_RET( ctx != NULL );
POLY1305_VALIDATE_RET( ilen == 0 || input != NULL );
if( ( remaining > 0U ) && ( ctx->queue_len > 0U ) )
{
queue_free_len = ( POLY1305_BLOCK_SIZE_BYTES - ctx->queue_len );
if( ilen < queue_free_len )
{
/* Not enough data to complete the block.
* Store this data with the other leftovers.
*/
memcpy( &ctx->queue[ctx->queue_len],
input,
ilen );
ctx->queue_len += ilen;
remaining = 0U;
}
else
{
/* Enough data to produce a complete block */
memcpy( &ctx->queue[ctx->queue_len],
input,
queue_free_len );
ctx->queue_len = 0U;
poly1305_process( ctx, 1U, ctx->queue, 1U ); /* add padding bit */
offset += queue_free_len;
remaining -= queue_free_len;
}
}
if( remaining >= POLY1305_BLOCK_SIZE_BYTES )
{
nblocks = remaining / POLY1305_BLOCK_SIZE_BYTES;
poly1305_process( ctx, nblocks, &input[offset], 1U );
offset += nblocks * POLY1305_BLOCK_SIZE_BYTES;
remaining %= POLY1305_BLOCK_SIZE_BYTES;
}
if( remaining > 0U )
{
/* Store partial block */
ctx->queue_len = remaining;
memcpy( ctx->queue, &input[offset], remaining );
}
return( 0 );
}
int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
unsigned char mac[16] )
{
POLY1305_VALIDATE_RET( ctx != NULL );
POLY1305_VALIDATE_RET( mac != NULL );
/* Process any leftover data */
if( ctx->queue_len > 0U )
{
/* Add padding bit */
ctx->queue[ctx->queue_len] = 1U;
ctx->queue_len++;
/* Pad with zeroes */
memset( &ctx->queue[ctx->queue_len],
0,
POLY1305_BLOCK_SIZE_BYTES - ctx->queue_len );
poly1305_process( ctx, 1U, /* Process 1 block */
ctx->queue, 0U ); /* Already padded above */
}
poly1305_compute_mac( ctx, mac );
return( 0 );
}
int mbedtls_poly1305_mac( const unsigned char key[32],
const unsigned char *input,
size_t ilen,
unsigned char mac[16] )
{
mbedtls_poly1305_context ctx;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
POLY1305_VALIDATE_RET( key != NULL );
POLY1305_VALIDATE_RET( mac != NULL );
POLY1305_VALIDATE_RET( ilen == 0 || input != NULL );
mbedtls_poly1305_init( &ctx );
ret = mbedtls_poly1305_starts( &ctx, key );
if( ret != 0 )
goto cleanup;
ret = mbedtls_poly1305_update( &ctx, input, ilen );
if( ret != 0 )
goto cleanup;
ret = mbedtls_poly1305_finish( &ctx, mac );
cleanup:
mbedtls_poly1305_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_POLY1305_ALT */
#if defined(MBEDTLS_SELF_TEST)
static const unsigned char test_keys[2][32] =
{
{
0x85, 0xd6, 0xbe, 0x78, 0x57, 0x55, 0x6d, 0x33,
0x7f, 0x44, 0x52, 0xfe, 0x42, 0xd5, 0x06, 0xa8,
0x01, 0x03, 0x80, 0x8a, 0xfb, 0x0d, 0xb2, 0xfd,
0x4a, 0xbf, 0xf6, 0xaf, 0x41, 0x49, 0xf5, 0x1b
},
{
0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a,
0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09,
0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
}
};
static const unsigned char test_data[2][127] =
{
{
0x43, 0x72, 0x79, 0x70, 0x74, 0x6f, 0x67, 0x72,
0x61, 0x70, 0x68, 0x69, 0x63, 0x20, 0x46, 0x6f,
0x72, 0x75, 0x6d, 0x20, 0x52, 0x65, 0x73, 0x65,
0x61, 0x72, 0x63, 0x68, 0x20, 0x47, 0x72, 0x6f,
0x75, 0x70
},
{
0x27, 0x54, 0x77, 0x61, 0x73, 0x20, 0x62, 0x72,
0x69, 0x6c, 0x6c, 0x69, 0x67, 0x2c, 0x20, 0x61,
0x6e, 0x64, 0x20, 0x74, 0x68, 0x65, 0x20, 0x73,
0x6c, 0x69, 0x74, 0x68, 0x79, 0x20, 0x74, 0x6f,
0x76, 0x65, 0x73, 0x0a, 0x44, 0x69, 0x64, 0x20,
0x67, 0x79, 0x72, 0x65, 0x20, 0x61, 0x6e, 0x64,
0x20, 0x67, 0x69, 0x6d, 0x62, 0x6c, 0x65, 0x20,
0x69, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x77,
0x61, 0x62, 0x65, 0x3a, 0x0a, 0x41, 0x6c, 0x6c,
0x20, 0x6d, 0x69, 0x6d, 0x73, 0x79, 0x20, 0x77,
0x65, 0x72, 0x65, 0x20, 0x74, 0x68, 0x65, 0x20,
0x62, 0x6f, 0x72, 0x6f, 0x67, 0x6f, 0x76, 0x65,
0x73, 0x2c, 0x0a, 0x41, 0x6e, 0x64, 0x20, 0x74,
0x68, 0x65, 0x20, 0x6d, 0x6f, 0x6d, 0x65, 0x20,
0x72, 0x61, 0x74, 0x68, 0x73, 0x20, 0x6f, 0x75,
0x74, 0x67, 0x72, 0x61, 0x62, 0x65, 0x2e
}
};
static const size_t test_data_len[2] =
{
34U,
127U
};
static const unsigned char test_mac[2][16] =
{
{
0xa8, 0x06, 0x1d, 0xc1, 0x30, 0x51, 0x36, 0xc6,
0xc2, 0x2b, 0x8b, 0xaf, 0x0c, 0x01, 0x27, 0xa9
},
{
0x45, 0x41, 0x66, 0x9a, 0x7e, 0xaa, 0xee, 0x61,
0xe7, 0x08, 0xdc, 0x7c, 0xbc, 0xc5, 0xeb, 0x62
}
};
/* Make sure no other definition is already present. */
#undef ASSERT
#define ASSERT( cond, args ) \
do \
{ \
if( ! ( cond ) ) \
{ \
if( verbose != 0 ) \
mbedtls_printf args; \
\
return( -1 ); \
} \
} \
while( 0 )
int mbedtls_poly1305_self_test( int verbose )
{
unsigned char mac[16];
unsigned i;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
for( i = 0U; i < 2U; i++ )
{
if( verbose != 0 )
mbedtls_printf( " Poly1305 test %u ", i );
ret = mbedtls_poly1305_mac( test_keys[i],
test_data[i],
test_data_len[i],
mac );
ASSERT( 0 == ret, ( "error code: %i\n", ret ) );
ASSERT( 0 == memcmp( mac, test_mac[i], 16U ), ( "failed (mac)\n" ) );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_POLY1305_C */

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@@ -1,164 +0,0 @@
/*
* PSA crypto core internal interfaces
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_CORE_H
#define PSA_CRYPTO_CORE_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "psa/crypto.h"
#include "psa/crypto_se_driver.h"
/** The data structure representing a key slot, containing key material
* and metadata for one key.
*/
typedef struct
{
psa_core_key_attributes_t attr;
union
{
/* Dynamically allocated key data buffer.
* Format as specified in psa_export_key(). */
struct key_data
{
uint8_t *data;
size_t bytes;
} key;
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
/* Any key type in a secure element */
struct se
{
psa_key_slot_number_t slot_number;
} se;
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
} data;
} psa_key_slot_t;
/* A mask of key attribute flags used only internally.
* Currently there aren't any. */
#define PSA_KA_MASK_INTERNAL_ONLY ( \
0 )
/** Test whether a key slot is occupied.
*
* A key slot is occupied iff the key type is nonzero. This works because
* no valid key can have 0 as its key type.
*
* \param[in] slot The key slot to test.
*
* \return 1 if the slot is occupied, 0 otherwise.
*/
static inline int psa_is_key_slot_occupied( const psa_key_slot_t *slot )
{
return( slot->attr.type != 0 );
}
/** Retrieve flags from psa_key_slot_t::attr::core::flags.
*
* \param[in] slot The key slot to query.
* \param mask The mask of bits to extract.
*
* \return The key attribute flags in the given slot,
* bitwise-anded with \p mask.
*/
static inline uint16_t psa_key_slot_get_flags( const psa_key_slot_t *slot,
uint16_t mask )
{
return( slot->attr.flags & mask );
}
/** Set flags in psa_key_slot_t::attr::core::flags.
*
* \param[in,out] slot The key slot to modify.
* \param mask The mask of bits to modify.
* \param value The new value of the selected bits.
*/
static inline void psa_key_slot_set_flags( psa_key_slot_t *slot,
uint16_t mask,
uint16_t value )
{
slot->attr.flags = ( ( ~mask & slot->attr.flags ) |
( mask & value ) );
}
/** Turn on flags in psa_key_slot_t::attr::core::flags.
*
* \param[in,out] slot The key slot to modify.
* \param mask The mask of bits to set.
*/
static inline void psa_key_slot_set_bits_in_flags( psa_key_slot_t *slot,
uint16_t mask )
{
slot->attr.flags |= mask;
}
/** Turn off flags in psa_key_slot_t::attr::core::flags.
*
* \param[in,out] slot The key slot to modify.
* \param mask The mask of bits to clear.
*/
static inline void psa_key_slot_clear_bits( psa_key_slot_t *slot,
uint16_t mask )
{
slot->attr.flags &= ~mask;
}
/** Completely wipe a slot in memory, including its policy.
*
* Persistent storage is not affected.
*
* \param[in,out] slot The key slot to wipe.
*
* \retval PSA_SUCCESS
* Success. This includes the case of a key slot that was
* already fully wiped.
* \retval PSA_ERROR_CORRUPTION_DETECTED
*/
psa_status_t psa_wipe_key_slot( psa_key_slot_t *slot );
/** Import key data into a slot.
*
* `slot->type` must have been set previously.
* This function assumes that the slot does not contain any key material yet.
* On failure, the slot content is unchanged.
*
* Persistent storage is not affected.
*
* \param[in,out] slot The key slot to import data into.
* Its `type` field must have previously been set to
* the desired key type.
* It must not contain any key material yet.
* \param[in] data Buffer containing the key material to parse and import.
* \param data_length Size of \p data in bytes.
*
* \retval PSA_SUCCESS
* \retval PSA_ERROR_INVALID_ARGUMENT
* \retval PSA_ERROR_NOT_SUPPORTED
* \retval PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t psa_import_key_into_slot( psa_key_slot_t *slot,
const uint8_t *data,
size_t data_length );
#endif /* PSA_CRYPTO_CORE_H */

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@@ -1,39 +0,0 @@
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_SERVICE_INTEGRATION_H
#define PSA_CRYPTO_SERVICE_INTEGRATION_H
/*
* When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is being built for SPM
* (Secure Partition Manager) integration which separates the code into two
* parts: NSPE (Non-Secure Processing Environment) and SPE (Secure Processing
* Environment). When building for the SPE, an additional header file should be
* included.
*/
#if defined(MBEDTLS_PSA_CRYPTO_SPM)
/*
* PSA_CRYPTO_SECURE means that the file which included this file is being
* compiled for SPE. The files crypto_structs.h and crypto_types.h have
* different implementations for NSPE and SPE and are compiled according to this
* flag.
*/
#define PSA_CRYPTO_SECURE 1
#include "crypto_spe.h"
#endif // MBEDTLS_PSA_CRYPTO_SPM
#endif // PSA_CRYPTO_SERVICE_INTEGRATION_H

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@@ -1,309 +0,0 @@
/*
* PSA crypto layer on top of Mbed TLS crypto
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_PSA_CRYPTO_C)
#include "psa_crypto_service_integration.h"
#include "psa/crypto.h"
#include "psa_crypto_core.h"
#include "psa_crypto_slot_management.h"
#include "psa_crypto_storage.h"
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
#include "psa_crypto_se.h"
#endif
#include <stdlib.h>
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#define ARRAY_LENGTH( array ) ( sizeof( array ) / sizeof( *( array ) ) )
typedef struct
{
psa_key_slot_t key_slots[PSA_KEY_SLOT_COUNT];
unsigned key_slots_initialized : 1;
} psa_global_data_t;
static psa_global_data_t global_data;
/* Access a key slot at the given handle. The handle of a key slot is
* the index of the slot in the global slot array, plus one so that handles
* start at 1 and not 0. */
psa_status_t psa_get_key_slot( psa_key_handle_t handle,
psa_key_slot_t **p_slot )
{
psa_key_slot_t *slot = NULL;
if( ! global_data.key_slots_initialized )
return( PSA_ERROR_BAD_STATE );
/* 0 is not a valid handle under any circumstance. This
* implementation provides slots number 1 to N where N is the
* number of available slots. */
if( handle == 0 || handle > ARRAY_LENGTH( global_data.key_slots ) )
return( PSA_ERROR_INVALID_HANDLE );
slot = &global_data.key_slots[handle - 1];
/* If the slot isn't occupied, the handle is invalid. */
if( ! psa_is_key_slot_occupied( slot ) )
return( PSA_ERROR_INVALID_HANDLE );
*p_slot = slot;
return( PSA_SUCCESS );
}
psa_status_t psa_initialize_key_slots( void )
{
/* Nothing to do: program startup and psa_wipe_all_key_slots() both
* guarantee that the key slots are initialized to all-zero, which
* means that all the key slots are in a valid, empty state. */
global_data.key_slots_initialized = 1;
return( PSA_SUCCESS );
}
void psa_wipe_all_key_slots( void )
{
psa_key_handle_t key;
for( key = 1; key <= PSA_KEY_SLOT_COUNT; key++ )
{
psa_key_slot_t *slot = &global_data.key_slots[key - 1];
(void) psa_wipe_key_slot( slot );
}
global_data.key_slots_initialized = 0;
}
psa_status_t psa_get_empty_key_slot( psa_key_handle_t *handle,
psa_key_slot_t **p_slot )
{
if( ! global_data.key_slots_initialized )
return( PSA_ERROR_BAD_STATE );
for( *handle = PSA_KEY_SLOT_COUNT; *handle != 0; --( *handle ) )
{
*p_slot = &global_data.key_slots[*handle - 1];
if( ! psa_is_key_slot_occupied( *p_slot ) )
return( PSA_SUCCESS );
}
*p_slot = NULL;
return( PSA_ERROR_INSUFFICIENT_MEMORY );
}
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
static psa_status_t psa_load_persistent_key_into_slot( psa_key_slot_t *slot )
{
psa_status_t status = PSA_SUCCESS;
uint8_t *key_data = NULL;
size_t key_data_length = 0;
status = psa_load_persistent_key( &slot->attr,
&key_data, &key_data_length );
if( status != PSA_SUCCESS )
goto exit;
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
if( psa_key_lifetime_is_external( slot->attr.lifetime ) )
{
psa_se_key_data_storage_t *data;
if( key_data_length != sizeof( *data ) )
{
status = PSA_ERROR_STORAGE_FAILURE;
goto exit;
}
data = (psa_se_key_data_storage_t *) key_data;
memcpy( &slot->data.se.slot_number, &data->slot_number,
sizeof( slot->data.se.slot_number ) );
memcpy( &slot->attr.bits, &data->bits,
sizeof( slot->attr.bits ) );
}
else
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
{
status = psa_import_key_into_slot( slot, key_data, key_data_length );
}
exit:
psa_free_persistent_key_data( key_data, key_data_length );
return( status );
}
/** Check whether a key identifier is acceptable.
*
* For backward compatibility, key identifiers that were valid in a
* past released version must remain valid, unless a migration path
* is provided.
*
* \param file_id The key identifier to check.
* \param vendor_ok Nonzero to allow key ids in the vendor range.
* 0 to allow only key ids in the application range.
*
* \return 1 if \p file_id is acceptable, otherwise 0.
*/
static int psa_is_key_id_valid( psa_key_file_id_t file_id,
int vendor_ok )
{
psa_app_key_id_t key_id = PSA_KEY_FILE_GET_KEY_ID( file_id );
if( PSA_KEY_ID_USER_MIN <= key_id && key_id <= PSA_KEY_ID_USER_MAX )
return( 1 );
else if( vendor_ok &&
PSA_KEY_ID_VENDOR_MIN <= key_id &&
key_id <= PSA_KEY_ID_VENDOR_MAX )
return( 1 );
else
return( 0 );
}
#endif /* defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) */
psa_status_t psa_validate_key_location( psa_key_lifetime_t lifetime,
psa_se_drv_table_entry_t **p_drv )
{
if ( psa_key_lifetime_is_external( lifetime ) )
{
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
psa_se_drv_table_entry_t *driver = psa_get_se_driver_entry( lifetime );
if( driver == NULL )
return( PSA_ERROR_INVALID_ARGUMENT );
else
{
if (p_drv != NULL)
*p_drv = driver;
return( PSA_SUCCESS );
}
#else
(void) p_drv;
return( PSA_ERROR_INVALID_ARGUMENT );
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
}
else
/* Local/internal keys are always valid */
return( PSA_SUCCESS );
}
psa_status_t psa_validate_key_persistence( psa_key_lifetime_t lifetime,
psa_key_id_t key_id )
{
if ( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
{
/* Volatile keys are always supported */
return( PSA_SUCCESS );
}
else
{
/* Persistent keys require storage support */
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
if( psa_is_key_id_valid( key_id,
psa_key_lifetime_is_external( lifetime ) ) )
return( PSA_SUCCESS );
else
return( PSA_ERROR_INVALID_ARGUMENT );
#else /* MBEDTLS_PSA_CRYPTO_STORAGE_C */
(void) key_id;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* !MBEDTLS_PSA_CRYPTO_STORAGE_C */
}
}
psa_status_t psa_open_key( psa_key_file_id_t id, psa_key_handle_t *handle )
{
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
psa_status_t status;
psa_key_slot_t *slot;
*handle = 0;
if( ! psa_is_key_id_valid( id, 1 ) )
return( PSA_ERROR_INVALID_ARGUMENT );
status = psa_get_empty_key_slot( handle, &slot );
if( status != PSA_SUCCESS )
return( status );
slot->attr.lifetime = PSA_KEY_LIFETIME_PERSISTENT;
slot->attr.id = id;
status = psa_load_persistent_key_into_slot( slot );
if( status != PSA_SUCCESS )
{
psa_wipe_key_slot( slot );
*handle = 0;
}
return( status );
#else /* defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) */
(void) id;
*handle = 0;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* !defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) */
}
psa_status_t psa_close_key( psa_key_handle_t handle )
{
psa_status_t status;
psa_key_slot_t *slot;
if( handle == 0 )
return( PSA_SUCCESS );
status = psa_get_key_slot( handle, &slot );
if( status != PSA_SUCCESS )
return( status );
return( psa_wipe_key_slot( slot ) );
}
void mbedtls_psa_get_stats( mbedtls_psa_stats_t *stats )
{
psa_key_handle_t key;
memset( stats, 0, sizeof( *stats ) );
for( key = 1; key <= PSA_KEY_SLOT_COUNT; key++ )
{
const psa_key_slot_t *slot = &global_data.key_slots[key - 1];
if( ! psa_is_key_slot_occupied( slot ) )
{
++stats->empty_slots;
continue;
}
if( slot->attr.lifetime == PSA_KEY_LIFETIME_VOLATILE )
++stats->volatile_slots;
else if( slot->attr.lifetime == PSA_KEY_LIFETIME_PERSISTENT )
{
psa_app_key_id_t id = PSA_KEY_FILE_GET_KEY_ID(slot->attr.id);
++stats->persistent_slots;
if( id > stats->max_open_internal_key_id )
stats->max_open_internal_key_id = id;
}
else
{
psa_app_key_id_t id = PSA_KEY_FILE_GET_KEY_ID(slot->attr.id);
++stats->external_slots;
if( id > stats->max_open_external_key_id )
stats->max_open_external_key_id = id;
}
}
}
#endif /* MBEDTLS_PSA_CRYPTO_C */

View File

@@ -1,126 +0,0 @@
/*
* PSA crypto layer on top of Mbed TLS crypto
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PSA_CRYPTO_SLOT_MANAGEMENT_H
#define PSA_CRYPTO_SLOT_MANAGEMENT_H
#include "psa/crypto.h"
#include "psa_crypto_se.h"
/* Number of key slots (plus one because 0 is not used).
* The value is a compile-time constant for now, for simplicity. */
#define PSA_KEY_SLOT_COUNT 32
/** Access a key slot at the given handle.
*
* \param handle Key handle to query.
* \param[out] p_slot On success, `*p_slot` contains a pointer to the
* key slot in memory designated by \p handle.
*
* \retval PSA_SUCCESS
* Success: \p handle is a handle to `*p_slot`. Note that `*p_slot`
* may be empty or occupied.
* \retval PSA_ERROR_INVALID_HANDLE
* \p handle is out of range or is not in use.
* \retval PSA_ERROR_BAD_STATE
* The library has not been initialized.
*/
psa_status_t psa_get_key_slot( psa_key_handle_t handle,
psa_key_slot_t **p_slot );
/** Initialize the key slot structures.
*
* \retval PSA_SUCCESS
* Currently this function always succeeds.
*/
psa_status_t psa_initialize_key_slots( void );
/** Delete all data from key slots in memory.
*
* This does not affect persistent storage. */
void psa_wipe_all_key_slots( void );
/** Find a free key slot.
*
* This function returns a key slot that is available for use and is in its
* ground state (all-bits-zero).
*
* \param[out] handle On success, a slot number that can be used as a
* handle to the slot.
* \param[out] p_slot On success, a pointer to the slot.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_BAD_STATE
*/
psa_status_t psa_get_empty_key_slot( psa_key_handle_t *handle,
psa_key_slot_t **p_slot );
/** Test whether a lifetime designates a key in an external cryptoprocessor.
*
* \param lifetime The lifetime to test.
*
* \retval 1
* The lifetime designates an external key. There should be a
* registered driver for this lifetime, otherwise the key cannot
* be created or manipulated.
* \retval 0
* The lifetime designates a key that is volatile or in internal
* storage.
*/
static inline int psa_key_lifetime_is_external( psa_key_lifetime_t lifetime )
{
return( PSA_KEY_LIFETIME_GET_LOCATION( lifetime )
!= PSA_KEY_LOCATION_LOCAL_STORAGE );
}
/** Validate a key's location.
*
* This function checks whether the key's attributes point to a location that
* is known to the PSA Core, and returns the driver function table if the key
* is to be found in an external location.
*
* \param[in] lifetime The key lifetime attribute.
* \param[out] p_drv On success, when a key is located in external
* storage, returns a pointer to the driver table
* associated with the key's storage location.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT
*/
psa_status_t psa_validate_key_location( psa_key_lifetime_t lifetime,
psa_se_drv_table_entry_t **p_drv );
/** Validate that a key's persistence attributes are valid.
*
* This function checks whether a key's declared persistence level and key ID
* attributes are valid and known to the PSA Core in its actual configuration.
*
* \param[in] lifetime The key lifetime attribute.
* \param[in] key_id The key ID attribute
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT
*/
psa_status_t psa_validate_key_persistence( psa_key_lifetime_t lifetime,
psa_key_id_t key_id );
#endif /* PSA_CRYPTO_SLOT_MANAGEMENT_H */

View File

@@ -1,509 +0,0 @@
/*
* PSA persistent key storage
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined(MBEDTLS_CONFIG_FILE)
#include MBEDTLS_CONFIG_FILE
#else
#include "mbedtls/config.h"
#endif
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C)
#include <stdlib.h>
#include <string.h>
#include "psa_crypto_service_integration.h"
#include "psa/crypto.h"
#include "psa_crypto_storage.h"
#include "mbedtls/platform_util.h"
#if defined(MBEDTLS_PSA_ITS_FILE_C)
#include "psa_crypto_its.h"
#else /* Native ITS implementation */
#include "psa/error.h"
#include "psa/internal_trusted_storage.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
/****************************************************************/
/* Key storage */
/****************************************************************/
/* Determine a file name (ITS file identifier) for the given key file
* identifier. The file name must be distinct from any file that is used
* for a purpose other than storing a key. Currently, the only such file
* is the random seed file whose name is PSA_CRYPTO_ITS_RANDOM_SEED_UID
* and whose value is 0xFFFFFF52. */
static psa_storage_uid_t psa_its_identifier_of_slot( psa_key_file_id_t file_id )
{
#if defined(MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER) && \
defined(PSA_CRYPTO_SECURE)
/* Encode the owner in the upper 32 bits. This means that if
* owner values are nonzero (as they are on a PSA platform),
* no key file will ever have a value less than 0x100000000, so
* the whole range 0..0xffffffff is available for non-key files. */
uint32_t unsigned_owner = (uint32_t) file_id.owner;
return( (uint64_t) unsigned_owner << 32 | file_id.key_id );
#else
/* Use the key id directly as a file name.
* psa_is_key_file_id_valid() in psa_crypto_slot_management.c
* is responsible for ensuring that key identifiers do not have a
* value that is reserved for non-key files. */
return( file_id );
#endif
}
/**
* \brief Load persistent data for the given key slot number.
*
* This function reads data from a storage backend and returns the data in a
* buffer.
*
* \param key Persistent identifier of the key to be loaded. This
* should be an occupied storage location.
* \param[out] data Buffer where the data is to be written.
* \param data_size Size of the \c data buffer in bytes.
*
* \retval PSA_SUCCESS
* \retval PSA_ERROR_STORAGE_FAILURE
* \retval PSA_ERROR_DOES_NOT_EXIST
*/
static psa_status_t psa_crypto_storage_load( const psa_key_file_id_t key,
uint8_t *data,
size_t data_size )
{
psa_status_t status;
psa_storage_uid_t data_identifier = psa_its_identifier_of_slot( key );
struct psa_storage_info_t data_identifier_info;
size_t data_length = 0;
status = psa_its_get_info( data_identifier, &data_identifier_info );
if( status != PSA_SUCCESS )
return( status );
status = psa_its_get( data_identifier, 0, (uint32_t) data_size, data, &data_length );
if( data_size != data_length )
return( PSA_ERROR_STORAGE_FAILURE );
return( status );
}
int psa_is_key_present_in_storage( const psa_key_file_id_t key )
{
psa_status_t ret;
psa_storage_uid_t data_identifier = psa_its_identifier_of_slot( key );
struct psa_storage_info_t data_identifier_info;
ret = psa_its_get_info( data_identifier, &data_identifier_info );
if( ret == PSA_ERROR_DOES_NOT_EXIST )
return( 0 );
return( 1 );
}
/**
* \brief Store persistent data for the given key slot number.
*
* This function stores the given data buffer to a persistent storage.
*
* \param key Persistent identifier of the key to be stored. This
* should be an unoccupied storage location.
* \param[in] data Buffer containing the data to be stored.
* \param data_length The number of bytes
* that make up the data.
*
* \retval PSA_SUCCESS
* \retval PSA_ERROR_INSUFFICIENT_STORAGE
* \retval PSA_ERROR_STORAGE_FAILURE
* \retval PSA_ERROR_ALREADY_EXISTS
*/
static psa_status_t psa_crypto_storage_store( const psa_key_file_id_t key,
const uint8_t *data,
size_t data_length )
{
psa_status_t status;
psa_storage_uid_t data_identifier = psa_its_identifier_of_slot( key );
struct psa_storage_info_t data_identifier_info;
if( psa_is_key_present_in_storage( key ) == 1 )
return( PSA_ERROR_ALREADY_EXISTS );
status = psa_its_set( data_identifier, (uint32_t) data_length, data, 0 );
if( status != PSA_SUCCESS )
{
return( PSA_ERROR_STORAGE_FAILURE );
}
status = psa_its_get_info( data_identifier, &data_identifier_info );
if( status != PSA_SUCCESS )
{
goto exit;
}
if( data_identifier_info.size != data_length )
{
status = PSA_ERROR_STORAGE_FAILURE;
goto exit;
}
exit:
if( status != PSA_SUCCESS )
{
/* Remove the file in case we managed to create it but something
* went wrong. It's ok if the file doesn't exist. If the file exists
* but the removal fails, we're already reporting an error so there's
* nothing else we can do. */
(void) psa_its_remove( data_identifier );
}
return( status );
}
psa_status_t psa_destroy_persistent_key( const psa_key_file_id_t key )
{
psa_status_t ret;
psa_storage_uid_t data_identifier = psa_its_identifier_of_slot( key );
struct psa_storage_info_t data_identifier_info;
ret = psa_its_get_info( data_identifier, &data_identifier_info );
if( ret == PSA_ERROR_DOES_NOT_EXIST )
return( PSA_SUCCESS );
if( psa_its_remove( data_identifier ) != PSA_SUCCESS )
return( PSA_ERROR_STORAGE_FAILURE );
ret = psa_its_get_info( data_identifier, &data_identifier_info );
if( ret != PSA_ERROR_DOES_NOT_EXIST )
return( PSA_ERROR_STORAGE_FAILURE );
return( PSA_SUCCESS );
}
/**
* \brief Get data length for given key slot number.
*
* \param key Persistent identifier whose stored data length
* is to be obtained.
* \param[out] data_length The number of bytes that make up the data.
*
* \retval PSA_SUCCESS
* \retval PSA_ERROR_STORAGE_FAILURE
*/
static psa_status_t psa_crypto_storage_get_data_length(
const psa_key_file_id_t key,
size_t *data_length )
{
psa_status_t status;
psa_storage_uid_t data_identifier = psa_its_identifier_of_slot( key );
struct psa_storage_info_t data_identifier_info;
status = psa_its_get_info( data_identifier, &data_identifier_info );
if( status != PSA_SUCCESS )
return( status );
*data_length = (size_t) data_identifier_info.size;
return( PSA_SUCCESS );
}
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE( n, b, i ) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE( n, b, i ) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
/**
* Persistent key storage magic header.
*/
#define PSA_KEY_STORAGE_MAGIC_HEADER "PSA\0KEY"
#define PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH ( sizeof( PSA_KEY_STORAGE_MAGIC_HEADER ) )
typedef struct {
uint8_t magic[PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH];
uint8_t version[4];
uint8_t lifetime[sizeof( psa_key_lifetime_t )];
uint8_t type[4]; /* Size=4 for a 2-byte type to keep the structure more
* regular and aligned and to make potential future
* extensibility easier. */
uint8_t policy[sizeof( psa_key_policy_t )];
uint8_t data_len[4];
uint8_t key_data[];
} psa_persistent_key_storage_format;
void psa_format_key_data_for_storage( const uint8_t *data,
const size_t data_length,
const psa_core_key_attributes_t *attr,
uint8_t *storage_data )
{
psa_persistent_key_storage_format *storage_format =
(psa_persistent_key_storage_format *) storage_data;
memcpy( storage_format->magic, PSA_KEY_STORAGE_MAGIC_HEADER, PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH );
PUT_UINT32_LE( 0, storage_format->version, 0 );
PUT_UINT32_LE( attr->lifetime, storage_format->lifetime, 0 );
PUT_UINT32_LE( (uint32_t) attr->type, storage_format->type, 0 );
PUT_UINT32_LE( attr->policy.usage, storage_format->policy, 0 );
PUT_UINT32_LE( attr->policy.alg, storage_format->policy, sizeof( uint32_t ) );
PUT_UINT32_LE( attr->policy.alg2, storage_format->policy, 2 * sizeof( uint32_t ) );
PUT_UINT32_LE( data_length, storage_format->data_len, 0 );
memcpy( storage_format->key_data, data, data_length );
}
static psa_status_t check_magic_header( const uint8_t *data )
{
if( memcmp( data, PSA_KEY_STORAGE_MAGIC_HEADER,
PSA_KEY_STORAGE_MAGIC_HEADER_LENGTH ) != 0 )
return( PSA_ERROR_STORAGE_FAILURE );
return( PSA_SUCCESS );
}
psa_status_t psa_parse_key_data_from_storage( const uint8_t *storage_data,
size_t storage_data_length,
uint8_t **key_data,
size_t *key_data_length,
psa_core_key_attributes_t *attr )
{
psa_status_t status;
const psa_persistent_key_storage_format *storage_format =
(const psa_persistent_key_storage_format *)storage_data;
uint32_t version;
uint32_t type;
if( storage_data_length < sizeof(*storage_format) )
return( PSA_ERROR_STORAGE_FAILURE );
status = check_magic_header( storage_data );
if( status != PSA_SUCCESS )
return( status );
GET_UINT32_LE( version, storage_format->version, 0 );
if( version != 0 )
return( PSA_ERROR_STORAGE_FAILURE );
GET_UINT32_LE( *key_data_length, storage_format->data_len, 0 );
if( *key_data_length > ( storage_data_length - sizeof(*storage_format) ) ||
*key_data_length > PSA_CRYPTO_MAX_STORAGE_SIZE )
return( PSA_ERROR_STORAGE_FAILURE );
if( *key_data_length == 0 )
{
*key_data = NULL;
}
else
{
*key_data = mbedtls_calloc( 1, *key_data_length );
if( *key_data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
memcpy( *key_data, storage_format->key_data, *key_data_length );
}
GET_UINT32_LE( attr->lifetime, storage_format->lifetime, 0 );
GET_UINT32_LE( type, storage_format->type, 0 );
if( type <= (psa_key_type_t) -1 )
attr->type = (psa_key_type_t) type;
else
return( PSA_ERROR_STORAGE_FAILURE );
GET_UINT32_LE( attr->policy.usage, storage_format->policy, 0 );
GET_UINT32_LE( attr->policy.alg, storage_format->policy, sizeof( uint32_t ) );
GET_UINT32_LE( attr->policy.alg2, storage_format->policy, 2 * sizeof( uint32_t ) );
return( PSA_SUCCESS );
}
psa_status_t psa_save_persistent_key( const psa_core_key_attributes_t *attr,
const uint8_t *data,
const size_t data_length )
{
size_t storage_data_length;
uint8_t *storage_data;
psa_status_t status;
if( data_length > PSA_CRYPTO_MAX_STORAGE_SIZE )
return PSA_ERROR_INSUFFICIENT_STORAGE;
storage_data_length = data_length + sizeof( psa_persistent_key_storage_format );
storage_data = mbedtls_calloc( 1, storage_data_length );
if( storage_data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
psa_format_key_data_for_storage( data, data_length, attr, storage_data );
status = psa_crypto_storage_store( attr->id,
storage_data, storage_data_length );
mbedtls_free( storage_data );
return( status );
}
void psa_free_persistent_key_data( uint8_t *key_data, size_t key_data_length )
{
if( key_data != NULL )
{
mbedtls_platform_zeroize( key_data, key_data_length );
}
mbedtls_free( key_data );
}
psa_status_t psa_load_persistent_key( psa_core_key_attributes_t *attr,
uint8_t **data,
size_t *data_length )
{
psa_status_t status = PSA_SUCCESS;
uint8_t *loaded_data;
size_t storage_data_length = 0;
psa_key_id_t key = attr->id;
status = psa_crypto_storage_get_data_length( key, &storage_data_length );
if( status != PSA_SUCCESS )
return( status );
loaded_data = mbedtls_calloc( 1, storage_data_length );
if( loaded_data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
status = psa_crypto_storage_load( key, loaded_data, storage_data_length );
if( status != PSA_SUCCESS )
goto exit;
status = psa_parse_key_data_from_storage( loaded_data, storage_data_length,
data, data_length, attr );
exit:
mbedtls_free( loaded_data );
return( status );
}
/****************************************************************/
/* Transactions */
/****************************************************************/
#if defined(PSA_CRYPTO_STORAGE_HAS_TRANSACTIONS)
psa_crypto_transaction_t psa_crypto_transaction;
psa_status_t psa_crypto_save_transaction( void )
{
struct psa_storage_info_t p_info;
psa_status_t status;
status = psa_its_get_info( PSA_CRYPTO_ITS_TRANSACTION_UID, &p_info );
if( status == PSA_SUCCESS )
{
/* This shouldn't happen: we're trying to start a transaction while
* there is still a transaction that hasn't been replayed. */
return( PSA_ERROR_CORRUPTION_DETECTED );
}
else if( status != PSA_ERROR_DOES_NOT_EXIST )
return( status );
return( psa_its_set( PSA_CRYPTO_ITS_TRANSACTION_UID,
sizeof( psa_crypto_transaction ),
&psa_crypto_transaction,
0 ) );
}
psa_status_t psa_crypto_load_transaction( void )
{
psa_status_t status;
size_t length;
status = psa_its_get( PSA_CRYPTO_ITS_TRANSACTION_UID, 0,
sizeof( psa_crypto_transaction ),
&psa_crypto_transaction, &length );
if( status != PSA_SUCCESS )
return( status );
if( length != sizeof( psa_crypto_transaction ) )
return( PSA_ERROR_STORAGE_FAILURE );
return( PSA_SUCCESS );
}
psa_status_t psa_crypto_stop_transaction( void )
{
psa_status_t status = psa_its_remove( PSA_CRYPTO_ITS_TRANSACTION_UID );
/* Whether or not updating the storage succeeded, the transaction is
* finished now. It's too late to go back, so zero out the in-memory
* data. */
memset( &psa_crypto_transaction, 0, sizeof( psa_crypto_transaction ) );
return( status );
}
#endif /* PSA_CRYPTO_STORAGE_HAS_TRANSACTIONS */
/****************************************************************/
/* Random generator state */
/****************************************************************/
#if defined(MBEDTLS_PSA_INJECT_ENTROPY)
psa_status_t mbedtls_psa_storage_inject_entropy( const unsigned char *seed,
size_t seed_size )
{
psa_status_t status;
struct psa_storage_info_t p_info;
status = psa_its_get_info( PSA_CRYPTO_ITS_RANDOM_SEED_UID, &p_info );
if( PSA_ERROR_DOES_NOT_EXIST == status ) /* No seed exists */
{
status = psa_its_set( PSA_CRYPTO_ITS_RANDOM_SEED_UID, seed_size, seed, 0 );
}
else if( PSA_SUCCESS == status )
{
/* You should not be here. Seed needs to be injected only once */
status = PSA_ERROR_NOT_PERMITTED;
}
return( status );
}
#endif /* MBEDTLS_PSA_INJECT_ENTROPY */
/****************************************************************/
/* The end */
/****************************************************************/
#endif /* MBEDTLS_PSA_CRYPTO_STORAGE_C */

View File

@@ -1,259 +0,0 @@
/*
* PSA ITS simulator over stdio files.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if defined(MBEDTLS_CONFIG_FILE)
#include MBEDTLS_CONFIG_FILE
#else
#include "mbedtls/config.h"
#endif
#if defined(MBEDTLS_PSA_ITS_FILE_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_snprintf snprintf
#endif
#if defined(_WIN32)
#include <windows.h>
#endif
#include "psa_crypto_its.h"
#include <limits.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#if !defined(PSA_ITS_STORAGE_PREFIX)
#define PSA_ITS_STORAGE_PREFIX ""
#endif
#define PSA_ITS_STORAGE_FILENAME_PATTERN "%08lx%08lx"
#define PSA_ITS_STORAGE_SUFFIX ".psa_its"
#define PSA_ITS_STORAGE_FILENAME_LENGTH \
( sizeof( PSA_ITS_STORAGE_PREFIX ) - 1 + /*prefix without terminating 0*/ \
16 + /*UID (64-bit number in hex)*/ \
sizeof( PSA_ITS_STORAGE_SUFFIX ) - 1 + /*suffix without terminating 0*/ \
1 /*terminating null byte*/ )
#define PSA_ITS_STORAGE_TEMP \
PSA_ITS_STORAGE_PREFIX "tempfile" PSA_ITS_STORAGE_SUFFIX
/* The maximum value of psa_storage_info_t.size */
#define PSA_ITS_MAX_SIZE 0xffffffff
#define PSA_ITS_MAGIC_STRING "PSA\0ITS\0"
#define PSA_ITS_MAGIC_LENGTH 8
/* As rename fails on Windows if the new filepath already exists,
* use MoveFileExA with the MOVEFILE_REPLACE_EXISTING flag instead.
* Returns 0 on success, nonzero on failure. */
#if defined(_WIN32)
#define rename_replace_existing( oldpath, newpath ) \
( ! MoveFileExA( oldpath, newpath, MOVEFILE_REPLACE_EXISTING ) )
#else
#define rename_replace_existing( oldpath, newpath ) rename( oldpath, newpath )
#endif
typedef struct
{
uint8_t magic[PSA_ITS_MAGIC_LENGTH];
uint8_t size[sizeof( uint32_t )];
uint8_t flags[sizeof( psa_storage_create_flags_t )];
} psa_its_file_header_t;
static void psa_its_fill_filename( psa_storage_uid_t uid, char *filename )
{
/* Break up the UID into two 32-bit pieces so as not to rely on
* long long support in snprintf. */
mbedtls_snprintf( filename, PSA_ITS_STORAGE_FILENAME_LENGTH,
"%s" PSA_ITS_STORAGE_FILENAME_PATTERN "%s",
PSA_ITS_STORAGE_PREFIX,
(unsigned long) ( uid >> 32 ),
(unsigned long) ( uid & 0xffffffff ),
PSA_ITS_STORAGE_SUFFIX );
}
static psa_status_t psa_its_read_file( psa_storage_uid_t uid,
struct psa_storage_info_t *p_info,
FILE **p_stream )
{
char filename[PSA_ITS_STORAGE_FILENAME_LENGTH];
psa_its_file_header_t header;
size_t n;
*p_stream = NULL;
psa_its_fill_filename( uid, filename );
*p_stream = fopen( filename, "rb" );
if( *p_stream == NULL )
return( PSA_ERROR_DOES_NOT_EXIST );
n = fread( &header, 1, sizeof( header ), *p_stream );
if( n != sizeof( header ) )
return( PSA_ERROR_DATA_CORRUPT );
if( memcmp( header.magic, PSA_ITS_MAGIC_STRING,
PSA_ITS_MAGIC_LENGTH ) != 0 )
return( PSA_ERROR_DATA_CORRUPT );
p_info->size = ( header.size[0] |
header.size[1] << 8 |
header.size[2] << 16 |
header.size[3] << 24 );
p_info->flags = ( header.flags[0] |
header.flags[1] << 8 |
header.flags[2] << 16 |
header.flags[3] << 24 );
return( PSA_SUCCESS );
}
psa_status_t psa_its_get_info( psa_storage_uid_t uid,
struct psa_storage_info_t *p_info )
{
psa_status_t status;
FILE *stream = NULL;
status = psa_its_read_file( uid, p_info, &stream );
if( stream != NULL )
fclose( stream );
return( status );
}
psa_status_t psa_its_get( psa_storage_uid_t uid,
uint32_t data_offset,
uint32_t data_length,
void *p_data,
size_t *p_data_length )
{
psa_status_t status;
FILE *stream = NULL;
size_t n;
struct psa_storage_info_t info;
status = psa_its_read_file( uid, &info, &stream );
if( status != PSA_SUCCESS )
goto exit;
status = PSA_ERROR_INVALID_ARGUMENT;
if( data_offset + data_length < data_offset )
goto exit;
#if SIZE_MAX < 0xffffffff
if( data_offset + data_length > SIZE_MAX )
goto exit;
#endif
if( data_offset + data_length > info.size )
goto exit;
status = PSA_ERROR_STORAGE_FAILURE;
#if LONG_MAX < 0xffffffff
while( data_offset > LONG_MAX )
{
if( fseek( stream, LONG_MAX, SEEK_CUR ) != 0 )
goto exit;
data_offset -= LONG_MAX;
}
#endif
if( fseek( stream, data_offset, SEEK_CUR ) != 0 )
goto exit;
n = fread( p_data, 1, data_length, stream );
if( n != data_length )
goto exit;
status = PSA_SUCCESS;
if( p_data_length != NULL )
*p_data_length = n;
exit:
if( stream != NULL )
fclose( stream );
return( status );
}
psa_status_t psa_its_set( psa_storage_uid_t uid,
uint32_t data_length,
const void *p_data,
psa_storage_create_flags_t create_flags )
{
psa_status_t status = PSA_ERROR_STORAGE_FAILURE;
char filename[PSA_ITS_STORAGE_FILENAME_LENGTH];
FILE *stream = NULL;
psa_its_file_header_t header;
size_t n;
memcpy( header.magic, PSA_ITS_MAGIC_STRING, PSA_ITS_MAGIC_LENGTH );
header.size[0] = data_length & 0xff;
header.size[1] = ( data_length >> 8 ) & 0xff;
header.size[2] = ( data_length >> 16 ) & 0xff;
header.size[3] = ( data_length >> 24 ) & 0xff;
header.flags[0] = create_flags & 0xff;
header.flags[1] = ( create_flags >> 8 ) & 0xff;
header.flags[2] = ( create_flags >> 16 ) & 0xff;
header.flags[3] = ( create_flags >> 24 ) & 0xff;
psa_its_fill_filename( uid, filename );
stream = fopen( PSA_ITS_STORAGE_TEMP, "wb" );
if( stream == NULL )
goto exit;
status = PSA_ERROR_INSUFFICIENT_STORAGE;
n = fwrite( &header, 1, sizeof( header ), stream );
if( n != sizeof( header ) )
goto exit;
if( data_length != 0 )
{
n = fwrite( p_data, 1, data_length, stream );
if( n != data_length )
goto exit;
}
status = PSA_SUCCESS;
exit:
if( stream != NULL )
{
int ret = fclose( stream );
if( status == PSA_SUCCESS && ret != 0 )
status = PSA_ERROR_INSUFFICIENT_STORAGE;
}
if( status == PSA_SUCCESS )
{
if( rename_replace_existing( PSA_ITS_STORAGE_TEMP, filename ) != 0 )
status = PSA_ERROR_STORAGE_FAILURE;
}
/* The temporary file may still exist, but only in failure cases where
* we're already reporting an error. So there's nothing we can do on
* failure. If the function succeeded, and in some error cases, the
* temporary file doesn't exist and so remove() is expected to fail.
* Thus we just ignore the return status of remove(). */
(void) remove( PSA_ITS_STORAGE_TEMP );
return( status );
}
psa_status_t psa_its_remove( psa_storage_uid_t uid )
{
char filename[PSA_ITS_STORAGE_FILENAME_LENGTH];
FILE *stream;
psa_its_fill_filename( uid, filename );
stream = fopen( filename, "rb" );
if( stream == NULL )
return( PSA_ERROR_DOES_NOT_EXIST );
fclose( stream );
if( remove( filename ) != 0 )
return( PSA_ERROR_STORAGE_FAILURE );
return( PSA_SUCCESS );
}
#endif /* MBEDTLS_PSA_ITS_FILE_C */

View File

@@ -1,554 +0,0 @@
/*
* RIPE MD-160 implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The RIPEMD-160 algorithm was designed by RIPE in 1996
* http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html
* http://ehash.iaik.tugraz.at/wiki/RIPEMD-160
*/
#include "common.h"
#if defined(MBEDTLS_RIPEMD160_C)
#include "mbedtls/ripemd160.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_RIPEMD160_ALT)
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
void mbedtls_ripemd160_init( mbedtls_ripemd160_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_ripemd160_context ) );
}
void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ripemd160_context ) );
}
void mbedtls_ripemd160_clone( mbedtls_ripemd160_context *dst,
const mbedtls_ripemd160_context *src )
{
*dst = *src;
}
/*
* RIPEMD-160 context setup
*/
int mbedtls_ripemd160_starts_ret( mbedtls_ripemd160_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
ctx->state[4] = 0xC3D2E1F0;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_starts( mbedtls_ripemd160_context *ctx )
{
mbedtls_ripemd160_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_RIPEMD160_PROCESS_ALT)
/*
* Process one block
*/
int mbedtls_internal_ripemd160_process( mbedtls_ripemd160_context *ctx,
const unsigned char data[64] )
{
uint32_t A, B, C, D, E, Ap, Bp, Cp, Dp, Ep, X[16];
GET_UINT32_LE( X[ 0], data, 0 );
GET_UINT32_LE( X[ 1], data, 4 );
GET_UINT32_LE( X[ 2], data, 8 );
GET_UINT32_LE( X[ 3], data, 12 );
GET_UINT32_LE( X[ 4], data, 16 );
GET_UINT32_LE( X[ 5], data, 20 );
GET_UINT32_LE( X[ 6], data, 24 );
GET_UINT32_LE( X[ 7], data, 28 );
GET_UINT32_LE( X[ 8], data, 32 );
GET_UINT32_LE( X[ 9], data, 36 );
GET_UINT32_LE( X[10], data, 40 );
GET_UINT32_LE( X[11], data, 44 );
GET_UINT32_LE( X[12], data, 48 );
GET_UINT32_LE( X[13], data, 52 );
GET_UINT32_LE( X[14], data, 56 );
GET_UINT32_LE( X[15], data, 60 );
A = Ap = ctx->state[0];
B = Bp = ctx->state[1];
C = Cp = ctx->state[2];
D = Dp = ctx->state[3];
E = Ep = ctx->state[4];
#define F1( x, y, z ) ( (x) ^ (y) ^ (z) )
#define F2( x, y, z ) ( ( (x) & (y) ) | ( ~(x) & (z) ) )
#define F3( x, y, z ) ( ( (x) | ~(y) ) ^ (z) )
#define F4( x, y, z ) ( ( (x) & (z) ) | ( (y) & ~(z) ) )
#define F5( x, y, z ) ( (x) ^ ( (y) | ~(z) ) )
#define S( x, n ) ( ( (x) << (n) ) | ( (x) >> (32 - (n)) ) )
#define P( a, b, c, d, e, r, s, f, k ) \
do \
{ \
(a) += f( (b), (c), (d) ) + X[r] + (k); \
(a) = S( (a), (s) ) + (e); \
(c) = S( (c), 10 ); \
} while( 0 )
#define P2( a, b, c, d, e, r, s, rp, sp ) \
do \
{ \
P( (a), (b), (c), (d), (e), (r), (s), F, K ); \
P( a ## p, b ## p, c ## p, d ## p, e ## p, \
(rp), (sp), Fp, Kp ); \
} while( 0 )
#define F F1
#define K 0x00000000
#define Fp F5
#define Kp 0x50A28BE6
P2( A, B, C, D, E, 0, 11, 5, 8 );
P2( E, A, B, C, D, 1, 14, 14, 9 );
P2( D, E, A, B, C, 2, 15, 7, 9 );
P2( C, D, E, A, B, 3, 12, 0, 11 );
P2( B, C, D, E, A, 4, 5, 9, 13 );
P2( A, B, C, D, E, 5, 8, 2, 15 );
P2( E, A, B, C, D, 6, 7, 11, 15 );
P2( D, E, A, B, C, 7, 9, 4, 5 );
P2( C, D, E, A, B, 8, 11, 13, 7 );
P2( B, C, D, E, A, 9, 13, 6, 7 );
P2( A, B, C, D, E, 10, 14, 15, 8 );
P2( E, A, B, C, D, 11, 15, 8, 11 );
P2( D, E, A, B, C, 12, 6, 1, 14 );
P2( C, D, E, A, B, 13, 7, 10, 14 );
P2( B, C, D, E, A, 14, 9, 3, 12 );
P2( A, B, C, D, E, 15, 8, 12, 6 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F2
#define K 0x5A827999
#define Fp F4
#define Kp 0x5C4DD124
P2( E, A, B, C, D, 7, 7, 6, 9 );
P2( D, E, A, B, C, 4, 6, 11, 13 );
P2( C, D, E, A, B, 13, 8, 3, 15 );
P2( B, C, D, E, A, 1, 13, 7, 7 );
P2( A, B, C, D, E, 10, 11, 0, 12 );
P2( E, A, B, C, D, 6, 9, 13, 8 );
P2( D, E, A, B, C, 15, 7, 5, 9 );
P2( C, D, E, A, B, 3, 15, 10, 11 );
P2( B, C, D, E, A, 12, 7, 14, 7 );
P2( A, B, C, D, E, 0, 12, 15, 7 );
P2( E, A, B, C, D, 9, 15, 8, 12 );
P2( D, E, A, B, C, 5, 9, 12, 7 );
P2( C, D, E, A, B, 2, 11, 4, 6 );
P2( B, C, D, E, A, 14, 7, 9, 15 );
P2( A, B, C, D, E, 11, 13, 1, 13 );
P2( E, A, B, C, D, 8, 12, 2, 11 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F3
#define K 0x6ED9EBA1
#define Fp F3
#define Kp 0x6D703EF3
P2( D, E, A, B, C, 3, 11, 15, 9 );
P2( C, D, E, A, B, 10, 13, 5, 7 );
P2( B, C, D, E, A, 14, 6, 1, 15 );
P2( A, B, C, D, E, 4, 7, 3, 11 );
P2( E, A, B, C, D, 9, 14, 7, 8 );
P2( D, E, A, B, C, 15, 9, 14, 6 );
P2( C, D, E, A, B, 8, 13, 6, 6 );
P2( B, C, D, E, A, 1, 15, 9, 14 );
P2( A, B, C, D, E, 2, 14, 11, 12 );
P2( E, A, B, C, D, 7, 8, 8, 13 );
P2( D, E, A, B, C, 0, 13, 12, 5 );
P2( C, D, E, A, B, 6, 6, 2, 14 );
P2( B, C, D, E, A, 13, 5, 10, 13 );
P2( A, B, C, D, E, 11, 12, 0, 13 );
P2( E, A, B, C, D, 5, 7, 4, 7 );
P2( D, E, A, B, C, 12, 5, 13, 5 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F4
#define K 0x8F1BBCDC
#define Fp F2
#define Kp 0x7A6D76E9
P2( C, D, E, A, B, 1, 11, 8, 15 );
P2( B, C, D, E, A, 9, 12, 6, 5 );
P2( A, B, C, D, E, 11, 14, 4, 8 );
P2( E, A, B, C, D, 10, 15, 1, 11 );
P2( D, E, A, B, C, 0, 14, 3, 14 );
P2( C, D, E, A, B, 8, 15, 11, 14 );
P2( B, C, D, E, A, 12, 9, 15, 6 );
P2( A, B, C, D, E, 4, 8, 0, 14 );
P2( E, A, B, C, D, 13, 9, 5, 6 );
P2( D, E, A, B, C, 3, 14, 12, 9 );
P2( C, D, E, A, B, 7, 5, 2, 12 );
P2( B, C, D, E, A, 15, 6, 13, 9 );
P2( A, B, C, D, E, 14, 8, 9, 12 );
P2( E, A, B, C, D, 5, 6, 7, 5 );
P2( D, E, A, B, C, 6, 5, 10, 15 );
P2( C, D, E, A, B, 2, 12, 14, 8 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F5
#define K 0xA953FD4E
#define Fp F1
#define Kp 0x00000000
P2( B, C, D, E, A, 4, 9, 12, 8 );
P2( A, B, C, D, E, 0, 15, 15, 5 );
P2( E, A, B, C, D, 5, 5, 10, 12 );
P2( D, E, A, B, C, 9, 11, 4, 9 );
P2( C, D, E, A, B, 7, 6, 1, 12 );
P2( B, C, D, E, A, 12, 8, 5, 5 );
P2( A, B, C, D, E, 2, 13, 8, 14 );
P2( E, A, B, C, D, 10, 12, 7, 6 );
P2( D, E, A, B, C, 14, 5, 6, 8 );
P2( C, D, E, A, B, 1, 12, 2, 13 );
P2( B, C, D, E, A, 3, 13, 13, 6 );
P2( A, B, C, D, E, 8, 14, 14, 5 );
P2( E, A, B, C, D, 11, 11, 0, 15 );
P2( D, E, A, B, C, 6, 8, 3, 13 );
P2( C, D, E, A, B, 15, 5, 9, 11 );
P2( B, C, D, E, A, 13, 6, 11, 11 );
#undef F
#undef K
#undef Fp
#undef Kp
C = ctx->state[1] + C + Dp;
ctx->state[1] = ctx->state[2] + D + Ep;
ctx->state[2] = ctx->state[3] + E + Ap;
ctx->state[3] = ctx->state[4] + A + Bp;
ctx->state[4] = ctx->state[0] + B + Cp;
ctx->state[0] = C;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_process( mbedtls_ripemd160_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_ripemd160_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_RIPEMD160_PROCESS_ALT */
/*
* RIPEMD-160 process buffer
*/
int mbedtls_ripemd160_update_ret( mbedtls_ripemd160_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t fill;
uint32_t left;
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_ripemd160_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_ripemd160_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
{
memcpy( (void *) (ctx->buffer + left), input, ilen );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_update( mbedtls_ripemd160_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_ripemd160_update_ret( ctx, input, ilen );
}
#endif
static const unsigned char ripemd160_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/*
* RIPEMD-160 final digest
*/
int mbedtls_ripemd160_finish_ret( mbedtls_ripemd160_context *ctx,
unsigned char output[20] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint32_t last, padn;
uint32_t high, low;
unsigned char msglen[8];
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_LE( low, msglen, 0 );
PUT_UINT32_LE( high, msglen, 4 );
last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
ret = mbedtls_ripemd160_update_ret( ctx, ripemd160_padding, padn );
if( ret != 0 )
return( ret );
ret = mbedtls_ripemd160_update_ret( ctx, msglen, 8 );
if( ret != 0 )
return( ret );
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
PUT_UINT32_LE( ctx->state[4], output, 16 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_finish( mbedtls_ripemd160_context *ctx,
unsigned char output[20] )
{
mbedtls_ripemd160_finish_ret( ctx, output );
}
#endif
#endif /* ! MBEDTLS_RIPEMD160_ALT */
/*
* output = RIPEMD-160( input buffer )
*/
int mbedtls_ripemd160_ret( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ripemd160_context ctx;
mbedtls_ripemd160_init( &ctx );
if( ( ret = mbedtls_ripemd160_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_ripemd160_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_ripemd160_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_ripemd160_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
mbedtls_ripemd160_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* Test vectors from the RIPEMD-160 paper and
* http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html#HMAC
*/
#define TESTS 8
static const unsigned char ripemd160_test_str[TESTS][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" },
};
static const size_t ripemd160_test_strlen[TESTS] =
{
0, 1, 3, 14, 26, 56, 62, 80
};
static const unsigned char ripemd160_test_md[TESTS][20] =
{
{ 0x9c, 0x11, 0x85, 0xa5, 0xc5, 0xe9, 0xfc, 0x54, 0x61, 0x28,
0x08, 0x97, 0x7e, 0xe8, 0xf5, 0x48, 0xb2, 0x25, 0x8d, 0x31 },
{ 0x0b, 0xdc, 0x9d, 0x2d, 0x25, 0x6b, 0x3e, 0xe9, 0xda, 0xae,
0x34, 0x7b, 0xe6, 0xf4, 0xdc, 0x83, 0x5a, 0x46, 0x7f, 0xfe },
{ 0x8e, 0xb2, 0x08, 0xf7, 0xe0, 0x5d, 0x98, 0x7a, 0x9b, 0x04,
0x4a, 0x8e, 0x98, 0xc6, 0xb0, 0x87, 0xf1, 0x5a, 0x0b, 0xfc },
{ 0x5d, 0x06, 0x89, 0xef, 0x49, 0xd2, 0xfa, 0xe5, 0x72, 0xb8,
0x81, 0xb1, 0x23, 0xa8, 0x5f, 0xfa, 0x21, 0x59, 0x5f, 0x36 },
{ 0xf7, 0x1c, 0x27, 0x10, 0x9c, 0x69, 0x2c, 0x1b, 0x56, 0xbb,
0xdc, 0xeb, 0x5b, 0x9d, 0x28, 0x65, 0xb3, 0x70, 0x8d, 0xbc },
{ 0x12, 0xa0, 0x53, 0x38, 0x4a, 0x9c, 0x0c, 0x88, 0xe4, 0x05,
0xa0, 0x6c, 0x27, 0xdc, 0xf4, 0x9a, 0xda, 0x62, 0xeb, 0x2b },
{ 0xb0, 0xe2, 0x0b, 0x6e, 0x31, 0x16, 0x64, 0x02, 0x86, 0xed,
0x3a, 0x87, 0xa5, 0x71, 0x30, 0x79, 0xb2, 0x1f, 0x51, 0x89 },
{ 0x9b, 0x75, 0x2e, 0x45, 0x57, 0x3d, 0x4b, 0x39, 0xf4, 0xdb,
0xd3, 0x32, 0x3c, 0xab, 0x82, 0xbf, 0x63, 0x32, 0x6b, 0xfb },
};
/*
* Checkup routine
*/
int mbedtls_ripemd160_self_test( int verbose )
{
int i, ret = 0;
unsigned char output[20];
memset( output, 0, sizeof output );
for( i = 0; i < TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " RIPEMD-160 test #%d: ", i + 1 );
ret = mbedtls_ripemd160_ret( ripemd160_test_str[i],
ripemd160_test_strlen[i], output );
if( ret != 0 )
goto fail;
if( memcmp( output, ripemd160_test_md[i], 20 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_RIPEMD160_C */

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@@ -1,486 +0,0 @@
/*
* Helper functions for the RSA module
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "common.h"
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#include "mbedtls/bignum.h"
#include "mbedtls/rsa_internal.h"
/*
* Compute RSA prime factors from public and private exponents
*
* Summary of algorithm:
* Setting F := lcm(P-1,Q-1), the idea is as follows:
*
* (a) For any 1 <= X < N with gcd(X,N)=1, we have X^F = 1 modulo N, so X^(F/2)
* is a square root of 1 in Z/NZ. Since Z/NZ ~= Z/PZ x Z/QZ by CRT and the
* square roots of 1 in Z/PZ and Z/QZ are +1 and -1, this leaves the four
* possibilities X^(F/2) = (+-1, +-1). If it happens that X^(F/2) = (-1,+1)
* or (+1,-1), then gcd(X^(F/2) + 1, N) will be equal to one of the prime
* factors of N.
*
* (b) If we don't know F/2 but (F/2) * K for some odd (!) K, then the same
* construction still applies since (-)^K is the identity on the set of
* roots of 1 in Z/NZ.
*
* The public and private key primitives (-)^E and (-)^D are mutually inverse
* bijections on Z/NZ if and only if (-)^(DE) is the identity on Z/NZ, i.e.
* if and only if DE - 1 is a multiple of F, say DE - 1 = F * L.
* Splitting L = 2^t * K with K odd, we have
*
* DE - 1 = FL = (F/2) * (2^(t+1)) * K,
*
* so (F / 2) * K is among the numbers
*
* (DE - 1) >> 1, (DE - 1) >> 2, ..., (DE - 1) >> ord
*
* where ord is the order of 2 in (DE - 1).
* We can therefore iterate through these numbers apply the construction
* of (a) and (b) above to attempt to factor N.
*
*/
int mbedtls_rsa_deduce_primes( mbedtls_mpi const *N,
mbedtls_mpi const *E, mbedtls_mpi const *D,
mbedtls_mpi *P, mbedtls_mpi *Q )
{
int ret = 0;
uint16_t attempt; /* Number of current attempt */
uint16_t iter; /* Number of squares computed in the current attempt */
uint16_t order; /* Order of 2 in DE - 1 */
mbedtls_mpi T; /* Holds largest odd divisor of DE - 1 */
mbedtls_mpi K; /* Temporary holding the current candidate */
const unsigned char primes[] = { 2,
3, 5, 7, 11, 13, 17, 19, 23,
29, 31, 37, 41, 43, 47, 53, 59,
61, 67, 71, 73, 79, 83, 89, 97,
101, 103, 107, 109, 113, 127, 131, 137,
139, 149, 151, 157, 163, 167, 173, 179,
181, 191, 193, 197, 199, 211, 223, 227,
229, 233, 239, 241, 251
};
const size_t num_primes = sizeof( primes ) / sizeof( *primes );
if( P == NULL || Q == NULL || P->p != NULL || Q->p != NULL )
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
if( mbedtls_mpi_cmp_int( N, 0 ) <= 0 ||
mbedtls_mpi_cmp_int( D, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( D, N ) >= 0 ||
mbedtls_mpi_cmp_int( E, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( E, N ) >= 0 )
{
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
}
/*
* Initializations and temporary changes
*/
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &T );
/* T := DE - 1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, D, E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &T, &T, 1 ) );
if( ( order = (uint16_t) mbedtls_mpi_lsb( &T ) ) == 0 )
{
ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
goto cleanup;
}
/* After this operation, T holds the largest odd divisor of DE - 1. */
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &T, order ) );
/*
* Actual work
*/
/* Skip trying 2 if N == 1 mod 8 */
attempt = 0;
if( N->p[0] % 8 == 1 )
attempt = 1;
for( ; attempt < num_primes; ++attempt )
{
mbedtls_mpi_lset( &K, primes[attempt] );
/* Check if gcd(K,N) = 1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( P, &K, N ) );
if( mbedtls_mpi_cmp_int( P, 1 ) != 0 )
continue;
/* Go through K^T + 1, K^(2T) + 1, K^(4T) + 1, ...
* and check whether they have nontrivial GCD with N. */
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &K, &K, &T, N,
Q /* temporarily use Q for storing Montgomery
* multiplication helper values */ ) );
for( iter = 1; iter <= order; ++iter )
{
/* If we reach 1 prematurely, there's no point
* in continuing to square K */
if( mbedtls_mpi_cmp_int( &K, 1 ) == 0 )
break;
MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( P, &K, N ) );
if( mbedtls_mpi_cmp_int( P, 1 ) == 1 &&
mbedtls_mpi_cmp_mpi( P, N ) == -1 )
{
/*
* Have found a nontrivial divisor P of N.
* Set Q := N / P.
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( Q, NULL, N, P ) );
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, &K, &K ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, N ) );
}
/*
* If we get here, then either we prematurely aborted the loop because
* we reached 1, or K holds primes[attempt]^(DE - 1) mod N, which must
* be 1 if D,E,N were consistent.
* Check if that's the case and abort if not, to avoid very long,
* yet eventually failing, computations if N,D,E were not sane.
*/
if( mbedtls_mpi_cmp_int( &K, 1 ) != 0 )
{
break;
}
}
ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
cleanup:
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &T );
return( ret );
}
/*
* Given P, Q and the public exponent E, deduce D.
* This is essentially a modular inversion.
*/
int mbedtls_rsa_deduce_private_exponent( mbedtls_mpi const *P,
mbedtls_mpi const *Q,
mbedtls_mpi const *E,
mbedtls_mpi *D )
{
int ret = 0;
mbedtls_mpi K, L;
if( D == NULL || mbedtls_mpi_cmp_int( D, 0 ) != 0 )
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
if( mbedtls_mpi_cmp_int( P, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( Q, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( E, 0 ) == 0 )
{
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
}
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &L );
/* Temporarily put K := P-1 and L := Q-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &L, Q, 1 ) );
/* Temporarily put D := gcd(P-1, Q-1) */
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( D, &K, &L ) );
/* K := LCM(P-1, Q-1) */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, &K, &L ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &K, NULL, &K, D ) );
/* Compute modular inverse of E in LCM(P-1, Q-1) */
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( D, E, &K ) );
cleanup:
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &L );
return( ret );
}
/*
* Check that RSA CRT parameters are in accordance with core parameters.
*/
int mbedtls_rsa_validate_crt( const mbedtls_mpi *P, const mbedtls_mpi *Q,
const mbedtls_mpi *D, const mbedtls_mpi *DP,
const mbedtls_mpi *DQ, const mbedtls_mpi *QP )
{
int ret = 0;
mbedtls_mpi K, L;
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &L );
/* Check that DP - D == 0 mod P - 1 */
if( DP != NULL )
{
if( P == NULL )
{
ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &L, DP, D ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &L, &L, &K ) );
if( mbedtls_mpi_cmp_int( &L, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/* Check that DQ - D == 0 mod Q - 1 */
if( DQ != NULL )
{
if( Q == NULL )
{
ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &L, DQ, D ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &L, &L, &K ) );
if( mbedtls_mpi_cmp_int( &L, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/* Check that QP * Q - 1 == 0 mod P */
if( QP != NULL )
{
if( P == NULL || Q == NULL )
{
ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, QP, Q ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, P ) );
if( mbedtls_mpi_cmp_int( &K, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
cleanup:
/* Wrap MPI error codes by RSA check failure error code */
if( ret != 0 &&
ret != MBEDTLS_ERR_RSA_KEY_CHECK_FAILED &&
ret != MBEDTLS_ERR_RSA_BAD_INPUT_DATA )
{
ret += MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
}
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &L );
return( ret );
}
/*
* Check that core RSA parameters are sane.
*/
int mbedtls_rsa_validate_params( const mbedtls_mpi *N, const mbedtls_mpi *P,
const mbedtls_mpi *Q, const mbedtls_mpi *D,
const mbedtls_mpi *E,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = 0;
mbedtls_mpi K, L;
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &L );
/*
* Step 1: If PRNG provided, check that P and Q are prime
*/
#if defined(MBEDTLS_GENPRIME)
/*
* When generating keys, the strongest security we support aims for an error
* rate of at most 2^-100 and we are aiming for the same certainty here as
* well.
*/
if( f_rng != NULL && P != NULL &&
( ret = mbedtls_mpi_is_prime_ext( P, 50, f_rng, p_rng ) ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
if( f_rng != NULL && Q != NULL &&
( ret = mbedtls_mpi_is_prime_ext( Q, 50, f_rng, p_rng ) ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
#else
((void) f_rng);
((void) p_rng);
#endif /* MBEDTLS_GENPRIME */
/*
* Step 2: Check that 1 < N = P * Q
*/
if( P != NULL && Q != NULL && N != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, P, Q ) );
if( mbedtls_mpi_cmp_int( N, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( &K, N ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/*
* Step 3: Check and 1 < D, E < N if present.
*/
if( N != NULL && D != NULL && E != NULL )
{
if ( mbedtls_mpi_cmp_int( D, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( E, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( D, N ) >= 0 ||
mbedtls_mpi_cmp_mpi( E, N ) >= 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/*
* Step 4: Check that D, E are inverse modulo P-1 and Q-1
*/
if( P != NULL && Q != NULL && D != NULL && E != NULL )
{
if( mbedtls_mpi_cmp_int( P, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( Q, 1 ) <= 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
/* Compute DE-1 mod P-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, D, E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &L, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, &L ) );
if( mbedtls_mpi_cmp_int( &K, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
/* Compute DE-1 mod Q-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, D, E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &L, Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, &L ) );
if( mbedtls_mpi_cmp_int( &K, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
cleanup:
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &L );
/* Wrap MPI error codes by RSA check failure error code */
if( ret != 0 && ret != MBEDTLS_ERR_RSA_KEY_CHECK_FAILED )
{
ret += MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
}
return( ret );
}
int mbedtls_rsa_deduce_crt( const mbedtls_mpi *P, const mbedtls_mpi *Q,
const mbedtls_mpi *D, mbedtls_mpi *DP,
mbedtls_mpi *DQ, mbedtls_mpi *QP )
{
int ret = 0;
mbedtls_mpi K;
mbedtls_mpi_init( &K );
/* DP = D mod P-1 */
if( DP != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( DP, D, &K ) );
}
/* DQ = D mod Q-1 */
if( DQ != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( DQ, D, &K ) );
}
/* QP = Q^{-1} mod P */
if( QP != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( QP, Q, P ) );
}
cleanup:
mbedtls_mpi_free( &K );
return( ret );
}
#endif /* MBEDTLS_RSA_C */

View File

@@ -1,568 +0,0 @@
/*
* FIPS-180-1 compliant SHA-1 implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The SHA-1 standard was published by NIST in 1993.
*
* http://www.itl.nist.gov/fipspubs/fip180-1.htm
*/
#include "common.h"
#if defined(MBEDTLS_SHA1_C)
#include "mbedtls/sha1.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#define SHA1_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA1_BAD_INPUT_DATA )
#define SHA1_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
#if !defined(MBEDTLS_SHA1_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
{
SHA1_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
}
void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
}
void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
const mbedtls_sha1_context *src )
{
SHA1_VALIDATE( dst != NULL );
SHA1_VALIDATE( src != NULL );
*dst = *src;
}
/*
* SHA-1 context setup
*/
int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx )
{
SHA1_VALIDATE_RET( ctx != NULL );
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
ctx->state[4] = 0xC3D2E1F0;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
{
mbedtls_sha1_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_SHA1_PROCESS_ALT)
int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
const unsigned char data[64] )
{
uint32_t temp, W[16], A, B, C, D, E;
SHA1_VALIDATE_RET( ctx != NULL );
SHA1_VALIDATE_RET( (const unsigned char *)data != NULL );
GET_UINT32_BE( W[ 0], data, 0 );
GET_UINT32_BE( W[ 1], data, 4 );
GET_UINT32_BE( W[ 2], data, 8 );
GET_UINT32_BE( W[ 3], data, 12 );
GET_UINT32_BE( W[ 4], data, 16 );
GET_UINT32_BE( W[ 5], data, 20 );
GET_UINT32_BE( W[ 6], data, 24 );
GET_UINT32_BE( W[ 7], data, 28 );
GET_UINT32_BE( W[ 8], data, 32 );
GET_UINT32_BE( W[ 9], data, 36 );
GET_UINT32_BE( W[10], data, 40 );
GET_UINT32_BE( W[11], data, 44 );
GET_UINT32_BE( W[12], data, 48 );
GET_UINT32_BE( W[13], data, 52 );
GET_UINT32_BE( W[14], data, 56 );
GET_UINT32_BE( W[15], data, 60 );
#define S(x,n) (((x) << (n)) | (((x) & 0xFFFFFFFF) >> (32 - (n))))
#define R(t) \
( \
temp = W[( (t) - 3 ) & 0x0F] ^ W[( (t) - 8 ) & 0x0F] ^ \
W[( (t) - 14 ) & 0x0F] ^ W[ (t) & 0x0F], \
( W[(t) & 0x0F] = S(temp,1) ) \
)
#define P(a,b,c,d,e,x) \
do \
{ \
(e) += S((a),5) + F((b),(c),(d)) + K + (x); \
(b) = S((b),30); \
} while( 0 )
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
E = ctx->state[4];
#define F(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
#define K 0x5A827999
P( A, B, C, D, E, W[0] );
P( E, A, B, C, D, W[1] );
P( D, E, A, B, C, W[2] );
P( C, D, E, A, B, W[3] );
P( B, C, D, E, A, W[4] );
P( A, B, C, D, E, W[5] );
P( E, A, B, C, D, W[6] );
P( D, E, A, B, C, W[7] );
P( C, D, E, A, B, W[8] );
P( B, C, D, E, A, W[9] );
P( A, B, C, D, E, W[10] );
P( E, A, B, C, D, W[11] );
P( D, E, A, B, C, W[12] );
P( C, D, E, A, B, W[13] );
P( B, C, D, E, A, W[14] );
P( A, B, C, D, E, W[15] );
P( E, A, B, C, D, R(16) );
P( D, E, A, B, C, R(17) );
P( C, D, E, A, B, R(18) );
P( B, C, D, E, A, R(19) );
#undef K
#undef F
#define F(x,y,z) ((x) ^ (y) ^ (z))
#define K 0x6ED9EBA1
P( A, B, C, D, E, R(20) );
P( E, A, B, C, D, R(21) );
P( D, E, A, B, C, R(22) );
P( C, D, E, A, B, R(23) );
P( B, C, D, E, A, R(24) );
P( A, B, C, D, E, R(25) );
P( E, A, B, C, D, R(26) );
P( D, E, A, B, C, R(27) );
P( C, D, E, A, B, R(28) );
P( B, C, D, E, A, R(29) );
P( A, B, C, D, E, R(30) );
P( E, A, B, C, D, R(31) );
P( D, E, A, B, C, R(32) );
P( C, D, E, A, B, R(33) );
P( B, C, D, E, A, R(34) );
P( A, B, C, D, E, R(35) );
P( E, A, B, C, D, R(36) );
P( D, E, A, B, C, R(37) );
P( C, D, E, A, B, R(38) );
P( B, C, D, E, A, R(39) );
#undef K
#undef F
#define F(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
#define K 0x8F1BBCDC
P( A, B, C, D, E, R(40) );
P( E, A, B, C, D, R(41) );
P( D, E, A, B, C, R(42) );
P( C, D, E, A, B, R(43) );
P( B, C, D, E, A, R(44) );
P( A, B, C, D, E, R(45) );
P( E, A, B, C, D, R(46) );
P( D, E, A, B, C, R(47) );
P( C, D, E, A, B, R(48) );
P( B, C, D, E, A, R(49) );
P( A, B, C, D, E, R(50) );
P( E, A, B, C, D, R(51) );
P( D, E, A, B, C, R(52) );
P( C, D, E, A, B, R(53) );
P( B, C, D, E, A, R(54) );
P( A, B, C, D, E, R(55) );
P( E, A, B, C, D, R(56) );
P( D, E, A, B, C, R(57) );
P( C, D, E, A, B, R(58) );
P( B, C, D, E, A, R(59) );
#undef K
#undef F
#define F(x,y,z) ((x) ^ (y) ^ (z))
#define K 0xCA62C1D6
P( A, B, C, D, E, R(60) );
P( E, A, B, C, D, R(61) );
P( D, E, A, B, C, R(62) );
P( C, D, E, A, B, R(63) );
P( B, C, D, E, A, R(64) );
P( A, B, C, D, E, R(65) );
P( E, A, B, C, D, R(66) );
P( D, E, A, B, C, R(67) );
P( C, D, E, A, B, R(68) );
P( B, C, D, E, A, R(69) );
P( A, B, C, D, E, R(70) );
P( E, A, B, C, D, R(71) );
P( D, E, A, B, C, R(72) );
P( C, D, E, A, B, R(73) );
P( B, C, D, E, A, R(74) );
P( A, B, C, D, E, R(75) );
P( E, A, B, C, D, R(76) );
P( D, E, A, B, C, R(77) );
P( C, D, E, A, B, R(78) );
P( B, C, D, E, A, R(79) );
#undef K
#undef F
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
ctx->state[4] += E;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_process( mbedtls_sha1_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_sha1_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_SHA1_PROCESS_ALT */
/*
* SHA-1 process buffer
*/
int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t fill;
uint32_t left;
SHA1_VALIDATE_RET( ctx != NULL );
SHA1_VALIDATE_RET( ilen == 0 || input != NULL );
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_sha1_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_update( mbedtls_sha1_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha1_update_ret( ctx, input, ilen );
}
#endif
/*
* SHA-1 final digest
*/
int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
unsigned char output[20] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint32_t used;
uint32_t high, low;
SHA1_VALIDATE_RET( ctx != NULL );
SHA1_VALIDATE_RET( (unsigned char *)output != NULL );
/*
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
*/
used = ctx->total[0] & 0x3F;
ctx->buffer[used++] = 0x80;
if( used <= 56 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 56 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 64 - used );
if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 56 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_BE( high, ctx->buffer, 56 );
PUT_UINT32_BE( low, ctx->buffer, 60 );
if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT32_BE( ctx->state[0], output, 0 );
PUT_UINT32_BE( ctx->state[1], output, 4 );
PUT_UINT32_BE( ctx->state[2], output, 8 );
PUT_UINT32_BE( ctx->state[3], output, 12 );
PUT_UINT32_BE( ctx->state[4], output, 16 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_finish( mbedtls_sha1_context *ctx,
unsigned char output[20] )
{
mbedtls_sha1_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_SHA1_ALT */
/*
* output = SHA-1( input buffer )
*/
int mbedtls_sha1_ret( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_sha1_context ctx;
SHA1_VALIDATE_RET( ilen == 0 || input != NULL );
SHA1_VALIDATE_RET( (unsigned char *)output != NULL );
mbedtls_sha1_init( &ctx );
if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_sha1_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
mbedtls_sha1_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-1 test vectors
*/
static const unsigned char sha1_test_buf[3][57] =
{
{ "abc" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "" }
};
static const size_t sha1_test_buflen[3] =
{
3, 56, 1000
};
static const unsigned char sha1_test_sum[3][20] =
{
{ 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
{ 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
{ 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
};
/*
* Checkup routine
*/
int mbedtls_sha1_self_test( int verbose )
{
int i, j, buflen, ret = 0;
unsigned char buf[1024];
unsigned char sha1sum[20];
mbedtls_sha1_context ctx;
mbedtls_sha1_init( &ctx );
/*
* SHA-1
*/
for( i = 0; i < 3; i++ )
{
if( verbose != 0 )
mbedtls_printf( " SHA-1 test #%d: ", i + 1 );
if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
goto fail;
if( i == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
{
ret = mbedtls_sha1_update_ret( &ctx, buf, buflen );
if( ret != 0 )
goto fail;
}
}
else
{
ret = mbedtls_sha1_update_ret( &ctx, sha1_test_buf[i],
sha1_test_buflen[i] );
if( ret != 0 )
goto fail;
}
if( ( ret = mbedtls_sha1_finish_ret( &ctx, sha1sum ) ) != 0 )
goto fail;
if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
goto exit;
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
exit:
mbedtls_sha1_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA1_C */

View File

@@ -1,581 +0,0 @@
/*
* FIPS-180-2 compliant SHA-256 implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The SHA-256 Secure Hash Standard was published by NIST in 2002.
*
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
*/
#include "common.h"
#if defined(MBEDTLS_SHA256_C)
#include "mbedtls/sha256.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#define SHA256_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA256_BAD_INPUT_DATA )
#define SHA256_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
#if !defined(MBEDTLS_SHA256_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
do { \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
} while( 0 )
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
do { \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
} while( 0 )
#endif
void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
{
SHA256_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
}
void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
}
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src )
{
SHA256_VALIDATE( dst != NULL );
SHA256_VALIDATE( src != NULL );
*dst = *src;
}
/*
* SHA-256 context setup
*/
int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 )
{
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( is224 == 0 || is224 == 1 );
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is224 == 0 )
{
/* SHA-256 */
ctx->state[0] = 0x6A09E667;
ctx->state[1] = 0xBB67AE85;
ctx->state[2] = 0x3C6EF372;
ctx->state[3] = 0xA54FF53A;
ctx->state[4] = 0x510E527F;
ctx->state[5] = 0x9B05688C;
ctx->state[6] = 0x1F83D9AB;
ctx->state[7] = 0x5BE0CD19;
}
else
{
/* SHA-224 */
ctx->state[0] = 0xC1059ED8;
ctx->state[1] = 0x367CD507;
ctx->state[2] = 0x3070DD17;
ctx->state[3] = 0xF70E5939;
ctx->state[4] = 0xFFC00B31;
ctx->state[5] = 0x68581511;
ctx->state[6] = 0x64F98FA7;
ctx->state[7] = 0xBEFA4FA4;
}
ctx->is224 = is224;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx,
int is224 )
{
mbedtls_sha256_starts_ret( ctx, is224 );
}
#endif
#if !defined(MBEDTLS_SHA256_PROCESS_ALT)
static const uint32_t K[] =
{
0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2,
};
#define SHR(x,n) (((x) & 0xFFFFFFFF) >> (n))
#define ROTR(x,n) (SHR(x,n) | ((x) << (32 - (n))))
#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
#define F0(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
#define F1(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
#define R(t) \
( \
W[t] = S1(W[(t) - 2]) + W[(t) - 7] + \
S0(W[(t) - 15]) + W[(t) - 16] \
)
#define P(a,b,c,d,e,f,g,h,x,K) \
do \
{ \
temp1 = (h) + S3(e) + F1((e),(f),(g)) + (K) + (x); \
temp2 = S2(a) + F0((a),(b),(c)); \
(d) += temp1; (h) = temp1 + temp2; \
} while( 0 )
int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
uint32_t temp1, temp2, W[64];
uint32_t A[8];
unsigned int i;
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( (const unsigned char *)data != NULL );
for( i = 0; i < 8; i++ )
A[i] = ctx->state[i];
#if defined(MBEDTLS_SHA256_SMALLER)
for( i = 0; i < 64; i++ )
{
if( i < 16 )
GET_UINT32_BE( W[i], data, 4 * i );
else
R( i );
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] );
temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3];
A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1;
}
#else /* MBEDTLS_SHA256_SMALLER */
for( i = 0; i < 16; i++ )
GET_UINT32_BE( W[i], data, 4 * i );
for( i = 0; i < 16; i += 8 )
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i+0], K[i+0] );
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i+1], K[i+1] );
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i+2], K[i+2] );
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i+3], K[i+3] );
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i+4], K[i+4] );
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i+5], K[i+5] );
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i+6], K[i+6] );
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i+7], K[i+7] );
}
for( i = 16; i < 64; i += 8 )
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], R(i+0), K[i+0] );
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], R(i+1), K[i+1] );
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], R(i+2), K[i+2] );
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], R(i+3), K[i+3] );
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], R(i+4), K[i+4] );
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], R(i+5), K[i+5] );
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], R(i+6), K[i+6] );
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], R(i+7), K[i+7] );
}
#endif /* MBEDTLS_SHA256_SMALLER */
for( i = 0; i < 8; i++ )
ctx->state[i] += A[i];
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_sha256_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_SHA256_PROCESS_ALT */
/*
* SHA-256 process buffer
*/
int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t fill;
uint32_t left;
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( ilen == 0 || input != NULL );
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_sha256_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha256_update_ret( ctx, input, ilen );
}
#endif
/*
* SHA-256 final digest
*/
int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
unsigned char output[32] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint32_t used;
uint32_t high, low;
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( (unsigned char *)output != NULL );
/*
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
*/
used = ctx->total[0] & 0x3F;
ctx->buffer[used++] = 0x80;
if( used <= 56 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 56 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 64 - used );
if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 56 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_BE( high, ctx->buffer, 56 );
PUT_UINT32_BE( low, ctx->buffer, 60 );
if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT32_BE( ctx->state[0], output, 0 );
PUT_UINT32_BE( ctx->state[1], output, 4 );
PUT_UINT32_BE( ctx->state[2], output, 8 );
PUT_UINT32_BE( ctx->state[3], output, 12 );
PUT_UINT32_BE( ctx->state[4], output, 16 );
PUT_UINT32_BE( ctx->state[5], output, 20 );
PUT_UINT32_BE( ctx->state[6], output, 24 );
if( ctx->is224 == 0 )
PUT_UINT32_BE( ctx->state[7], output, 28 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
unsigned char output[32] )
{
mbedtls_sha256_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_SHA256_ALT */
/*
* output = SHA-256( input buffer )
*/
int mbedtls_sha256_ret( const unsigned char *input,
size_t ilen,
unsigned char output[32],
int is224 )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_sha256_context ctx;
SHA256_VALIDATE_RET( is224 == 0 || is224 == 1 );
SHA256_VALIDATE_RET( ilen == 0 || input != NULL );
SHA256_VALIDATE_RET( (unsigned char *)output != NULL );
mbedtls_sha256_init( &ctx );
if( ( ret = mbedtls_sha256_starts_ret( &ctx, is224 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha256_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha256_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_sha256_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256( const unsigned char *input,
size_t ilen,
unsigned char output[32],
int is224 )
{
mbedtls_sha256_ret( input, ilen, output, is224 );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-2 test vectors
*/
static const unsigned char sha256_test_buf[3][57] =
{
{ "abc" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "" }
};
static const size_t sha256_test_buflen[3] =
{
3, 56, 1000
};
static const unsigned char sha256_test_sum[6][32] =
{
/*
* SHA-224 test vectors
*/
{ 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22,
0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3,
0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7,
0xE3, 0x6C, 0x9D, 0xA7 },
{ 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC,
0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50,
0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19,
0x52, 0x52, 0x25, 0x25 },
{ 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8,
0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B,
0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE,
0x4E, 0xE7, 0xAD, 0x67 },
/*
* SHA-256 test vectors
*/
{ 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
{ 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
{ 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
};
/*
* Checkup routine
*/
int mbedtls_sha256_self_test( int verbose )
{
int i, j, k, buflen, ret = 0;
unsigned char *buf;
unsigned char sha256sum[32];
mbedtls_sha256_context ctx;
buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
if( NULL == buf )
{
if( verbose != 0 )
mbedtls_printf( "Buffer allocation failed\n" );
return( 1 );
}
mbedtls_sha256_init( &ctx );
for( i = 0; i < 6; i++ )
{
j = i % 3;
k = i < 3;
if( verbose != 0 )
mbedtls_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 );
if( ( ret = mbedtls_sha256_starts_ret( &ctx, k ) ) != 0 )
goto fail;
if( j == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
{
ret = mbedtls_sha256_update_ret( &ctx, buf, buflen );
if( ret != 0 )
goto fail;
}
}
else
{
ret = mbedtls_sha256_update_ret( &ctx, sha256_test_buf[j],
sha256_test_buflen[j] );
if( ret != 0 )
goto fail;
}
if( ( ret = mbedtls_sha256_finish_ret( &ctx, sha256sum ) ) != 0 )
goto fail;
if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
goto exit;
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
exit:
mbedtls_sha256_free( &ctx );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA256_C */

View File

@@ -1,674 +0,0 @@
/*
* FIPS-180-2 compliant SHA-384/512 implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The SHA-512 Secure Hash Standard was published by NIST in 2002.
*
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
*/
#include "common.h"
#if defined(MBEDTLS_SHA512_C)
#include "mbedtls/sha512.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/error.h"
#if defined(_MSC_VER) || defined(__WATCOMC__)
#define UL64(x) x##ui64
#else
#define UL64(x) x##ULL
#endif
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#define SHA512_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA512_BAD_INPUT_DATA )
#define SHA512_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
#if !defined(MBEDTLS_SHA512_ALT)
/*
* 64-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT64_BE
#define GET_UINT64_BE(n,b,i) \
{ \
(n) = ( (uint64_t) (b)[(i) ] << 56 ) \
| ( (uint64_t) (b)[(i) + 1] << 48 ) \
| ( (uint64_t) (b)[(i) + 2] << 40 ) \
| ( (uint64_t) (b)[(i) + 3] << 32 ) \
| ( (uint64_t) (b)[(i) + 4] << 24 ) \
| ( (uint64_t) (b)[(i) + 5] << 16 ) \
| ( (uint64_t) (b)[(i) + 6] << 8 ) \
| ( (uint64_t) (b)[(i) + 7] ); \
}
#endif /* GET_UINT64_BE */
#ifndef PUT_UINT64_BE
#define PUT_UINT64_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
(b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
(b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 7] = (unsigned char) ( (n) ); \
}
#endif /* PUT_UINT64_BE */
#if defined(MBEDTLS_SHA512_SMALLER)
static void sha512_put_uint64_be( uint64_t n, unsigned char *b, uint8_t i )
{
PUT_UINT64_BE(n, b, i);
}
#else
#define sha512_put_uint64_be PUT_UINT64_BE
#endif /* MBEDTLS_SHA512_SMALLER */
void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
{
SHA512_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
}
void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
}
void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
const mbedtls_sha512_context *src )
{
SHA512_VALIDATE( dst != NULL );
SHA512_VALIDATE( src != NULL );
*dst = *src;
}
/*
* SHA-512 context setup
*/
int mbedtls_sha512_starts_ret( mbedtls_sha512_context *ctx, int is384 )
{
SHA512_VALIDATE_RET( ctx != NULL );
#if !defined(MBEDTLS_SHA512_NO_SHA384)
SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
#else
SHA512_VALIDATE_RET( is384 == 0 );
#endif
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is384 == 0 )
{
/* SHA-512 */
ctx->state[0] = UL64(0x6A09E667F3BCC908);
ctx->state[1] = UL64(0xBB67AE8584CAA73B);
ctx->state[2] = UL64(0x3C6EF372FE94F82B);
ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
ctx->state[4] = UL64(0x510E527FADE682D1);
ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
ctx->state[7] = UL64(0x5BE0CD19137E2179);
}
else
{
#if defined(MBEDTLS_SHA512_NO_SHA384)
return( MBEDTLS_ERR_SHA512_BAD_INPUT_DATA );
#else
/* SHA-384 */
ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
ctx->state[1] = UL64(0x629A292A367CD507);
ctx->state[2] = UL64(0x9159015A3070DD17);
ctx->state[3] = UL64(0x152FECD8F70E5939);
ctx->state[4] = UL64(0x67332667FFC00B31);
ctx->state[5] = UL64(0x8EB44A8768581511);
ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
#endif /* MBEDTLS_SHA512_NO_SHA384 */
}
#if !defined(MBEDTLS_SHA512_NO_SHA384)
ctx->is384 = is384;
#endif
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_starts( mbedtls_sha512_context *ctx,
int is384 )
{
mbedtls_sha512_starts_ret( ctx, is384 );
}
#endif
#if !defined(MBEDTLS_SHA512_PROCESS_ALT)
/*
* Round constants
*/
static const uint64_t K[80] =
{
UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
};
int mbedtls_internal_sha512_process( mbedtls_sha512_context *ctx,
const unsigned char data[128] )
{
int i;
uint64_t temp1, temp2, W[80];
uint64_t A[8];
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( (const unsigned char *)data != NULL );
#define SHR(x,n) ((x) >> (n))
#define ROTR(x,n) (SHR((x),(n)) | ((x) << (64 - (n))))
#define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
#define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
#define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
#define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
#define F0(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
#define F1(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
#define P(a,b,c,d,e,f,g,h,x,K) \
do \
{ \
temp1 = (h) + S3(e) + F1((e),(f),(g)) + (K) + (x); \
temp2 = S2(a) + F0((a),(b),(c)); \
(d) += temp1; (h) = temp1 + temp2; \
} while( 0 )
for( i = 0; i < 8; i++ )
A[i] = ctx->state[i];
#if defined(MBEDTLS_SHA512_SMALLER)
for( i = 0; i < 80; i++ )
{
if( i < 16 )
{
GET_UINT64_BE( W[i], data, i << 3 );
}
else
{
W[i] = S1(W[i - 2]) + W[i - 7] +
S0(W[i - 15]) + W[i - 16];
}
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] );
temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3];
A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1;
}
#else /* MBEDTLS_SHA512_SMALLER */
for( i = 0; i < 16; i++ )
{
GET_UINT64_BE( W[i], data, i << 3 );
}
for( ; i < 80; i++ )
{
W[i] = S1(W[i - 2]) + W[i - 7] +
S0(W[i - 15]) + W[i - 16];
}
i = 0;
do
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] ); i++;
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i], K[i] ); i++;
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i], K[i] ); i++;
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i], K[i] ); i++;
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i], K[i] ); i++;
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i], K[i] ); i++;
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i], K[i] ); i++;
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i], K[i] ); i++;
}
while( i < 80 );
#endif /* MBEDTLS_SHA512_SMALLER */
for( i = 0; i < 8; i++ )
ctx->state[i] += A[i];
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_process( mbedtls_sha512_context *ctx,
const unsigned char data[128] )
{
mbedtls_internal_sha512_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_SHA512_PROCESS_ALT */
/*
* SHA-512 process buffer
*/
int mbedtls_sha512_update_ret( mbedtls_sha512_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t fill;
unsigned int left;
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
if( ilen == 0 )
return( 0 );
left = (unsigned int) (ctx->total[0] & 0x7F);
fill = 128 - left;
ctx->total[0] += (uint64_t) ilen;
if( ctx->total[0] < (uint64_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 128 )
{
if( ( ret = mbedtls_internal_sha512_process( ctx, input ) ) != 0 )
return( ret );
input += 128;
ilen -= 128;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_update( mbedtls_sha512_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha512_update_ret( ctx, input, ilen );
}
#endif
/*
* SHA-512 final digest
*/
int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx,
unsigned char output[64] )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned used;
uint64_t high, low;
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
/*
* Add padding: 0x80 then 0x00 until 16 bytes remain for the length
*/
used = ctx->total[0] & 0x7F;
ctx->buffer[used++] = 0x80;
if( used <= 112 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 112 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 128 - used );
if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 112 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 61 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
sha512_put_uint64_be( high, ctx->buffer, 112 );
sha512_put_uint64_be( low, ctx->buffer, 120 );
if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
sha512_put_uint64_be( ctx->state[0], output, 0 );
sha512_put_uint64_be( ctx->state[1], output, 8 );
sha512_put_uint64_be( ctx->state[2], output, 16 );
sha512_put_uint64_be( ctx->state[3], output, 24 );
sha512_put_uint64_be( ctx->state[4], output, 32 );
sha512_put_uint64_be( ctx->state[5], output, 40 );
#if !defined(MBEDTLS_SHA512_NO_SHA384)
if( ctx->is384 == 0 )
#endif
{
sha512_put_uint64_be( ctx->state[6], output, 48 );
sha512_put_uint64_be( ctx->state[7], output, 56 );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_finish( mbedtls_sha512_context *ctx,
unsigned char output[64] )
{
mbedtls_sha512_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_SHA512_ALT */
/*
* output = SHA-512( input buffer )
*/
int mbedtls_sha512_ret( const unsigned char *input,
size_t ilen,
unsigned char output[64],
int is384 )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_sha512_context ctx;
#if !defined(MBEDTLS_SHA512_NO_SHA384)
SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
#else
SHA512_VALIDATE_RET( is384 == 0 );
#endif
SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
mbedtls_sha512_init( &ctx );
if( ( ret = mbedtls_sha512_starts_ret( &ctx, is384 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha512_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha512_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_sha512_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512( const unsigned char *input,
size_t ilen,
unsigned char output[64],
int is384 )
{
mbedtls_sha512_ret( input, ilen, output, is384 );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-2 test vectors
*/
static const unsigned char sha512_test_buf[3][113] =
{
{ "abc" },
{ "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
{ "" }
};
static const size_t sha512_test_buflen[3] =
{
3, 112, 1000
};
static const unsigned char sha512_test_sum[][64] =
{
#if !defined(MBEDTLS_SHA512_NO_SHA384)
/*
* SHA-384 test vectors
*/
{ 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
{ 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
{ 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
#endif /* !MBEDTLS_SHA512_NO_SHA384 */
/*
* SHA-512 test vectors
*/
{ 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
{ 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
{ 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
};
#define ARRAY_LENGTH( a ) ( sizeof( a ) / sizeof( ( a )[0] ) )
/*
* Checkup routine
*/
int mbedtls_sha512_self_test( int verbose )
{
int i, j, k, buflen, ret = 0;
unsigned char *buf;
unsigned char sha512sum[64];
mbedtls_sha512_context ctx;
buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
if( NULL == buf )
{
if( verbose != 0 )
mbedtls_printf( "Buffer allocation failed\n" );
return( 1 );
}
mbedtls_sha512_init( &ctx );
for( i = 0; i < (int) ARRAY_LENGTH(sha512_test_sum); i++ )
{
j = i % 3;
#if !defined(MBEDTLS_SHA512_NO_SHA384)
k = i < 3;
#else
k = 0;
#endif
if( verbose != 0 )
mbedtls_printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 );
if( ( ret = mbedtls_sha512_starts_ret( &ctx, k ) ) != 0 )
goto fail;
if( j == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
{
ret = mbedtls_sha512_update_ret( &ctx, buf, buflen );
if( ret != 0 )
goto fail;
}
}
else
{
ret = mbedtls_sha512_update_ret( &ctx, sha512_test_buf[j],
sha512_test_buflen[j] );
if( ret != 0 )
goto fail;
}
if( ( ret = mbedtls_sha512_finish_ret( &ctx, sha512sum ) ) != 0 )
goto fail;
if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
goto exit;
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
exit:
mbedtls_sha512_free( &ctx );
mbedtls_free( buf );
return( ret );
}
#undef ARRAY_LENGTH
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA512_C */

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@@ -1,249 +0,0 @@
/*
* DTLS cookie callbacks implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* These session callbacks use a simple chained list
* to store and retrieve the session information.
*/
#include "common.h"
#if defined(MBEDTLS_SSL_COOKIE_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/ssl_cookie.h"
#include "mbedtls/ssl_internal.h"
#include "mbedtls/error.h"
#include "mbedtls/platform_util.h"
#include <string.h>
/*
* If DTLS is in use, then at least one of SHA-1, SHA-256, SHA-512 is
* available. Try SHA-256 first, 512 wastes resources since we need to stay
* with max 32 bytes of cookie for DTLS 1.0
*/
#if defined(MBEDTLS_SHA256_C)
#define COOKIE_MD MBEDTLS_MD_SHA224
#define COOKIE_MD_OUTLEN 32
#define COOKIE_HMAC_LEN 28
#elif defined(MBEDTLS_SHA512_C)
#define COOKIE_MD MBEDTLS_MD_SHA384
#define COOKIE_MD_OUTLEN 48
#define COOKIE_HMAC_LEN 28
#elif defined(MBEDTLS_SHA1_C)
#define COOKIE_MD MBEDTLS_MD_SHA1
#define COOKIE_MD_OUTLEN 20
#define COOKIE_HMAC_LEN 20
#else
#error "DTLS hello verify needs SHA-1 or SHA-2"
#endif
/*
* Cookies are formed of a 4-bytes timestamp (or serial number) and
* an HMAC of timestemp and client ID.
*/
#define COOKIE_LEN ( 4 + COOKIE_HMAC_LEN )
void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx )
{
mbedtls_md_init( &ctx->hmac_ctx );
#if !defined(MBEDTLS_HAVE_TIME)
ctx->serial = 0;
#endif
ctx->timeout = MBEDTLS_SSL_COOKIE_TIMEOUT;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay )
{
ctx->timeout = delay;
}
void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx )
{
mbedtls_md_free( &ctx->hmac_ctx );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_cookie_ctx ) );
}
int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char key[COOKIE_MD_OUTLEN];
if( ( ret = f_rng( p_rng, key, sizeof( key ) ) ) != 0 )
return( ret );
ret = mbedtls_md_setup( &ctx->hmac_ctx, mbedtls_md_info_from_type( COOKIE_MD ), 1 );
if( ret != 0 )
return( ret );
ret = mbedtls_md_hmac_starts( &ctx->hmac_ctx, key, sizeof( key ) );
if( ret != 0 )
return( ret );
mbedtls_platform_zeroize( key, sizeof( key ) );
return( 0 );
}
/*
* Generate the HMAC part of a cookie
*/
static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx,
const unsigned char time[4],
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
{
unsigned char hmac_out[COOKIE_MD_OUTLEN];
MBEDTLS_SSL_CHK_BUF_PTR( *p, end, COOKIE_HMAC_LEN );
if( mbedtls_md_hmac_reset( hmac_ctx ) != 0 ||
mbedtls_md_hmac_update( hmac_ctx, time, 4 ) != 0 ||
mbedtls_md_hmac_update( hmac_ctx, cli_id, cli_id_len ) != 0 ||
mbedtls_md_hmac_finish( hmac_ctx, hmac_out ) != 0 )
{
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
memcpy( *p, hmac_out, COOKIE_HMAC_LEN );
*p += COOKIE_HMAC_LEN;
return( 0 );
}
/*
* Generate cookie for DTLS ClientHello verification
*/
int mbedtls_ssl_cookie_write( void *p_ctx,
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx;
unsigned long t;
if( ctx == NULL || cli_id == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_CHK_BUF_PTR( *p, end, COOKIE_LEN );
#if defined(MBEDTLS_HAVE_TIME)
t = (unsigned long) mbedtls_time( NULL );
#else
t = ctx->serial++;
#endif
(*p)[0] = (unsigned char)( t >> 24 );
(*p)[1] = (unsigned char)( t >> 16 );
(*p)[2] = (unsigned char)( t >> 8 );
(*p)[3] = (unsigned char)( t );
*p += 4;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret );
#endif
ret = ssl_cookie_hmac( &ctx->hmac_ctx, *p - 4,
p, end, cli_id, cli_id_len );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR +
MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Check a cookie
*/
int mbedtls_ssl_cookie_check( void *p_ctx,
const unsigned char *cookie, size_t cookie_len,
const unsigned char *cli_id, size_t cli_id_len )
{
unsigned char ref_hmac[COOKIE_HMAC_LEN];
int ret = 0;
unsigned char *p = ref_hmac;
mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx;
unsigned long cur_time, cookie_time;
if( ctx == NULL || cli_id == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( cookie_len != COOKIE_LEN )
return( -1 );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret );
#endif
if( ssl_cookie_hmac( &ctx->hmac_ctx, cookie,
&p, p + sizeof( ref_hmac ),
cli_id, cli_id_len ) != 0 )
ret = -1;
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR +
MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
if( ret != 0 )
return( ret );
if( mbedtls_ssl_safer_memcmp( cookie + 4, ref_hmac, sizeof( ref_hmac ) ) != 0 )
return( -1 );
#if defined(MBEDTLS_HAVE_TIME)
cur_time = (unsigned long) mbedtls_time( NULL );
#else
cur_time = ctx->serial;
#endif
cookie_time = ( (unsigned long) cookie[0] << 24 ) |
( (unsigned long) cookie[1] << 16 ) |
( (unsigned long) cookie[2] << 8 ) |
( (unsigned long) cookie[3] );
if( ctx->timeout != 0 && cur_time - cookie_time > ctx->timeout )
return( -1 );
return( 0 );
}
#endif /* MBEDTLS_SSL_COOKIE_C */

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/**
* \file ssl_invasive.h
*
* \brief SSL module: interfaces for invasive testing only.
*
* The interfaces in this file are intended for testing purposes only.
* They SHOULD NOT be made available in library integrations except when
* building the library for testing.
*/
/*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBEDTLS_SSL_INVASIVE_H
#define MBEDTLS_SSL_INVASIVE_H
#include "common.h"
#include "mbedtls/md.h"
#if defined(MBEDTLS_TEST_HOOKS) && \
defined(MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC)
/** \brief Compute the HMAC of variable-length data with constant flow.
*
* This function computes the HMAC of the concatenation of \p add_data and \p
* data, and does with a code flow and memory access pattern that does not
* depend on \p data_len_secret, but only on \p min_data_len and \p
* max_data_len. In particular, this function always reads exactly \p
* max_data_len bytes from \p data.
*
* \param ctx The HMAC context. It must have keys configured
* with mbedtls_md_hmac_starts() and use one of the
* following hashes: SHA-384, SHA-256, SHA-1 or MD-5.
* It is reset using mbedtls_md_hmac_reset() after
* the computation is complete to prepare for the
* next computation.
* \param add_data The additional data prepended to \p data. This
* must point to a readable buffer of \p add_data_len
* bytes.
* \param add_data_len The length of \p add_data in bytes.
* \param data The data appended to \p add_data. This must point
* to a readable buffer of \p max_data_len bytes.
* \param data_len_secret The length of the data to process in \p data.
* This must be no less than \p min_data_len and no
* greater than \p max_data_len.
* \param min_data_len The minimal length of \p data in bytes.
* \param max_data_len The maximal length of \p data in bytes.
* \param output The HMAC will be written here. This must point to
* a writable buffer of sufficient size to hold the
* HMAC value.
*
* \retval 0
* Success.
* \retval MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED
* The hardware accelerator failed.
*/
int mbedtls_ssl_cf_hmac(
mbedtls_md_context_t *ctx,
const unsigned char *add_data, size_t add_data_len,
const unsigned char *data, size_t data_len_secret,
size_t min_data_len, size_t max_data_len,
unsigned char *output );
/** \brief Copy data from a secret position with constant flow.
*
* This function copies \p len bytes from \p src_base + \p offset_secret to \p
* dst, with a code flow and memory access pattern that does not depend on \p
* offset_secret, but only on \p offset_min, \p offset_max and \p len.
*
* \param dst The destination buffer. This must point to a writable
* buffer of at least \p len bytes.
* \param src_base The base of the source buffer. This must point to a
* readable buffer of at least \p offset_max + \p len
* bytes.
* \param offset_secret The offset in the source buffer from which to copy.
* This must be no less than \p offset_min and no greater
* than \p offset_max.
* \param offset_min The minimal value of \p offset_secret.
* \param offset_max The maximal value of \p offset_secret.
* \param len The number of bytes to copy.
*/
void mbedtls_ssl_cf_memcpy_offset( unsigned char *dst,
const unsigned char *src_base,
size_t offset_secret,
size_t offset_min, size_t offset_max,
size_t len );
#endif /* MBEDTLS_TEST_HOOKS && MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC */
#endif /* MBEDTLS_SSL_INVASIVE_H */

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/*
* TLS server tickets callbacks implementation
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_SSL_TICKET_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/ssl_internal.h"
#include "mbedtls/ssl_ticket.h"
#include "mbedtls/error.h"
#include "mbedtls/platform_util.h"
#include <string.h>
/*
* Initialze context
*/
void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_ssl_ticket_context ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
#define MAX_KEY_BYTES 32 /* 256 bits */
#define TICKET_KEY_NAME_BYTES 4
#define TICKET_IV_BYTES 12
#define TICKET_CRYPT_LEN_BYTES 2
#define TICKET_AUTH_TAG_BYTES 16
#define TICKET_MIN_LEN ( TICKET_KEY_NAME_BYTES + \
TICKET_IV_BYTES + \
TICKET_CRYPT_LEN_BYTES + \
TICKET_AUTH_TAG_BYTES )
#define TICKET_ADD_DATA_LEN ( TICKET_KEY_NAME_BYTES + \
TICKET_IV_BYTES + \
TICKET_CRYPT_LEN_BYTES )
/*
* Generate/update a key
*/
static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx,
unsigned char index )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char buf[MAX_KEY_BYTES];
mbedtls_ssl_ticket_key *key = ctx->keys + index;
#if defined(MBEDTLS_HAVE_TIME)
key->generation_time = (uint32_t) mbedtls_time( NULL );
#endif
if( ( ret = ctx->f_rng( ctx->p_rng, key->name, sizeof( key->name ) ) ) != 0 )
return( ret );
if( ( ret = ctx->f_rng( ctx->p_rng, buf, sizeof( buf ) ) ) != 0 )
return( ret );
/* With GCM and CCM, same context can encrypt & decrypt */
ret = mbedtls_cipher_setkey( &key->ctx, buf,
mbedtls_cipher_get_key_bitlen( &key->ctx ),
MBEDTLS_ENCRYPT );
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
/*
* Rotate/generate keys if necessary
*/
static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx )
{
#if !defined(MBEDTLS_HAVE_TIME)
((void) ctx);
#else
if( ctx->ticket_lifetime != 0 )
{
uint32_t current_time = (uint32_t) mbedtls_time( NULL );
uint32_t key_time = ctx->keys[ctx->active].generation_time;
if( current_time >= key_time &&
current_time - key_time < ctx->ticket_lifetime )
{
return( 0 );
}
ctx->active = 1 - ctx->active;
return( ssl_ticket_gen_key( ctx, ctx->active ) );
}
else
#endif /* MBEDTLS_HAVE_TIME */
return( 0 );
}
/*
* Setup context for actual use
*/
int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_cipher_type_t cipher,
uint32_t lifetime )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const mbedtls_cipher_info_t *cipher_info;
ctx->f_rng = f_rng;
ctx->p_rng = p_rng;
ctx->ticket_lifetime = lifetime;
cipher_info = mbedtls_cipher_info_from_type( cipher);
if( cipher_info == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( cipher_info->mode != MBEDTLS_MODE_GCM &&
cipher_info->mode != MBEDTLS_MODE_CCM )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
ret = mbedtls_cipher_setup_psa( &ctx->keys[0].ctx,
cipher_info, TICKET_AUTH_TAG_BYTES );
if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
return( ret );
/* We don't yet expect to support all ciphers through PSA,
* so allow fallback to ordinary mbedtls_cipher_setup(). */
if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 )
return( ret );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
ret = mbedtls_cipher_setup_psa( &ctx->keys[1].ctx,
cipher_info, TICKET_AUTH_TAG_BYTES );
if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
return( ret );
if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 )
return( ret );
if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 ||
( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 )
{
return( ret );
}
return( 0 );
}
/*
* Create session ticket, with the following structure:
*
* struct {
* opaque key_name[4];
* opaque iv[12];
* opaque encrypted_state<0..2^16-1>;
* opaque tag[16];
* } ticket;
*
* The key_name, iv, and length of encrypted_state are the additional
* authenticated data.
*/
int mbedtls_ssl_ticket_write( void *p_ticket,
const mbedtls_ssl_session *session,
unsigned char *start,
const unsigned char *end,
size_t *tlen,
uint32_t *ticket_lifetime )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ssl_ticket_context *ctx = p_ticket;
mbedtls_ssl_ticket_key *key;
unsigned char *key_name = start;
unsigned char *iv = start + TICKET_KEY_NAME_BYTES;
unsigned char *state_len_bytes = iv + TICKET_IV_BYTES;
unsigned char *state = state_len_bytes + TICKET_CRYPT_LEN_BYTES;
unsigned char *tag;
size_t clear_len, ciph_len;
*tlen = 0;
if( ctx == NULL || ctx->f_rng == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
/* We need at least 4 bytes for key_name, 12 for IV, 2 for len 16 for tag,
* in addition to session itself, that will be checked when writing it. */
MBEDTLS_SSL_CHK_BUF_PTR( start, end, TICKET_MIN_LEN );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
goto cleanup;
key = &ctx->keys[ctx->active];
*ticket_lifetime = ctx->ticket_lifetime;
memcpy( key_name, key->name, TICKET_KEY_NAME_BYTES );
if( ( ret = ctx->f_rng( ctx->p_rng, iv, TICKET_IV_BYTES ) ) != 0 )
goto cleanup;
/* Dump session state */
if( ( ret = mbedtls_ssl_session_save( session,
state, end - state,
&clear_len ) ) != 0 ||
(unsigned long) clear_len > 65535 )
{
goto cleanup;
}
state_len_bytes[0] = ( clear_len >> 8 ) & 0xff;
state_len_bytes[1] = ( clear_len ) & 0xff;
/* Encrypt and authenticate */
tag = state + clear_len;
if( ( ret = mbedtls_cipher_auth_encrypt( &key->ctx,
iv, TICKET_IV_BYTES,
/* Additional data: key name, IV and length */
key_name, TICKET_ADD_DATA_LEN,
state, clear_len, state, &ciph_len,
tag, TICKET_AUTH_TAG_BYTES ) ) != 0 )
{
goto cleanup;
}
if( ciph_len != clear_len )
{
ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
goto cleanup;
}
*tlen = TICKET_MIN_LEN + ciph_len;
cleanup:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Select key based on name
*/
static mbedtls_ssl_ticket_key *ssl_ticket_select_key(
mbedtls_ssl_ticket_context *ctx,
const unsigned char name[4] )
{
unsigned char i;
for( i = 0; i < sizeof( ctx->keys ) / sizeof( *ctx->keys ); i++ )
if( memcmp( name, ctx->keys[i].name, 4 ) == 0 )
return( &ctx->keys[i] );
return( NULL );
}
/*
* Load session ticket (see mbedtls_ssl_ticket_write for structure)
*/
int mbedtls_ssl_ticket_parse( void *p_ticket,
mbedtls_ssl_session *session,
unsigned char *buf,
size_t len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_ssl_ticket_context *ctx = p_ticket;
mbedtls_ssl_ticket_key *key;
unsigned char *key_name = buf;
unsigned char *iv = buf + TICKET_KEY_NAME_BYTES;
unsigned char *enc_len_p = iv + TICKET_IV_BYTES;
unsigned char *ticket = enc_len_p + TICKET_CRYPT_LEN_BYTES;
unsigned char *tag;
size_t enc_len, clear_len;
if( ctx == NULL || ctx->f_rng == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( len < TICKET_MIN_LEN )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
goto cleanup;
enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1];
tag = ticket + enc_len;
if( len != TICKET_MIN_LEN + enc_len )
{
ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
goto cleanup;
}
/* Select key */
if( ( key = ssl_ticket_select_key( ctx, key_name ) ) == NULL )
{
/* We can't know for sure but this is a likely option unless we're
* under attack - this is only informative anyway */
ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
goto cleanup;
}
/* Decrypt and authenticate */
if( ( ret = mbedtls_cipher_auth_decrypt( &key->ctx,
iv, TICKET_IV_BYTES,
/* Additional data: key name, IV and length */
key_name, TICKET_ADD_DATA_LEN,
ticket, enc_len,
ticket, &clear_len,
tag, TICKET_AUTH_TAG_BYTES ) ) != 0 )
{
if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
ret = MBEDTLS_ERR_SSL_INVALID_MAC;
goto cleanup;
}
if( clear_len != enc_len )
{
ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
goto cleanup;
}
/* Actually load session */
if( ( ret = mbedtls_ssl_session_load( session, ticket, clear_len ) ) != 0 )
goto cleanup;
#if defined(MBEDTLS_HAVE_TIME)
{
/* Check for expiration */
mbedtls_time_t current_time = mbedtls_time( NULL );
if( current_time < session->start ||
(uint32_t)( current_time - session->start ) > ctx->ticket_lifetime )
{
ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
goto cleanup;
}
}
#endif
cleanup:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Free context
*/
void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx )
{
mbedtls_cipher_free( &ctx->keys[0].ctx );
mbedtls_cipher_free( &ctx->keys[1].ctx );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_ticket_context ) );
}
#endif /* MBEDTLS_SSL_TICKET_C */

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/*
* Threading abstraction layer
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Ensure gmtime_r is available even with -std=c99; must be defined before
* config.h, which pulls in glibc's features.h. Harmless on other platforms.
*/
#if !defined(_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE 200112L
#endif
#include "common.h"
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT)
#if !defined(_WIN32) && (defined(unix) || \
defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
defined(__MACH__)))
#include <unistd.h>
#endif /* !_WIN32 && (unix || __unix || __unix__ ||
* (__APPLE__ && __MACH__)) */
#if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) )
/*
* This is a convenience shorthand macro to avoid checking the long
* preprocessor conditions above. Ideally, we could expose this macro in
* platform_util.h and simply use it in platform_util.c, threading.c and
* threading.h. However, this macro is not part of the Mbed TLS public API, so
* we keep it private by only defining it in this file
*/
#if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) )
#define THREADING_USE_GMTIME
#endif /* ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) */
#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) ) */
#endif /* MBEDTLS_HAVE_TIME_DATE && !MBEDTLS_PLATFORM_GMTIME_R_ALT */
#if defined(MBEDTLS_THREADING_PTHREAD)
static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL )
return;
mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0;
}
static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || !mutex->is_valid )
return;
(void) pthread_mutex_destroy( &mutex->mutex );
mutex->is_valid = 0;
}
static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || ! mutex->is_valid )
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
if( pthread_mutex_lock( &mutex->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
return( 0 );
}
static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || ! mutex->is_valid )
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
if( pthread_mutex_unlock( &mutex->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
return( 0 );
}
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread;
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread;
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread;
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread;
/*
* With phtreads we can statically initialize mutexes
*/
#define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 }
#endif /* MBEDTLS_THREADING_PTHREAD */
#if defined(MBEDTLS_THREADING_ALT)
static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex )
{
((void) mutex );
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
}
static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex )
{
((void) mutex );
return;
}
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
/*
* Set functions pointers and initialize global mutexes
*/
void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ),
void (*mutex_free)( mbedtls_threading_mutex_t * ),
int (*mutex_lock)( mbedtls_threading_mutex_t * ),
int (*mutex_unlock)( mbedtls_threading_mutex_t * ) )
{
mbedtls_mutex_init = mutex_init;
mbedtls_mutex_free = mutex_free;
mbedtls_mutex_lock = mutex_lock;
mbedtls_mutex_unlock = mutex_unlock;
#if defined(MBEDTLS_FS_IO)
mbedtls_mutex_init( &mbedtls_threading_readdir_mutex );
#endif
#if defined(THREADING_USE_GMTIME)
mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex );
#endif
}
/*
* Free global mutexes
*/
void mbedtls_threading_free_alt( void )
{
#if defined(MBEDTLS_FS_IO)
mbedtls_mutex_free( &mbedtls_threading_readdir_mutex );
#endif
#if defined(THREADING_USE_GMTIME)
mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex );
#endif
}
#endif /* MBEDTLS_THREADING_ALT */
/*
* Define global mutexes
*/
#ifndef MUTEX_INIT
#define MUTEX_INIT
#endif
#if defined(MBEDTLS_FS_IO)
mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex MUTEX_INIT;
#endif
#if defined(THREADING_USE_GMTIME)
mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex MUTEX_INIT;
#endif
#endif /* MBEDTLS_THREADING_C */

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@@ -1,530 +0,0 @@
/*
* Portable interface to the CPU cycle counter
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif
#if defined(MBEDTLS_TIMING_C)
#include "mbedtls/timing.h"
#if !defined(MBEDTLS_TIMING_ALT)
#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
!defined(__HAIKU__) && !defined(__midipix__)
#error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h"
#endif
#ifndef asm
#define asm __asm
#endif
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#include <windows.h>
#include <process.h>
struct _hr_time
{
LARGE_INTEGER start;
};
#else
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <signal.h>
#include <time.h>
struct _hr_time
{
struct timeval start;
};
#endif /* _WIN32 && !EFIX64 && !EFI32 */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
( defined(_MSC_VER) && defined(_M_IX86) ) || defined(__WATCOMC__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tsc;
__asm rdtsc
__asm mov [tsc], eax
return( tsc );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
( _MSC_VER && _M_IX86 ) || __WATCOMC__ */
/* some versions of mingw-64 have 32-bit longs even on x84_64 */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && ( defined(__i386__) || ( \
( defined(__amd64__) || defined( __x86_64__) ) && __SIZEOF_LONG__ == 4 ) )
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long lo, hi;
asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
return( lo );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __i386__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && ( defined(__amd64__) || defined(__x86_64__) )
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long lo, hi;
asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
return( lo | ( hi << 32 ) );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && ( __amd64__ || __x86_64__ ) */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && ( defined(__powerpc__) || defined(__ppc__) )
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tbl, tbu0, tbu1;
do
{
asm volatile( "mftbu %0" : "=r" (tbu0) );
asm volatile( "mftb %0" : "=r" (tbl ) );
asm volatile( "mftbu %0" : "=r" (tbu1) );
}
while( tbu0 != tbu1 );
return( tbl );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && ( __powerpc__ || __ppc__ ) */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__sparc64__)
#if defined(__OpenBSD__)
#warning OpenBSD does not allow access to tick register using software version instead
#else
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tick;
asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) );
return( tick );
}
#endif /* __OpenBSD__ */
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __sparc64__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tick;
asm volatile( ".byte 0x83, 0x41, 0x00, 0x00" );
asm volatile( "mov %%g1, %0" : "=r" (tick) );
return( tick );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __sparc__ && !__sparc64__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__alpha__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long cc;
asm volatile( "rpcc %0" : "=r" (cc) );
return( cc & 0xFFFFFFFF );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __alpha__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__ia64__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long itc;
asm volatile( "mov %0 = ar.itc" : "=r" (itc) );
return( itc );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __ia64__ */
#if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \
!defined(EFIX64) && !defined(EFI32)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
LARGE_INTEGER offset;
QueryPerformanceCounter( &offset );
return( (unsigned long)( offset.QuadPart ) );
}
#endif /* !HAVE_HARDCLOCK && _MSC_VER && !EFIX64 && !EFI32 */
#if !defined(HAVE_HARDCLOCK)
#define HAVE_HARDCLOCK
static int hardclock_init = 0;
static struct timeval tv_init;
unsigned long mbedtls_timing_hardclock( void )
{
struct timeval tv_cur;
if( hardclock_init == 0 )
{
gettimeofday( &tv_init, NULL );
hardclock_init = 1;
}
gettimeofday( &tv_cur, NULL );
return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000
+ ( tv_cur.tv_usec - tv_init.tv_usec ) );
}
#endif /* !HAVE_HARDCLOCK */
volatile int mbedtls_timing_alarmed = 0;
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset )
{
struct _hr_time *t = (struct _hr_time *) val;
if( reset )
{
QueryPerformanceCounter( &t->start );
return( 0 );
}
else
{
unsigned long delta;
LARGE_INTEGER now, hfreq;
QueryPerformanceCounter( &now );
QueryPerformanceFrequency( &hfreq );
delta = (unsigned long)( ( now.QuadPart - t->start.QuadPart ) * 1000ul
/ hfreq.QuadPart );
return( delta );
}
}
/* It's OK to use a global because alarm() is supposed to be global anyway */
static DWORD alarmMs;
static void TimerProc( void *TimerContext )
{
(void) TimerContext;
Sleep( alarmMs );
mbedtls_timing_alarmed = 1;
/* _endthread will be called implicitly on return
* That ensures execution of thread funcition's epilogue */
}
void mbedtls_set_alarm( int seconds )
{
if( seconds == 0 )
{
/* No need to create a thread for this simple case.
* Also, this shorcut is more reliable at least on MinGW32 */
mbedtls_timing_alarmed = 1;
return;
}
mbedtls_timing_alarmed = 0;
alarmMs = seconds * 1000;
(void) _beginthread( TimerProc, 0, NULL );
}
#else /* _WIN32 && !EFIX64 && !EFI32 */
unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset )
{
struct _hr_time *t = (struct _hr_time *) val;
if( reset )
{
gettimeofday( &t->start, NULL );
return( 0 );
}
else
{
unsigned long delta;
struct timeval now;
gettimeofday( &now, NULL );
delta = ( now.tv_sec - t->start.tv_sec ) * 1000ul
+ ( now.tv_usec - t->start.tv_usec ) / 1000;
return( delta );
}
}
static void sighandler( int signum )
{
mbedtls_timing_alarmed = 1;
signal( signum, sighandler );
}
void mbedtls_set_alarm( int seconds )
{
mbedtls_timing_alarmed = 0;
signal( SIGALRM, sighandler );
alarm( seconds );
if( seconds == 0 )
{
/* alarm(0) cancelled any previous pending alarm, but the
handler won't fire, so raise the flag straight away. */
mbedtls_timing_alarmed = 1;
}
}
#endif /* _WIN32 && !EFIX64 && !EFI32 */
/*
* Set delays to watch
*/
void mbedtls_timing_set_delay( void *data, uint32_t int_ms, uint32_t fin_ms )
{
mbedtls_timing_delay_context *ctx = (mbedtls_timing_delay_context *) data;
ctx->int_ms = int_ms;
ctx->fin_ms = fin_ms;
if( fin_ms != 0 )
(void) mbedtls_timing_get_timer( &ctx->timer, 1 );
}
/*
* Get number of delays expired
*/
int mbedtls_timing_get_delay( void *data )
{
mbedtls_timing_delay_context *ctx = (mbedtls_timing_delay_context *) data;
unsigned long elapsed_ms;
if( ctx->fin_ms == 0 )
return( -1 );
elapsed_ms = mbedtls_timing_get_timer( &ctx->timer, 0 );
if( elapsed_ms >= ctx->fin_ms )
return( 2 );
if( elapsed_ms >= ctx->int_ms )
return( 1 );
return( 0 );
}
#endif /* !MBEDTLS_TIMING_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* Busy-waits for the given number of milliseconds.
* Used for testing mbedtls_timing_hardclock.
*/
static void busy_msleep( unsigned long msec )
{
struct mbedtls_timing_hr_time hires;
unsigned long i = 0; /* for busy-waiting */
volatile unsigned long j; /* to prevent optimisation */
(void) mbedtls_timing_get_timer( &hires, 1 );
while( mbedtls_timing_get_timer( &hires, 0 ) < msec )
i++;
j = i;
(void) j;
}
#define FAIL do \
{ \
if( verbose != 0 ) \
{ \
mbedtls_printf( "failed at line %d\n", __LINE__ ); \
mbedtls_printf( " cycles=%lu ratio=%lu millisecs=%lu secs=%lu hardfail=%d a=%lu b=%lu\n", \
cycles, ratio, millisecs, secs, hardfail, \
(unsigned long) a, (unsigned long) b ); \
mbedtls_printf( " elapsed(hires)=%lu elapsed(ctx)=%lu status(ctx)=%d\n", \
mbedtls_timing_get_timer( &hires, 0 ), \
mbedtls_timing_get_timer( &ctx.timer, 0 ), \
mbedtls_timing_get_delay( &ctx ) ); \
} \
return( 1 ); \
} while( 0 )
/*
* Checkup routine
*
* Warning: this is work in progress, some tests may not be reliable enough
* yet! False positives may happen.
*/
int mbedtls_timing_self_test( int verbose )
{
unsigned long cycles = 0, ratio = 0;
unsigned long millisecs = 0, secs = 0;
int hardfail = 0;
struct mbedtls_timing_hr_time hires;
uint32_t a = 0, b = 0;
mbedtls_timing_delay_context ctx;
if( verbose != 0 )
mbedtls_printf( " TIMING tests note: will take some time!\n" );
if( verbose != 0 )
mbedtls_printf( " TIMING test #1 (set_alarm / get_timer): " );
{
secs = 1;
(void) mbedtls_timing_get_timer( &hires, 1 );
mbedtls_set_alarm( (int) secs );
while( !mbedtls_timing_alarmed )
;
millisecs = mbedtls_timing_get_timer( &hires, 0 );
/* For some reason on Windows it looks like alarm has an extra delay
* (maybe related to creating a new thread). Allow some room here. */
if( millisecs < 800 * secs || millisecs > 1200 * secs + 300 )
FAIL;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " TIMING test #2 (set/get_delay ): " );
{
a = 800;
b = 400;
mbedtls_timing_set_delay( &ctx, a, a + b ); /* T = 0 */
busy_msleep( a - a / 4 ); /* T = a - a/4 */
if( mbedtls_timing_get_delay( &ctx ) != 0 )
FAIL;
busy_msleep( a / 4 + b / 4 ); /* T = a + b/4 */
if( mbedtls_timing_get_delay( &ctx ) != 1 )
FAIL;
busy_msleep( b ); /* T = a + b + b/4 */
if( mbedtls_timing_get_delay( &ctx ) != 2 )
FAIL;
}
mbedtls_timing_set_delay( &ctx, 0, 0 );
busy_msleep( 200 );
if( mbedtls_timing_get_delay( &ctx ) != -1 )
FAIL;
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " TIMING test #3 (hardclock / get_timer): " );
/*
* Allow one failure for possible counter wrapping.
* On a 4Ghz 32-bit machine the cycle counter wraps about once per second;
* since the whole test is about 10ms, it shouldn't happen twice in a row.
*/
hard_test:
if( hardfail > 1 )
{
if( verbose != 0 )
mbedtls_printf( "failed (ignored)\n" );
goto hard_test_done;
}
/* Get a reference ratio cycles/ms */
millisecs = 1;
cycles = mbedtls_timing_hardclock();
busy_msleep( millisecs );
cycles = mbedtls_timing_hardclock() - cycles;
ratio = cycles / millisecs;
/* Check that the ratio is mostly constant */
for( millisecs = 2; millisecs <= 4; millisecs++ )
{
cycles = mbedtls_timing_hardclock();
busy_msleep( millisecs );
cycles = mbedtls_timing_hardclock() - cycles;
/* Allow variation up to 20% */
if( cycles / millisecs < ratio - ratio / 5 ||
cycles / millisecs > ratio + ratio / 5 )
{
hardfail++;
goto hard_test;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
hard_test_done:
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_TIMING_C */

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@@ -1,44 +0,0 @@
/*
* Version information
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_VERSION_C)
#include "mbedtls/version.h"
#include <string.h>
unsigned int mbedtls_version_get_number( void )
{
return( MBEDTLS_VERSION_NUMBER );
}
void mbedtls_version_get_string( char *string )
{
memcpy( string, MBEDTLS_VERSION_STRING,
sizeof( MBEDTLS_VERSION_STRING ) );
}
void mbedtls_version_get_string_full( char *string )
{
memcpy( string, MBEDTLS_VERSION_STRING_FULL,
sizeof( MBEDTLS_VERSION_STRING_FULL ) );
}
#endif /* MBEDTLS_VERSION_C */

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@@ -1,374 +0,0 @@
/*
* X.509 base functions for creating certificates / CSRs
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_X509_CREATE_C)
#include "mbedtls/x509.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/error.h"
#include "mbedtls/oid.h"
#include <string.h>
/* Structure linking OIDs for X.509 DN AttributeTypes to their
* string representations and default string encodings used by Mbed TLS. */
typedef struct {
const char *name; /* String representation of AttributeType, e.g.
* "CN" or "emailAddress". */
size_t name_len; /* Length of 'name', without trailing 0 byte. */
const char *oid; /* String representation of OID of AttributeType,
* as per RFC 5280, Appendix A.1. */
int default_tag; /* The default character encoding used for the
* given attribute type, e.g.
* MBEDTLS_ASN1_UTF8_STRING for UTF-8. */
} x509_attr_descriptor_t;
#define ADD_STRLEN( s ) s, sizeof( s ) - 1
/* X.509 DN attributes from RFC 5280, Appendix A.1. */
static const x509_attr_descriptor_t x509_attrs[] =
{
{ ADD_STRLEN( "CN" ),
MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "commonName" ),
MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "C" ),
MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "countryName" ),
MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "O" ),
MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "organizationName" ),
MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "L" ),
MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "locality" ),
MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "R" ),
MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING },
{ ADD_STRLEN( "OU" ),
MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "organizationalUnitName" ),
MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "ST" ),
MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "stateOrProvinceName" ),
MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "emailAddress" ),
MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING },
{ ADD_STRLEN( "serialNumber" ),
MBEDTLS_OID_AT_SERIAL_NUMBER, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "postalAddress" ),
MBEDTLS_OID_AT_POSTAL_ADDRESS, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "postalCode" ),
MBEDTLS_OID_AT_POSTAL_CODE, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "dnQualifier" ),
MBEDTLS_OID_AT_DN_QUALIFIER, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "title" ),
MBEDTLS_OID_AT_TITLE, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "surName" ),
MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "SN" ),
MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "givenName" ),
MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "GN" ),
MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "initials" ),
MBEDTLS_OID_AT_INITIALS, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "pseudonym" ),
MBEDTLS_OID_AT_PSEUDONYM, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "generationQualifier" ),
MBEDTLS_OID_AT_GENERATION_QUALIFIER, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "domainComponent" ),
MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING },
{ ADD_STRLEN( "DC" ),
MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING },
{ NULL, 0, NULL, MBEDTLS_ASN1_NULL }
};
static const x509_attr_descriptor_t *x509_attr_descr_from_name( const char *name, size_t name_len )
{
const x509_attr_descriptor_t *cur;
for( cur = x509_attrs; cur->name != NULL; cur++ )
if( cur->name_len == name_len &&
strncmp( cur->name, name, name_len ) == 0 )
break;
if ( cur->name == NULL )
return( NULL );
return( cur );
}
int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name )
{
int ret = 0;
const char *s = name, *c = s;
const char *end = s + strlen( s );
const char *oid = NULL;
const x509_attr_descriptor_t* attr_descr = NULL;
int in_tag = 1;
char data[MBEDTLS_X509_MAX_DN_NAME_SIZE];
char *d = data;
/* Clear existing chain if present */
mbedtls_asn1_free_named_data_list( head );
while( c <= end )
{
if( in_tag && *c == '=' )
{
if( ( attr_descr = x509_attr_descr_from_name( s, c - s ) ) == NULL )
{
ret = MBEDTLS_ERR_X509_UNKNOWN_OID;
goto exit;
}
oid = attr_descr->oid;
s = c + 1;
in_tag = 0;
d = data;
}
if( !in_tag && *c == '\\' && c != end )
{
c++;
/* Check for valid escaped characters */
if( c == end || *c != ',' )
{
ret = MBEDTLS_ERR_X509_INVALID_NAME;
goto exit;
}
}
else if( !in_tag && ( *c == ',' || c == end ) )
{
mbedtls_asn1_named_data* cur =
mbedtls_asn1_store_named_data( head, oid, strlen( oid ),
(unsigned char *) data,
d - data );
if(cur == NULL )
{
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
// set tagType
cur->val.tag = attr_descr->default_tag;
while( c < end && *(c + 1) == ' ' )
c++;
s = c + 1;
in_tag = 1;
}
if( !in_tag && s != c + 1 )
{
*(d++) = *c;
if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE )
{
ret = MBEDTLS_ERR_X509_INVALID_NAME;
goto exit;
}
}
c++;
}
exit:
return( ret );
}
/* The first byte of the value in the mbedtls_asn1_named_data structure is reserved
* to store the critical boolean for us
*/
int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
int critical, const unsigned char *val, size_t val_len )
{
mbedtls_asn1_named_data *cur;
if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len,
NULL, val_len + 1 ) ) == NULL )
{
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
cur->val.p[0] = critical;
memcpy( cur->val.p + 1, val, val_len );
return( 0 );
}
/*
* RelativeDistinguishedName ::=
* SET OF AttributeTypeAndValue
*
* AttributeTypeAndValue ::= SEQUENCE {
* type AttributeType,
* value AttributeValue }
*
* AttributeType ::= OBJECT IDENTIFIER
*
* AttributeValue ::= ANY DEFINED BY AttributeType
*/
static int x509_write_name( unsigned char **p, unsigned char *start, mbedtls_asn1_named_data* cur_name)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
const char *oid = (const char*)cur_name->oid.p;
size_t oid_len = cur_name->oid.len;
const unsigned char *name = cur_name->val.p;
size_t name_len = cur_name->val.len;
// Write correct string tag and value
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tagged_string( p, start,
cur_name->val.tag,
(const char *) name,
name_len ) );
// Write OID
//
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid,
oid_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET ) );
return( (int) len );
}
int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
mbedtls_asn1_named_data *first )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
mbedtls_asn1_named_data *cur = first;
while( cur != NULL )
{
MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, cur ) );
cur = cur->next;
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len,
unsigned char *sig, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
if( *p < start || (size_t)( *p - start ) < size )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len = size;
(*p) -= len;
memcpy( *p, sig, len );
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = 0;
len += 1;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
// Write OID
//
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid,
oid_len, 0 ) );
return( (int) len );
}
static int x509_write_extension( unsigned char **p, unsigned char *start,
mbedtls_asn1_named_data *ext )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1,
ext->val.len - 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
if( ext->val.p[0] != 0 )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p,
ext->oid.len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
/*
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING
* -- contains the DER encoding of an ASN.1 value
* -- corresponding to the extension type identified
* -- by extnID
* }
*/
int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
mbedtls_asn1_named_data *first )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
mbedtls_asn1_named_data *cur_ext = first;
while( cur_ext != NULL )
{
MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) );
cur_ext = cur_ext->next;
}
return( (int) len );
}
#endif /* MBEDTLS_X509_CREATE_C */

View File

@@ -1,768 +0,0 @@
/*
* X.509 Certidicate Revocation List (CRL) parsing
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The ITU-T X.509 standard defines a certificate format for PKI.
*
* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
*
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
*/
#include "common.h"
#if defined(MBEDTLS_X509_CRL_PARSE_C)
#include "mbedtls/x509_crl.h"
#include "mbedtls/error.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_free free
#define mbedtls_calloc calloc
#define mbedtls_snprintf snprintf
#endif
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#include <windows.h>
#else
#include <time.h>
#endif
#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
#include <stdio.h>
#endif
/*
* Version ::= INTEGER { v1(0), v2(1) }
*/
static int x509_crl_get_version( unsigned char **p,
const unsigned char *end,
int *ver )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
*ver = 0;
return( 0 );
}
return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
}
return( 0 );
}
/*
* X.509 CRL v2 extensions
*
* We currently don't parse any extension's content, but we do check that the
* list of extensions is well-formed and abort on critical extensions (that
* are unsupported as we don't support any extension so far)
*/
static int x509_get_crl_ext( unsigned char **p,
const unsigned char *end,
mbedtls_x509_buf *ext )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( *p == end )
return( 0 );
/*
* crlExtensions [0] EXPLICIT Extensions OPTIONAL
* -- if present, version MUST be v2
*/
if( ( ret = mbedtls_x509_get_ext( p, end, ext, 0 ) ) != 0 )
return( ret );
end = ext->p + ext->len;
while( *p < end )
{
/*
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING }
*/
int is_critical = 0;
const unsigned char *end_ext_data;
size_t len;
/* Get enclosing sequence tag */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
end_ext_data = *p + len;
/* Get OID (currently ignored) */
if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
MBEDTLS_ASN1_OID ) ) != 0 )
{
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
}
*p += len;
/* Get optional critical */
if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data,
&is_critical ) ) != 0 &&
( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
{
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
}
/* Data should be octet string type */
if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
/* Ignore data so far and just check its length */
*p += len;
if( *p != end_ext_data )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
/* Abort on (unsupported) critical extensions */
if( is_critical )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
}
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* X.509 CRL v2 entry extensions (no extensions parsed yet.)
*/
static int x509_get_crl_entry_ext( unsigned char **p,
const unsigned char *end,
mbedtls_x509_buf *ext )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
/* OPTIONAL */
if( end <= *p )
return( 0 );
ext->tag = **p;
ext->p = *p;
/*
* Get CRL-entry extension sequence header
* crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2
*/
if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
ext->p = NULL;
return( 0 );
}
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
}
end = *p + ext->len;
if( end != *p + ext->len )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
while( *p < end )
{
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
*p += len;
}
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* X.509 CRL Entries
*/
static int x509_get_entries( unsigned char **p,
const unsigned char *end,
mbedtls_x509_crl_entry *entry )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t entry_len;
mbedtls_x509_crl_entry *cur_entry = entry;
if( *p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_tag( p, end, &entry_len,
MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( 0 );
return( ret );
}
end = *p + entry_len;
while( *p < end )
{
size_t len2;
const unsigned char *end2;
cur_entry->raw.tag = **p;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len2,
MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 )
{
return( ret );
}
cur_entry->raw.p = *p;
cur_entry->raw.len = len2;
end2 = *p + len2;
if( ( ret = mbedtls_x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 )
return( ret );
if( ( ret = mbedtls_x509_get_time( p, end2,
&cur_entry->revocation_date ) ) != 0 )
return( ret );
if( ( ret = x509_get_crl_entry_ext( p, end2,
&cur_entry->entry_ext ) ) != 0 )
return( ret );
if( *p < end )
{
cur_entry->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl_entry ) );
if( cur_entry->next == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
cur_entry = cur_entry->next;
}
}
return( 0 );
}
/*
* Parse one CRLs in DER format and append it to the chained list
*/
int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain,
const unsigned char *buf, size_t buflen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
unsigned char *p = NULL, *end = NULL;
mbedtls_x509_buf sig_params1, sig_params2, sig_oid2;
mbedtls_x509_crl *crl = chain;
/*
* Check for valid input
*/
if( crl == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) );
memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) );
memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) );
/*
* Add new CRL on the end of the chain if needed.
*/
while( crl->version != 0 && crl->next != NULL )
crl = crl->next;
if( crl->version != 0 && crl->next == NULL )
{
crl->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) );
if( crl->next == NULL )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
mbedtls_x509_crl_init( crl->next );
crl = crl->next;
}
/*
* Copy raw DER-encoded CRL
*/
if( buflen == 0 )
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
p = mbedtls_calloc( 1, buflen );
if( p == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
memcpy( p, buf, buflen );
crl->raw.p = p;
crl->raw.len = buflen;
end = p + buflen;
/*
* CertificateList ::= SEQUENCE {
* tbsCertList TBSCertList,
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
}
if( len != (size_t) ( end - p ) )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
/*
* TBSCertList ::= SEQUENCE {
*/
crl->tbs.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
end = p + len;
crl->tbs.len = end - crl->tbs.p;
/*
* Version ::= INTEGER OPTIONAL { v1(0), v2(1) }
* -- if present, MUST be v2
*
* signature AlgorithmIdentifier
*/
if( ( ret = x509_crl_get_version( &p, end, &crl->version ) ) != 0 ||
( ret = mbedtls_x509_get_alg( &p, end, &crl->sig_oid, &sig_params1 ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( crl->version < 0 || crl->version > 1 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
}
crl->version++;
if( ( ret = mbedtls_x509_get_sig_alg( &crl->sig_oid, &sig_params1,
&crl->sig_md, &crl->sig_pk,
&crl->sig_opts ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG );
}
/*
* issuer Name
*/
crl->issuer_raw.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
if( ( ret = mbedtls_x509_get_name( &p, p + len, &crl->issuer ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
crl->issuer_raw.len = p - crl->issuer_raw.p;
/*
* thisUpdate Time
* nextUpdate Time OPTIONAL
*/
if( ( ret = mbedtls_x509_get_time( &p, end, &crl->this_update ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( ( ret = mbedtls_x509_get_time( &p, end, &crl->next_update ) ) != 0 )
{
if( ret != ( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) &&
ret != ( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_OUT_OF_DATA ) )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
}
/*
* revokedCertificates SEQUENCE OF SEQUENCE {
* userCertificate CertificateSerialNumber,
* revocationDate Time,
* crlEntryExtensions Extensions OPTIONAL
* -- if present, MUST be v2
* } OPTIONAL
*/
if( ( ret = x509_get_entries( &p, end, &crl->entry ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
/*
* crlExtensions EXPLICIT Extensions OPTIONAL
* -- if present, MUST be v2
*/
if( crl->version == 2 )
{
ret = x509_get_crl_ext( &p, end, &crl->crl_ext );
if( ret != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
}
if( p != end )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
end = crl->raw.p + crl->raw.len;
/*
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING
*/
if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( crl->sig_oid.len != sig_oid2.len ||
memcmp( crl->sig_oid.p, sig_oid2.p, crl->sig_oid.len ) != 0 ||
sig_params1.len != sig_params2.len ||
( sig_params1.len != 0 &&
memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_SIG_MISMATCH );
}
if( ( ret = mbedtls_x509_get_sig( &p, end, &crl->sig ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( p != end )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
return( 0 );
}
/*
* Parse one or more CRLs and add them to the chained list
*/
int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen )
{
#if defined(MBEDTLS_PEM_PARSE_C)
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t use_len = 0;
mbedtls_pem_context pem;
int is_pem = 0;
if( chain == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
do
{
mbedtls_pem_init( &pem );
// Avoid calling mbedtls_pem_read_buffer() on non-null-terminated
// string
if( buflen == 0 || buf[buflen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN X509 CRL-----",
"-----END X509 CRL-----",
buf, NULL, 0, &use_len );
if( ret == 0 )
{
/*
* Was PEM encoded
*/
is_pem = 1;
buflen -= use_len;
buf += use_len;
if( ( ret = mbedtls_x509_crl_parse_der( chain,
pem.buf, pem.buflen ) ) != 0 )
{
mbedtls_pem_free( &pem );
return( ret );
}
}
else if( is_pem )
{
mbedtls_pem_free( &pem );
return( ret );
}
mbedtls_pem_free( &pem );
}
/* In the PEM case, buflen is 1 at the end, for the terminated NULL byte.
* And a valid CRL cannot be less than 1 byte anyway. */
while( is_pem && buflen > 1 );
if( is_pem )
return( 0 );
else
#endif /* MBEDTLS_PEM_PARSE_C */
return( mbedtls_x509_crl_parse_der( chain, buf, buflen ) );
}
#if defined(MBEDTLS_FS_IO)
/*
* Load one or more CRLs and add them to the chained list
*/
int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t n;
unsigned char *buf;
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_x509_crl_parse( chain, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
/*
* Return an informational string about the certificate.
*/
#define BEFORE_COLON 14
#define BC "14"
/*
* Return an informational string about the CRL.
*/
int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_crl *crl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t n;
char *p;
const mbedtls_x509_crl_entry *entry;
p = buf;
n = size;
ret = mbedtls_snprintf( p, n, "%sCRL version : %d",
prefix, crl->version );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_dn_gets( p, n, &crl->issuer );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sthis update : " \
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
crl->this_update.year, crl->this_update.mon,
crl->this_update.day, crl->this_update.hour,
crl->this_update.min, crl->this_update.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%snext update : " \
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
crl->next_update.year, crl->next_update.mon,
crl->next_update.day, crl->next_update.hour,
crl->next_update.min, crl->next_update.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
entry = &crl->entry;
ret = mbedtls_snprintf( p, n, "\n%sRevoked certificates:",
prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
while( entry != NULL && entry->raw.len != 0 )
{
ret = mbedtls_snprintf( p, n, "\n%sserial number: ",
prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_serial_gets( p, n, &entry->serial );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, " revocation date: " \
"%04d-%02d-%02d %02d:%02d:%02d",
entry->revocation_date.year, entry->revocation_date.mon,
entry->revocation_date.day, entry->revocation_date.hour,
entry->revocation_date.min, entry->revocation_date.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
entry = entry->next;
}
ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_sig_alg_gets( p, n, &crl->sig_oid, crl->sig_pk, crl->sig_md,
crl->sig_opts );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n" );
MBEDTLS_X509_SAFE_SNPRINTF;
return( (int) ( size - n ) );
}
/*
* Initialize a CRL chain
*/
void mbedtls_x509_crl_init( mbedtls_x509_crl *crl )
{
memset( crl, 0, sizeof(mbedtls_x509_crl) );
}
/*
* Unallocate all CRL data
*/
void mbedtls_x509_crl_free( mbedtls_x509_crl *crl )
{
mbedtls_x509_crl *crl_cur = crl;
mbedtls_x509_crl *crl_prv;
mbedtls_x509_name *name_cur;
mbedtls_x509_name *name_prv;
mbedtls_x509_crl_entry *entry_cur;
mbedtls_x509_crl_entry *entry_prv;
if( crl == NULL )
return;
do
{
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
mbedtls_free( crl_cur->sig_opts );
#endif
name_cur = crl_cur->issuer.next;
while( name_cur != NULL )
{
name_prv = name_cur;
name_cur = name_cur->next;
mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
mbedtls_free( name_prv );
}
entry_cur = crl_cur->entry.next;
while( entry_cur != NULL )
{
entry_prv = entry_cur;
entry_cur = entry_cur->next;
mbedtls_platform_zeroize( entry_prv,
sizeof( mbedtls_x509_crl_entry ) );
mbedtls_free( entry_prv );
}
if( crl_cur->raw.p != NULL )
{
mbedtls_platform_zeroize( crl_cur->raw.p, crl_cur->raw.len );
mbedtls_free( crl_cur->raw.p );
}
crl_cur = crl_cur->next;
}
while( crl_cur != NULL );
crl_cur = crl;
do
{
crl_prv = crl_cur;
crl_cur = crl_cur->next;
mbedtls_platform_zeroize( crl_prv, sizeof( mbedtls_x509_crl ) );
if( crl_prv != crl )
mbedtls_free( crl_prv );
}
while( crl_cur != NULL );
}
#endif /* MBEDTLS_X509_CRL_PARSE_C */

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@@ -1,414 +0,0 @@
/*
* X.509 Certificate Signing Request (CSR) parsing
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* The ITU-T X.509 standard defines a certificate format for PKI.
*
* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
*
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
*/
#include "common.h"
#if defined(MBEDTLS_X509_CSR_PARSE_C)
#include "mbedtls/x509_csr.h"
#include "mbedtls/error.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_free free
#define mbedtls_calloc calloc
#define mbedtls_snprintf snprintf
#endif
#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
#include <stdio.h>
#endif
/*
* Version ::= INTEGER { v1(0) }
*/
static int x509_csr_get_version( unsigned char **p,
const unsigned char *end,
int *ver )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
*ver = 0;
return( 0 );
}
return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
}
return( 0 );
}
/*
* Parse a CSR in DER format
*/
int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr,
const unsigned char *buf, size_t buflen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len;
unsigned char *p, *end;
mbedtls_x509_buf sig_params;
memset( &sig_params, 0, sizeof( mbedtls_x509_buf ) );
/*
* Check for valid input
*/
if( csr == NULL || buf == NULL || buflen == 0 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
mbedtls_x509_csr_init( csr );
/*
* first copy the raw DER data
*/
p = mbedtls_calloc( 1, len = buflen );
if( p == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
memcpy( p, buf, buflen );
csr->raw.p = p;
csr->raw.len = len;
end = p + len;
/*
* CertificationRequest ::= SEQUENCE {
* certificationRequestInfo CertificationRequestInfo,
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
}
if( len != (size_t) ( end - p ) )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
/*
* CertificationRequestInfo ::= SEQUENCE {
*/
csr->cri.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
end = p + len;
csr->cri.len = end - csr->cri.p;
/*
* Version ::= INTEGER { v1(0) }
*/
if( ( ret = x509_csr_get_version( &p, end, &csr->version ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
if( csr->version != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
}
csr->version++;
/*
* subject Name
*/
csr->subject_raw.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
if( ( ret = mbedtls_x509_get_name( &p, p + len, &csr->subject ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
csr->subject_raw.len = p - csr->subject_raw.p;
/*
* subjectPKInfo SubjectPublicKeyInfo
*/
if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &csr->pk ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
/*
* attributes [0] Attributes
*
* The list of possible attributes is open-ended, though RFC 2985
* (PKCS#9) defines a few in section 5.4. We currently don't support any,
* so we just ignore them. This is a safe thing to do as the worst thing
* that could happen is that we issue a certificate that does not match
* the requester's expectations - this cannot cause a violation of our
* signature policies.
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
p += len;
end = csr->raw.p + csr->raw.len;
/*
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING
*/
if( ( ret = mbedtls_x509_get_alg( &p, end, &csr->sig_oid, &sig_params ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
if( ( ret = mbedtls_x509_get_sig_alg( &csr->sig_oid, &sig_params,
&csr->sig_md, &csr->sig_pk,
&csr->sig_opts ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG );
}
if( ( ret = mbedtls_x509_get_sig( &p, end, &csr->sig ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
if( p != end )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
return( 0 );
}
/*
* Parse a CSR, allowing for PEM or raw DER encoding
*/
int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen )
{
#if defined(MBEDTLS_PEM_PARSE_C)
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t use_len;
mbedtls_pem_context pem;
#endif
/*
* Check for valid input
*/
if( csr == NULL || buf == NULL || buflen == 0 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
#if defined(MBEDTLS_PEM_PARSE_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( buf[buflen - 1] == '\0' )
{
mbedtls_pem_init( &pem );
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN CERTIFICATE REQUEST-----",
"-----END CERTIFICATE REQUEST-----",
buf, NULL, 0, &use_len );
if( ret == MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN NEW CERTIFICATE REQUEST-----",
"-----END NEW CERTIFICATE REQUEST-----",
buf, NULL, 0, &use_len );
}
if( ret == 0 )
{
/*
* Was PEM encoded, parse the result
*/
ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen );
}
mbedtls_pem_free( &pem );
if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
}
#endif /* MBEDTLS_PEM_PARSE_C */
return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) );
}
#if defined(MBEDTLS_FS_IO)
/*
* Load a CSR into the structure
*/
int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t n;
unsigned char *buf;
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_x509_csr_parse( csr, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
#define BEFORE_COLON 14
#define BC "14"
/*
* Return an informational string about the CSR.
*/
int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_csr *csr )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t n;
char *p;
char key_size_str[BEFORE_COLON];
p = buf;
n = size;
ret = mbedtls_snprintf( p, n, "%sCSR version : %d",
prefix, csr->version );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_dn_gets( p, n, &csr->subject );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_sig_alg_gets( p, n, &csr->sig_oid, csr->sig_pk, csr->sig_md,
csr->sig_opts );
MBEDTLS_X509_SAFE_SNPRINTF;
if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON,
mbedtls_pk_get_name( &csr->pk ) ) ) != 0 )
{
return( ret );
}
ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits\n", prefix, key_size_str,
(int) mbedtls_pk_get_bitlen( &csr->pk ) );
MBEDTLS_X509_SAFE_SNPRINTF;
return( (int) ( size - n ) );
}
/*
* Initialize a CSR
*/
void mbedtls_x509_csr_init( mbedtls_x509_csr *csr )
{
memset( csr, 0, sizeof(mbedtls_x509_csr) );
}
/*
* Unallocate all CSR data
*/
void mbedtls_x509_csr_free( mbedtls_x509_csr *csr )
{
mbedtls_x509_name *name_cur;
mbedtls_x509_name *name_prv;
if( csr == NULL )
return;
mbedtls_pk_free( &csr->pk );
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
mbedtls_free( csr->sig_opts );
#endif
name_cur = csr->subject.next;
while( name_cur != NULL )
{
name_prv = name_cur;
name_cur = name_cur->next;
mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
mbedtls_free( name_prv );
}
if( csr->raw.p != NULL )
{
mbedtls_platform_zeroize( csr->raw.p, csr->raw.len );
mbedtls_free( csr->raw.p );
}
mbedtls_platform_zeroize( csr, sizeof( mbedtls_x509_csr ) );
}
#endif /* MBEDTLS_X509_CSR_PARSE_C */

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@@ -1,544 +0,0 @@
/*
* X.509 certificate writing
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* References:
* - certificates: RFC 5280, updated by RFC 6818
* - CSRs: PKCS#10 v1.7 aka RFC 2986
* - attributes: PKCS#9 v2.0 aka RFC 2985
*/
#include "common.h"
#if defined(MBEDTLS_X509_CRT_WRITE_C)
#include "mbedtls/x509_crt.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/error.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include "mbedtls/sha1.h"
#include <string.h>
#if defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif /* MBEDTLS_PEM_WRITE_C */
void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx )
{
memset( ctx, 0, sizeof( mbedtls_x509write_cert ) );
mbedtls_mpi_init( &ctx->serial );
ctx->version = MBEDTLS_X509_CRT_VERSION_3;
}
void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx )
{
mbedtls_mpi_free( &ctx->serial );
mbedtls_asn1_free_named_data_list( &ctx->subject );
mbedtls_asn1_free_named_data_list( &ctx->issuer );
mbedtls_asn1_free_named_data_list( &ctx->extensions );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_cert ) );
}
void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx,
int version )
{
ctx->version = version;
}
void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx,
mbedtls_md_type_t md_alg )
{
ctx->md_alg = md_alg;
}
void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx,
mbedtls_pk_context *key )
{
ctx->subject_key = key;
}
void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx,
mbedtls_pk_context *key )
{
ctx->issuer_key = key;
}
int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx,
const char *subject_name )
{
return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
}
int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx,
const char *issuer_name )
{
return mbedtls_x509_string_to_names( &ctx->issuer, issuer_name );
}
int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx,
const mbedtls_mpi *serial )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if( ( ret = mbedtls_mpi_copy( &ctx->serial, serial ) ) != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx,
const char *not_before,
const char *not_after )
{
if( strlen( not_before ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 ||
strlen( not_after ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 )
{
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
}
strncpy( ctx->not_before, not_before, MBEDTLS_X509_RFC5280_UTC_TIME_LEN );
strncpy( ctx->not_after , not_after , MBEDTLS_X509_RFC5280_UTC_TIME_LEN );
ctx->not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z';
ctx->not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z';
return( 0 );
}
int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx,
const char *oid, size_t oid_len,
int critical,
const unsigned char *val, size_t val_len )
{
return( mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
critical, val, val_len ) );
}
int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx,
int is_ca, int max_pathlen )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char buf[9];
unsigned char *c = buf + sizeof(buf);
size_t len = 0;
memset( buf, 0, sizeof(buf) );
if( is_ca && max_pathlen > 127 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
if( is_ca )
{
if( max_pathlen >= 0 )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf,
max_pathlen ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( &c, buf, 1 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return(
mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS,
MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ),
0, buf + sizeof(buf) - len, len ) );
}
#if defined(MBEDTLS_SHA1_C)
int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */
unsigned char *c = buf + sizeof(buf);
size_t len = 0;
memset( buf, 0, sizeof(buf) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) );
ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
buf + sizeof( buf ) - 20 );
if( ret != 0 )
return( ret );
c = buf + sizeof( buf ) - 20;
len = 20;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) );
return mbedtls_x509write_crt_set_extension( ctx,
MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER,
MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ),
0, buf + sizeof(buf) - len, len );
}
int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */
unsigned char *c = buf + sizeof( buf );
size_t len = 0;
memset( buf, 0, sizeof(buf) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) );
ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
buf + sizeof( buf ) - 20 );
if( ret != 0 )
return( ret );
c = buf + sizeof( buf ) - 20;
len = 20;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return mbedtls_x509write_crt_set_extension(
ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER,
MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ),
0, buf + sizeof( buf ) - len, len );
}
#endif /* MBEDTLS_SHA1_C */
int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx,
unsigned int key_usage )
{
unsigned char buf[5], ku[2];
unsigned char *c;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const unsigned int allowed_bits = MBEDTLS_X509_KU_DIGITAL_SIGNATURE |
MBEDTLS_X509_KU_NON_REPUDIATION |
MBEDTLS_X509_KU_KEY_ENCIPHERMENT |
MBEDTLS_X509_KU_DATA_ENCIPHERMENT |
MBEDTLS_X509_KU_KEY_AGREEMENT |
MBEDTLS_X509_KU_KEY_CERT_SIGN |
MBEDTLS_X509_KU_CRL_SIGN |
MBEDTLS_X509_KU_ENCIPHER_ONLY |
MBEDTLS_X509_KU_DECIPHER_ONLY;
/* Check that nothing other than the allowed flags is set */
if( ( key_usage & ~allowed_bits ) != 0 )
return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE );
c = buf + 5;
ku[0] = (unsigned char)( key_usage );
ku[1] = (unsigned char)( key_usage >> 8 );
ret = mbedtls_asn1_write_named_bitstring( &c, buf, ku, 9 );
if( ret < 0 )
return( ret );
else if( ret < 3 || ret > 5 )
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
1, c, (size_t)ret );
if( ret != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx,
unsigned char ns_cert_type )
{
unsigned char buf[4];
unsigned char *c;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
c = buf + 4;
ret = mbedtls_asn1_write_named_bitstring( &c, buf, &ns_cert_type, 8 );
if( ret < 3 || ret > 4 )
return( ret );
ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
0, c, (size_t)ret );
if( ret != 0 )
return( ret );
return( 0 );
}
static int x509_write_time( unsigned char **p, unsigned char *start,
const char *t, size_t size )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t len = 0;
/*
* write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter)
*/
if( t[0] == '2' && t[1] == '0' && t[2] < '5' )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) t + 2,
size - 2 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_UTC_TIME ) );
}
else
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) t,
size ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_GENERALIZED_TIME ) );
}
return( (int) len );
}
int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx,
unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const char *sig_oid;
size_t sig_oid_len = 0;
unsigned char *c, *c2;
unsigned char hash[64];
unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
size_t sub_len = 0, pub_len = 0, sig_and_oid_len = 0, sig_len;
size_t len = 0;
mbedtls_pk_type_t pk_alg;
/*
* Prepare data to be signed at the end of the target buffer
*/
c = buf + size;
/* Signature algorithm needed in TBS, and later for actual signature */
/* There's no direct way of extracting a signature algorithm
* (represented as an element of mbedtls_pk_type_t) from a PK instance. */
if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_RSA ) )
pk_alg = MBEDTLS_PK_RSA;
else if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_ECDSA ) )
pk_alg = MBEDTLS_PK_ECDSA;
else
return( MBEDTLS_ERR_X509_INVALID_ALG );
if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );
}
/*
* Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
*/
/* Only for v3 */
if( ctx->version == MBEDTLS_X509_CRT_VERSION_3 )
{
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_x509_write_extensions( &c,
buf, ctx->extensions ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONTEXT_SPECIFIC |
MBEDTLS_ASN1_CONSTRUCTED | 3 ) );
}
/*
* SubjectPublicKeyInfo
*/
MBEDTLS_ASN1_CHK_ADD( pub_len,
mbedtls_pk_write_pubkey_der( ctx->subject_key,
buf, c - buf ) );
c -= pub_len;
len += pub_len;
/*
* Subject ::= Name
*/
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_x509_write_names( &c, buf,
ctx->subject ) );
/*
* Validity ::= SEQUENCE {
* notBefore Time,
* notAfter Time }
*/
sub_len = 0;
MBEDTLS_ASN1_CHK_ADD( sub_len,
x509_write_time( &c, buf, ctx->not_after,
MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
MBEDTLS_ASN1_CHK_ADD( sub_len,
x509_write_time( &c, buf, ctx->not_before,
MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
len += sub_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, sub_len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
/*
* Issuer ::= Name
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, buf,
ctx->issuer ) );
/*
* Signature ::= AlgorithmIdentifier
*/
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_algorithm_identifier( &c, buf,
sig_oid, strlen( sig_oid ), 0 ) );
/*
* Serial ::= INTEGER
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf,
&ctx->serial ) );
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
*/
/* Can be omitted for v1 */
if( ctx->version != MBEDTLS_X509_CRT_VERSION_1 )
{
sub_len = 0;
MBEDTLS_ASN1_CHK_ADD( sub_len,
mbedtls_asn1_write_int( &c, buf, ctx->version ) );
len += sub_len;
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_len( &c, buf, sub_len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONTEXT_SPECIFIC |
MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
/*
* Make signature
*/
/* Compute hash of CRT. */
if( ( ret = mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c,
len, hash ) ) != 0 )
{
return( ret );
}
if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg,
hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 )
{
return( ret );
}
/* Move CRT to the front of the buffer to have space
* for the signature. */
memmove( buf, c, len );
c = buf + len;
/* Add signature at the end of the buffer,
* making sure that it doesn't underflow
* into the CRT buffer. */
c2 = buf + size;
MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, c,
sig_oid, sig_oid_len, sig, sig_len ) );
/*
* Memory layout after this step:
*
* buf c=buf+len c2 buf+size
* [CRT0,...,CRTn, UNUSED, ..., UNUSED, SIG0, ..., SIGm]
*/
/* Move raw CRT to just before the signature. */
c = c2 - len;
memmove( c, buf, len );
len += sig_and_oid_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
#define PEM_BEGIN_CRT "-----BEGIN CERTIFICATE-----\n"
#define PEM_END_CRT "-----END CERTIFICATE-----\n"
#if defined(MBEDTLS_PEM_WRITE_C)
int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt,
unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t olen;
if( ( ret = mbedtls_x509write_crt_der( crt, buf, size,
f_rng, p_rng ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CRT, PEM_END_CRT,
buf + size - ret, ret,
buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_X509_CRT_WRITE_C */

View File

@@ -1,341 +0,0 @@
/*
* X.509 Certificate Signing Request writing
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* References:
* - CSRs: PKCS#10 v1.7 aka RFC 2986
* - attributes: PKCS#9 v2.0 aka RFC 2985
*/
#include "common.h"
#if defined(MBEDTLS_X509_CSR_WRITE_C)
#include "mbedtls/x509_csr.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/error.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#if defined(MBEDTLS_USE_PSA_CRYPTO)
#include "psa/crypto.h"
#include "mbedtls/psa_util.h"
#endif
#include <string.h>
#include <stdlib.h>
#if defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx )
{
memset( ctx, 0, sizeof( mbedtls_x509write_csr ) );
}
void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx )
{
mbedtls_asn1_free_named_data_list( &ctx->subject );
mbedtls_asn1_free_named_data_list( &ctx->extensions );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_csr ) );
}
void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg )
{
ctx->md_alg = md_alg;
}
void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key )
{
ctx->key = key;
}
int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx,
const char *subject_name )
{
return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
}
int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx,
const char *oid, size_t oid_len,
const unsigned char *val, size_t val_len )
{
return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
0, val, val_len );
}
int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage )
{
unsigned char buf[4];
unsigned char *c;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
c = buf + 4;
ret = mbedtls_asn1_write_named_bitstring( &c, buf, &key_usage, 8 );
if( ret < 3 || ret > 4 )
return( ret );
ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
c, (size_t)ret );
if( ret != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx,
unsigned char ns_cert_type )
{
unsigned char buf[4];
unsigned char *c;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
c = buf + 4;
ret = mbedtls_asn1_write_named_bitstring( &c, buf, &ns_cert_type, 8 );
if( ret < 3 || ret > 4 )
return( ret );
ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
c, (size_t)ret );
if( ret != 0 )
return( ret );
return( 0 );
}
static int x509write_csr_der_internal( mbedtls_x509write_csr *ctx,
unsigned char *buf,
size_t size,
unsigned char *sig,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
const char *sig_oid;
size_t sig_oid_len = 0;
unsigned char *c, *c2;
unsigned char hash[64];
size_t pub_len = 0, sig_and_oid_len = 0, sig_len;
size_t len = 0;
mbedtls_pk_type_t pk_alg;
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_hash_operation_t hash_operation = PSA_HASH_OPERATION_INIT;
size_t hash_len;
psa_algorithm_t hash_alg = mbedtls_psa_translate_md( ctx->md_alg );
#endif /* MBEDTLS_USE_PSA_CRYPTO */
/* Write the CSR backwards starting from the end of buf */
c = buf + size;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, buf,
ctx->extensions ) );
if( len )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag(
&c, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag(
&c, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SET ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_oid(
&c, buf, MBEDTLS_OID_PKCS9_CSR_EXT_REQ,
MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_CSR_EXT_REQ ) ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag(
&c, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag(
&c, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_CONTEXT_SPECIFIC ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->key,
buf, c - buf ) );
c -= pub_len;
len += pub_len;
/*
* Subject ::= Name
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, buf,
ctx->subject ) );
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag(
&c, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
/*
* Sign the written CSR data into the sig buffer
* Note: hash errors can happen only after an internal error
*/
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if( psa_hash_setup( &hash_operation, hash_alg ) != PSA_SUCCESS )
return( MBEDTLS_ERR_X509_FATAL_ERROR );
if( psa_hash_update( &hash_operation, c, len ) != PSA_SUCCESS )
return( MBEDTLS_ERR_X509_FATAL_ERROR );
if( psa_hash_finish( &hash_operation, hash, sizeof( hash ), &hash_len )
!= PSA_SUCCESS )
{
return( MBEDTLS_ERR_X509_FATAL_ERROR );
}
#else /* MBEDTLS_USE_PSA_CRYPTO */
ret = mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash );
if( ret != 0 )
return( ret );
#endif
if( ( ret = mbedtls_pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 )
{
return( ret );
}
if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_RSA ) )
pk_alg = MBEDTLS_PK_RSA;
else if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_ECDSA ) )
pk_alg = MBEDTLS_PK_ECDSA;
else
return( MBEDTLS_ERR_X509_INVALID_ALG );
if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );
}
/*
* Move the written CSR data to the start of buf to create space for
* writing the signature into buf.
*/
memmove( buf, c, len );
/*
* Write sig and its OID into buf backwards from the end of buf.
* Note: mbedtls_x509_write_sig will check for c2 - ( buf + len ) < sig_len
* and return MBEDTLS_ERR_ASN1_BUF_TOO_SMALL if needed.
*/
c2 = buf + size;
MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len,
mbedtls_x509_write_sig( &c2, buf + len, sig_oid, sig_oid_len,
sig, sig_len ) );
/*
* Compact the space between the CSR data and signature by moving the
* CSR data to the start of the signature.
*/
c2 -= len;
memmove( c2, buf, len );
/* ASN encode the total size and tag the CSR data with it. */
len += sig_and_oid_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len,
mbedtls_asn1_write_tag(
&c2, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
/* Zero the unused bytes at the start of buf */
memset( buf, 0, c2 - buf);
return( (int) len );
}
int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf,
size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
unsigned char *sig;
if( ( sig = mbedtls_calloc( 1, MBEDTLS_PK_SIGNATURE_MAX_SIZE ) ) == NULL )
{
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
ret = x509write_csr_der_internal( ctx, buf, size, sig, f_rng, p_rng );
mbedtls_free( sig );
return( ret );
}
#define PEM_BEGIN_CSR "-----BEGIN CERTIFICATE REQUEST-----\n"
#define PEM_END_CSR "-----END CERTIFICATE REQUEST-----\n"
#if defined(MBEDTLS_PEM_WRITE_C)
int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t olen = 0;
if( ( ret = mbedtls_x509write_csr_der( ctx, buf, size,
f_rng, p_rng ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CSR, PEM_END_CSR,
buf + size - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_X509_CSR_WRITE_C */

View File

@@ -1,271 +0,0 @@
/*
* An 32-bit implementation of the XTEA algorithm
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#if defined(MBEDTLS_XTEA_C)
#include "mbedtls/xtea.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_XTEA_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
void mbedtls_xtea_init( mbedtls_xtea_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_xtea_context ) );
}
void mbedtls_xtea_free( mbedtls_xtea_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_xtea_context ) );
}
/*
* XTEA key schedule
*/
void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] )
{
int i;
memset( ctx, 0, sizeof(mbedtls_xtea_context) );
for( i = 0; i < 4; i++ )
{
GET_UINT32_BE( ctx->k[i], key, i << 2 );
}
}
/*
* XTEA encrypt function
*/
int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx, int mode,
const unsigned char input[8], unsigned char output[8])
{
uint32_t *k, v0, v1, i;
k = ctx->k;
GET_UINT32_BE( v0, input, 0 );
GET_UINT32_BE( v1, input, 4 );
if( mode == MBEDTLS_XTEA_ENCRYPT )
{
uint32_t sum = 0, delta = 0x9E3779B9;
for( i = 0; i < 32; i++ )
{
v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
sum += delta;
v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
}
}
else /* MBEDTLS_XTEA_DECRYPT */
{
uint32_t delta = 0x9E3779B9, sum = delta * 32;
for( i = 0; i < 32; i++ )
{
v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
sum -= delta;
v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
}
}
PUT_UINT32_BE( v0, output, 0 );
PUT_UINT32_BE( v1, output, 4 );
return( 0 );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* XTEA-CBC buffer encryption/decryption
*/
int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, int mode, size_t length,
unsigned char iv[8], const unsigned char *input,
unsigned char *output)
{
int i;
unsigned char temp[8];
if( length % 8 )
return( MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH );
if( mode == MBEDTLS_XTEA_DECRYPT )
{
while( length > 0 )
{
memcpy( temp, input, 8 );
mbedtls_xtea_crypt_ecb( ctx, mode, input, output );
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( output[i] ^ iv[i] );
memcpy( iv, temp, 8 );
input += 8;
output += 8;
length -= 8;
}
}
else
{
while( length > 0 )
{
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedtls_xtea_crypt_ecb( ctx, mode, output, output );
memcpy( iv, output, 8 );
input += 8;
output += 8;
length -= 8;
}
}
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* !MBEDTLS_XTEA_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* XTEA tests vectors (non-official)
*/
static const unsigned char xtea_test_key[6][16] =
{
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f },
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f },
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 }
};
static const unsigned char xtea_test_pt[6][8] =
{
{ 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
{ 0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f },
{ 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
{ 0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55 }
};
static const unsigned char xtea_test_ct[6][8] =
{
{ 0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5 },
{ 0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8 },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
{ 0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5 },
{ 0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }
};
/*
* Checkup routine
*/
int mbedtls_xtea_self_test( int verbose )
{
int i, ret = 0;
unsigned char buf[8];
mbedtls_xtea_context ctx;
mbedtls_xtea_init( &ctx );
for( i = 0; i < 6; i++ )
{
if( verbose != 0 )
mbedtls_printf( " XTEA test #%d: ", i + 1 );
memcpy( buf, xtea_test_pt[i], 8 );
mbedtls_xtea_setup( &ctx, xtea_test_key[i] );
mbedtls_xtea_crypt_ecb( &ctx, MBEDTLS_XTEA_ENCRYPT, buf, buf );
if( memcmp( buf, xtea_test_ct[i], 8 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_xtea_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_XTEA_C */

View File

@@ -1,468 +0,0 @@
/*
* AES-256 file encryption program
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Enable definition of fileno() even when compiling with -std=c99. Must be
* set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#define _POSIX_C_SOURCE 200112L
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_fprintf fprintf
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#include "mbedtls/aes.h"
#include "mbedtls/md.h"
#include "mbedtls/platform_util.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(_WIN32)
#include <windows.h>
#if !defined(_WIN32_WCE)
#include <io.h>
#endif
#else
#include <sys/types.h>
#include <unistd.h>
#endif
#define MODE_ENCRYPT 0
#define MODE_DECRYPT 1
#define USAGE \
"\n aescrypt2 <mode> <input filename> <output filename> <key>\n" \
"\n <mode>: 0 = encrypt, 1 = decrypt\n" \
"\n example: aescrypt2 0 file file.aes hex:E76B2413958B00E193\n" \
"\n"
#if !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_SHA256_C) || \
!defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_MD_C)
int main( void )
{
mbedtls_printf("MBEDTLS_AES_C and/or MBEDTLS_SHA256_C "
"and/or MBEDTLS_FS_IO and/or MBEDTLS_MD_C "
"not defined.\n");
mbedtls_exit( 0 );
}
#else
int main( int argc, char *argv[] )
{
int ret = 0;
int exit_code = MBEDTLS_EXIT_FAILURE;
unsigned int i, n;
int mode, lastn;
size_t keylen;
FILE *fkey, *fin = NULL, *fout = NULL;
char *p;
unsigned char IV[16];
unsigned char tmp[16];
unsigned char key[512];
unsigned char digest[64];
unsigned char buffer[1024];
unsigned char diff;
mbedtls_aes_context aes_ctx;
mbedtls_md_context_t sha_ctx;
#if defined(_WIN32_WCE)
long filesize, offset;
#elif defined(_WIN32)
LARGE_INTEGER li_size;
__int64 filesize, offset;
#else
off_t filesize, offset;
#endif
mbedtls_aes_init( &aes_ctx );
mbedtls_md_init( &sha_ctx );
ret = mbedtls_md_setup( &sha_ctx, mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ), 1 );
if( ret != 0 )
{
mbedtls_printf( " ! mbedtls_md_setup() returned -0x%04x\n", (unsigned int) -ret );
goto exit;
}
/*
* Parse the command-line arguments.
*/
if( argc != 5 )
{
mbedtls_printf( USAGE );
#if defined(_WIN32)
mbedtls_printf( "\n Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
goto exit;
}
mode = atoi( argv[1] );
memset( IV, 0, sizeof( IV ) );
memset( key, 0, sizeof( key ) );
memset( digest, 0, sizeof( digest ) );
memset( buffer, 0, sizeof( buffer ) );
if( mode != MODE_ENCRYPT && mode != MODE_DECRYPT )
{
mbedtls_fprintf( stderr, "invalide operation mode\n" );
goto exit;
}
if( strcmp( argv[2], argv[3] ) == 0 )
{
mbedtls_fprintf( stderr, "input and output filenames must differ\n" );
goto exit;
}
if( ( fin = fopen( argv[2], "rb" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,rb) failed\n", argv[2] );
goto exit;
}
if( ( fout = fopen( argv[3], "wb+" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,wb+) failed\n", argv[3] );
goto exit;
}
/*
* Read the secret key from file or command line
*/
if( ( fkey = fopen( argv[4], "rb" ) ) != NULL )
{
keylen = fread( key, 1, sizeof( key ), fkey );
fclose( fkey );
}
else
{
if( memcmp( argv[4], "hex:", 4 ) == 0 )
{
p = &argv[4][4];
keylen = 0;
while( sscanf( p, "%02X", &n ) > 0 &&
keylen < (int) sizeof( key ) )
{
key[keylen++] = (unsigned char) n;
p += 2;
}
}
else
{
keylen = strlen( argv[4] );
if( keylen > (int) sizeof( key ) )
keylen = (int) sizeof( key );
memcpy( key, argv[4], keylen );
}
}
#if defined(_WIN32_WCE)
filesize = fseek( fin, 0L, SEEK_END );
#else
#if defined(_WIN32)
/*
* Support large files (> 2Gb) on Win32
*/
li_size.QuadPart = 0;
li_size.LowPart =
SetFilePointer( (HANDLE) _get_osfhandle( _fileno( fin ) ),
li_size.LowPart, &li_size.HighPart, FILE_END );
if( li_size.LowPart == 0xFFFFFFFF && GetLastError() != NO_ERROR )
{
mbedtls_fprintf( stderr, "SetFilePointer(0,FILE_END) failed\n" );
goto exit;
}
filesize = li_size.QuadPart;
#else
if( ( filesize = lseek( fileno( fin ), 0, SEEK_END ) ) < 0 )
{
perror( "lseek" );
goto exit;
}
#endif
#endif
if( fseek( fin, 0, SEEK_SET ) < 0 )
{
mbedtls_fprintf( stderr, "fseek(0,SEEK_SET) failed\n" );
goto exit;
}
if( mode == MODE_ENCRYPT )
{
/*
* Generate the initialization vector as:
* IV = SHA-256( filesize || filename )[0..15]
*/
for( i = 0; i < 8; i++ )
buffer[i] = (unsigned char)( filesize >> ( i << 3 ) );
p = argv[2];
mbedtls_md_starts( &sha_ctx );
mbedtls_md_update( &sha_ctx, buffer, 8 );
mbedtls_md_update( &sha_ctx, (unsigned char *) p, strlen( p ) );
mbedtls_md_finish( &sha_ctx, digest );
memcpy( IV, digest, 16 );
/*
* The last four bits in the IV are actually used
* to store the file size modulo the AES block size.
*/
lastn = (int)( filesize & 0x0F );
IV[15] = (unsigned char)
( ( IV[15] & 0xF0 ) | lastn );
/*
* Append the IV at the beginning of the output.
*/
if( fwrite( IV, 1, 16, fout ) != 16 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &sha_ctx );
mbedtls_md_update( &sha_ctx, digest, 32 );
mbedtls_md_update( &sha_ctx, key, keylen );
mbedtls_md_finish( &sha_ctx, digest );
}
mbedtls_aes_setkey_enc( &aes_ctx, digest, 256 );
mbedtls_md_hmac_starts( &sha_ctx, digest, 32 );
/*
* Encrypt and write the ciphertext.
*/
for( offset = 0; offset < filesize; offset += 16 )
{
n = ( filesize - offset > 16 ) ? 16 : (int)
( filesize - offset );
if( fread( buffer, 1, n, fin ) != (size_t) n )
{
mbedtls_fprintf( stderr, "fread(%u bytes) failed\n", n );
goto exit;
}
for( i = 0; i < 16; i++ )
buffer[i] = (unsigned char)( buffer[i] ^ IV[i] );
mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT, buffer, buffer );
mbedtls_md_hmac_update( &sha_ctx, buffer, 16 );
if( fwrite( buffer, 1, 16, fout ) != 16 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( IV, buffer, 16 );
}
/*
* Finally write the HMAC.
*/
mbedtls_md_hmac_finish( &sha_ctx, digest );
if( fwrite( digest, 1, 32, fout ) != 32 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
}
if( mode == MODE_DECRYPT )
{
/*
* The encrypted file must be structured as follows:
*
* 00 .. 15 Initialization Vector
* 16 .. 31 AES Encrypted Block #1
* ..
* N*16 .. (N+1)*16 - 1 AES Encrypted Block #N
* (N+1)*16 .. (N+1)*16 + 32 HMAC-SHA-256(ciphertext)
*/
if( filesize < 48 )
{
mbedtls_fprintf( stderr, "File too short to be encrypted.\n" );
goto exit;
}
if( ( filesize & 0x0F ) != 0 )
{
mbedtls_fprintf( stderr, "File size not a multiple of 16.\n" );
goto exit;
}
/*
* Subtract the IV + HMAC length.
*/
filesize -= ( 16 + 32 );
/*
* Read the IV and original filesize modulo 16.
*/
if( fread( buffer, 1, 16, fin ) != 16 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( IV, buffer, 16 );
lastn = IV[15] & 0x0F;
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &sha_ctx );
mbedtls_md_update( &sha_ctx, digest, 32 );
mbedtls_md_update( &sha_ctx, key, keylen );
mbedtls_md_finish( &sha_ctx, digest );
}
mbedtls_aes_setkey_dec( &aes_ctx, digest, 256 );
mbedtls_md_hmac_starts( &sha_ctx, digest, 32 );
/*
* Decrypt and write the plaintext.
*/
for( offset = 0; offset < filesize; offset += 16 )
{
if( fread( buffer, 1, 16, fin ) != 16 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( tmp, buffer, 16 );
mbedtls_md_hmac_update( &sha_ctx, buffer, 16 );
mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_DECRYPT, buffer, buffer );
for( i = 0; i < 16; i++ )
buffer[i] = (unsigned char)( buffer[i] ^ IV[i] );
memcpy( IV, tmp, 16 );
n = ( lastn > 0 && offset == filesize - 16 )
? lastn : 16;
if( fwrite( buffer, 1, n, fout ) != (size_t) n )
{
mbedtls_fprintf( stderr, "fwrite(%u bytes) failed\n", n );
goto exit;
}
}
/*
* Verify the message authentication code.
*/
mbedtls_md_hmac_finish( &sha_ctx, digest );
if( fread( buffer, 1, 32, fin ) != 32 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 32 );
goto exit;
}
/* Use constant-time buffer comparison */
diff = 0;
for( i = 0; i < 32; i++ )
diff |= digest[i] ^ buffer[i];
if( diff != 0 )
{
mbedtls_fprintf( stderr, "HMAC check failed: wrong key, "
"or file corrupted.\n" );
goto exit;
}
}
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
if( fin )
fclose( fin );
if( fout )
fclose( fout );
/* Zeroize all command line arguments to also cover
the case when the user has missed or reordered some,
in which case the key might not be in argv[4]. */
for( i = 0; i < (unsigned int) argc; i++ )
mbedtls_platform_zeroize( argv[i], strlen( argv[i] ) );
mbedtls_platform_zeroize( IV, sizeof( IV ) );
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
mbedtls_platform_zeroize( buffer, sizeof( buffer ) );
mbedtls_platform_zeroize( digest, sizeof( digest ) );
mbedtls_aes_free( &aes_ctx );
mbedtls_md_free( &sha_ctx );
mbedtls_exit( exit_code );
}
#endif /* MBEDTLS_AES_C && MBEDTLS_SHA256_C && MBEDTLS_FS_IO */

View File

@@ -1,566 +0,0 @@
/*
* \brief Generic file encryption program using generic wrappers for configured
* security.
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* Enable definition of fileno() even when compiling with -std=c99. Must be
* set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#define _POSIX_C_SOURCE 200112L
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_fprintf fprintf
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_CIPHER_C) && defined(MBEDTLS_MD_C) && \
defined(MBEDTLS_FS_IO)
#include "mbedtls/cipher.h"
#include "mbedtls/md.h"
#include "mbedtls/platform_util.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#endif
#if defined(_WIN32)
#include <windows.h>
#if !defined(_WIN32_WCE)
#include <io.h>
#endif
#else
#include <sys/types.h>
#include <unistd.h>
#endif
#define MODE_ENCRYPT 0
#define MODE_DECRYPT 1
#define USAGE \
"\n crypt_and_hash <mode> <input filename> <output filename> <cipher> <mbedtls_md> <key>\n" \
"\n <mode>: 0 = encrypt, 1 = decrypt\n" \
"\n example: crypt_and_hash 0 file file.aes AES-128-CBC SHA1 hex:E76B2413958B00E193\n" \
"\n"
#if !defined(MBEDTLS_CIPHER_C) || !defined(MBEDTLS_MD_C) || \
!defined(MBEDTLS_FS_IO)
int main( void )
{
mbedtls_printf("MBEDTLS_CIPHER_C and/or MBEDTLS_MD_C and/or MBEDTLS_FS_IO not defined.\n");
mbedtls_exit( 0 );
}
#else
int main( int argc, char *argv[] )
{
int ret = 1, i;
unsigned n;
int exit_code = MBEDTLS_EXIT_FAILURE;
int mode;
size_t keylen, ilen, olen;
FILE *fkey, *fin = NULL, *fout = NULL;
char *p;
unsigned char IV[16];
unsigned char key[512];
unsigned char digest[MBEDTLS_MD_MAX_SIZE];
unsigned char buffer[1024];
unsigned char output[1024];
unsigned char diff;
const mbedtls_cipher_info_t *cipher_info;
const mbedtls_md_info_t *md_info;
mbedtls_cipher_context_t cipher_ctx;
mbedtls_md_context_t md_ctx;
#if defined(_WIN32_WCE)
long filesize, offset;
#elif defined(_WIN32)
LARGE_INTEGER li_size;
__int64 filesize, offset;
#else
off_t filesize, offset;
#endif
mbedtls_cipher_init( &cipher_ctx );
mbedtls_md_init( &md_ctx );
/*
* Parse the command-line arguments.
*/
if( argc != 7 )
{
const int *list;
mbedtls_printf( USAGE );
mbedtls_printf( "Available ciphers:\n" );
list = mbedtls_cipher_list();
while( *list )
{
cipher_info = mbedtls_cipher_info_from_type( *list );
mbedtls_printf( " %s\n", cipher_info->name );
list++;
}
mbedtls_printf( "\nAvailable message digests:\n" );
list = mbedtls_md_list();
while( *list )
{
md_info = mbedtls_md_info_from_type( *list );
mbedtls_printf( " %s\n", mbedtls_md_get_name( md_info ) );
list++;
}
#if defined(_WIN32)
mbedtls_printf( "\n Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
goto exit;
}
mode = atoi( argv[1] );
if( mode != MODE_ENCRYPT && mode != MODE_DECRYPT )
{
mbedtls_fprintf( stderr, "invalid operation mode\n" );
goto exit;
}
if( strcmp( argv[2], argv[3] ) == 0 )
{
mbedtls_fprintf( stderr, "input and output filenames must differ\n" );
goto exit;
}
if( ( fin = fopen( argv[2], "rb" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,rb) failed\n", argv[2] );
goto exit;
}
if( ( fout = fopen( argv[3], "wb+" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,wb+) failed\n", argv[3] );
goto exit;
}
/*
* Read the Cipher and MD from the command line
*/
cipher_info = mbedtls_cipher_info_from_string( argv[4] );
if( cipher_info == NULL )
{
mbedtls_fprintf( stderr, "Cipher '%s' not found\n", argv[4] );
goto exit;
}
if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info) ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_setup failed\n" );
goto exit;
}
md_info = mbedtls_md_info_from_string( argv[5] );
if( md_info == NULL )
{
mbedtls_fprintf( stderr, "Message Digest '%s' not found\n", argv[5] );
goto exit;
}
if( mbedtls_md_setup( &md_ctx, md_info, 1 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_md_setup failed\n" );
goto exit;
}
/*
* Read the secret key from file or command line
*/
if( ( fkey = fopen( argv[6], "rb" ) ) != NULL )
{
keylen = fread( key, 1, sizeof( key ), fkey );
fclose( fkey );
}
else
{
if( memcmp( argv[6], "hex:", 4 ) == 0 )
{
p = &argv[6][4];
keylen = 0;
while( sscanf( p, "%02X", (unsigned int*) &n ) > 0 &&
keylen < (int) sizeof( key ) )
{
key[keylen++] = (unsigned char) n;
p += 2;
}
}
else
{
keylen = strlen( argv[6] );
if( keylen > (int) sizeof( key ) )
keylen = (int) sizeof( key );
memcpy( key, argv[6], keylen );
}
}
#if defined(_WIN32_WCE)
filesize = fseek( fin, 0L, SEEK_END );
#else
#if defined(_WIN32)
/*
* Support large files (> 2Gb) on Win32
*/
li_size.QuadPart = 0;
li_size.LowPart =
SetFilePointer( (HANDLE) _get_osfhandle( _fileno( fin ) ),
li_size.LowPart, &li_size.HighPart, FILE_END );
if( li_size.LowPart == 0xFFFFFFFF && GetLastError() != NO_ERROR )
{
mbedtls_fprintf( stderr, "SetFilePointer(0,FILE_END) failed\n" );
goto exit;
}
filesize = li_size.QuadPart;
#else
if( ( filesize = lseek( fileno( fin ), 0, SEEK_END ) ) < 0 )
{
perror( "lseek" );
goto exit;
}
#endif
#endif
if( fseek( fin, 0, SEEK_SET ) < 0 )
{
mbedtls_fprintf( stderr, "fseek(0,SEEK_SET) failed\n" );
goto exit;
}
if( mode == MODE_ENCRYPT )
{
/*
* Generate the initialization vector as:
* IV = MD( filesize || filename )[0..15]
*/
for( i = 0; i < 8; i++ )
buffer[i] = (unsigned char)( filesize >> ( i << 3 ) );
p = argv[2];
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, buffer, 8 );
mbedtls_md_update( &md_ctx, (unsigned char *) p, strlen( p ) );
mbedtls_md_finish( &md_ctx, digest );
memcpy( IV, digest, 16 );
/*
* Append the IV at the beginning of the output.
*/
if( fwrite( IV, 1, 16, fout ) != 16 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, digest, 32 );
mbedtls_md_update( &md_ctx, key, keylen );
mbedtls_md_finish( &md_ctx, digest );
}
if( mbedtls_cipher_setkey( &cipher_ctx, digest, cipher_info->key_bitlen,
MBEDTLS_ENCRYPT ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_setkey() returned error\n");
goto exit;
}
if( mbedtls_cipher_set_iv( &cipher_ctx, IV, 16 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_set_iv() returned error\n");
goto exit;
}
if( mbedtls_cipher_reset( &cipher_ctx ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_reset() returned error\n");
goto exit;
}
mbedtls_md_hmac_starts( &md_ctx, digest, 32 );
/*
* Encrypt and write the ciphertext.
*/
for( offset = 0; offset < filesize; offset += mbedtls_cipher_get_block_size( &cipher_ctx ) )
{
ilen = ( (unsigned int) filesize - offset > mbedtls_cipher_get_block_size( &cipher_ctx ) ) ?
mbedtls_cipher_get_block_size( &cipher_ctx ) : (unsigned int) ( filesize - offset );
if( fread( buffer, 1, ilen, fin ) != ilen )
{
mbedtls_fprintf( stderr, "fread(%ld bytes) failed\n", (long) ilen );
goto exit;
}
if( mbedtls_cipher_update( &cipher_ctx, buffer, ilen, output, &olen ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_update() returned error\n");
goto exit;
}
mbedtls_md_hmac_update( &md_ctx, output, olen );
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
}
if( mbedtls_cipher_finish( &cipher_ctx, output, &olen ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_finish() returned error\n" );
goto exit;
}
mbedtls_md_hmac_update( &md_ctx, output, olen );
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
/*
* Finally write the HMAC.
*/
mbedtls_md_hmac_finish( &md_ctx, digest );
if( fwrite( digest, 1, mbedtls_md_get_size( md_info ), fout ) != mbedtls_md_get_size( md_info ) )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", mbedtls_md_get_size( md_info ) );
goto exit;
}
}
if( mode == MODE_DECRYPT )
{
/*
* The encrypted file must be structured as follows:
*
* 00 .. 15 Initialization Vector
* 16 .. 31 Encrypted Block #1
* ..
* N*16 .. (N+1)*16 - 1 Encrypted Block #N
* (N+1)*16 .. (N+1)*16 + n Hash(ciphertext)
*/
if( filesize < 16 + mbedtls_md_get_size( md_info ) )
{
mbedtls_fprintf( stderr, "File too short to be encrypted.\n" );
goto exit;
}
if( mbedtls_cipher_get_block_size( &cipher_ctx ) == 0 )
{
mbedtls_fprintf( stderr, "Invalid cipher block size: 0. \n" );
goto exit;
}
/*
* Check the file size.
*/
if( cipher_info->mode != MBEDTLS_MODE_GCM &&
( ( filesize - mbedtls_md_get_size( md_info ) ) %
mbedtls_cipher_get_block_size( &cipher_ctx ) ) != 0 )
{
mbedtls_fprintf( stderr, "File content not a multiple of the block size (%u).\n",
mbedtls_cipher_get_block_size( &cipher_ctx ));
goto exit;
}
/*
* Subtract the IV + HMAC length.
*/
filesize -= ( 16 + mbedtls_md_get_size( md_info ) );
/*
* Read the IV and original filesize modulo 16.
*/
if( fread( buffer, 1, 16, fin ) != 16 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( IV, buffer, 16 );
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, digest, 32 );
mbedtls_md_update( &md_ctx, key, keylen );
mbedtls_md_finish( &md_ctx, digest );
}
if( mbedtls_cipher_setkey( &cipher_ctx, digest, cipher_info->key_bitlen,
MBEDTLS_DECRYPT ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_setkey() returned error\n" );
goto exit;
}
if( mbedtls_cipher_set_iv( &cipher_ctx, IV, 16 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_set_iv() returned error\n" );
goto exit;
}
if( mbedtls_cipher_reset( &cipher_ctx ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_reset() returned error\n" );
goto exit;
}
mbedtls_md_hmac_starts( &md_ctx, digest, 32 );
/*
* Decrypt and write the plaintext.
*/
for( offset = 0; offset < filesize; offset += mbedtls_cipher_get_block_size( &cipher_ctx ) )
{
ilen = ( (unsigned int) filesize - offset > mbedtls_cipher_get_block_size( &cipher_ctx ) ) ?
mbedtls_cipher_get_block_size( &cipher_ctx ) : (unsigned int) ( filesize - offset );
if( fread( buffer, 1, ilen, fin ) != ilen )
{
mbedtls_fprintf( stderr, "fread(%u bytes) failed\n",
mbedtls_cipher_get_block_size( &cipher_ctx ) );
goto exit;
}
mbedtls_md_hmac_update( &md_ctx, buffer, ilen );
if( mbedtls_cipher_update( &cipher_ctx, buffer, ilen, output,
&olen ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_update() returned error\n" );
goto exit;
}
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
}
/*
* Verify the message authentication code.
*/
mbedtls_md_hmac_finish( &md_ctx, digest );
if( fread( buffer, 1, mbedtls_md_get_size( md_info ), fin ) != mbedtls_md_get_size( md_info ) )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", mbedtls_md_get_size( md_info ) );
goto exit;
}
/* Use constant-time buffer comparison */
diff = 0;
for( i = 0; i < mbedtls_md_get_size( md_info ); i++ )
diff |= digest[i] ^ buffer[i];
if( diff != 0 )
{
mbedtls_fprintf( stderr, "HMAC check failed: wrong key, "
"or file corrupted.\n" );
goto exit;
}
/*
* Write the final block of data
*/
mbedtls_cipher_finish( &cipher_ctx, output, &olen );
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
}
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
if( fin )
fclose( fin );
if( fout )
fclose( fout );
/* Zeroize all command line arguments to also cover
the case when the user has missed or reordered some,
in which case the key might not be in argv[6]. */
for( i = 0; i < argc; i++ )
mbedtls_platform_zeroize( argv[i], strlen( argv[i] ) );
mbedtls_platform_zeroize( IV, sizeof( IV ) );
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( buffer, sizeof( buffer ) );
mbedtls_platform_zeroize( output, sizeof( output ) );
mbedtls_platform_zeroize( digest, sizeof( digest ) );
mbedtls_cipher_free( &cipher_ctx );
mbedtls_md_free( &md_ctx );
mbedtls_exit( exit_code );
}
#endif /* MBEDTLS_CIPHER_C && MBEDTLS_MD_C && MBEDTLS_FS_IO */

View File

@@ -1,19 +0,0 @@
#include "mbedtls/platform_time.h"
#include <stdint.h>
typedef struct fuzzBufferOffset
{
const uint8_t *Data;
size_t Size;
size_t Offset;
} fuzzBufferOffset_t;
mbedtls_time_t dummy_constant_time( mbedtls_time_t* time );
void dummy_init();
int dummy_send( void *ctx, const unsigned char *buf, size_t len );
int fuzz_recv( void *ctx, unsigned char *buf, size_t len );
int dummy_random( void *p_rng, unsigned char *output, size_t output_len );
int dummy_entropy( void *data, unsigned char *output, size_t len );
int fuzz_recv_timeout( void *ctx, unsigned char *buf, size_t len,
uint32_t timeout );

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