mirror of
https://github.com/yuzu-emu/mbedtls.git
synced 2024-12-24 19:35:43 +00:00
815e9a21a3
Remove cryptography related files and a few utility header files that are shared between Mbed TLS and Mbed Crypto. Mbed TLS will use an Mbed Crypto sourced version of each of these header files in order to ease the maintenance burden of both libraries, and to make it easier to keep Mbed TLS and Mbed Crypto in sync. As part of removing cryptography related files, tell Doxygen to source information from the removed the headers, so that it will consider them for inclusion within Doxygen output. Later, as part of the Mbed TLS 3.0 (API breaking version), we'll restructure the organization of the 3 libraries a bit, to move some things out of Mbed Crypto that don't belong there. Candidates of not belonging in Mbed Crypto, but are in libmbedcrypto.so for legacy reasons: - asn1.h - asn1write.h - base64.h - memory_buffer_alloc.h - platform.h - platform_time.h - platform_util.h - threading.h - timing.h - version.h
298 lines
11 KiB
C
298 lines
11 KiB
C
/**
|
|
* \file sha256.h
|
|
*
|
|
* \brief This file contains SHA-224 and SHA-256 definitions and functions.
|
|
*
|
|
* The Secure Hash Algorithms 224 and 256 (SHA-224 and SHA-256) cryptographic
|
|
* hash functions are defined in <em>FIPS 180-4: Secure Hash Standard (SHS)</em>.
|
|
*/
|
|
/*
|
|
* Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
|
|
* 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.
|
|
*
|
|
* This file is part of Mbed TLS (https://tls.mbed.org)
|
|
*/
|
|
#ifndef MBEDTLS_SHA256_H
|
|
#define MBEDTLS_SHA256_H
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
/* MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED is deprecated and should not be used. */
|
|
#define MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED -0x0037 /**< SHA-256 hardware accelerator failed */
|
|
#define MBEDTLS_ERR_SHA256_BAD_INPUT_DATA -0x0074 /**< SHA-256 input data was malformed. */
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#if !defined(MBEDTLS_SHA256_ALT)
|
|
// Regular implementation
|
|
//
|
|
|
|
/**
|
|
* \brief The SHA-256 context structure.
|
|
*
|
|
* The structure is used both for SHA-256 and for SHA-224
|
|
* checksum calculations. The choice between these two is
|
|
* made in the call to mbedtls_sha256_starts_ret().
|
|
*/
|
|
typedef struct mbedtls_sha256_context
|
|
{
|
|
uint32_t total[2]; /*!< The number of Bytes processed. */
|
|
uint32_t state[8]; /*!< The intermediate digest state. */
|
|
unsigned char buffer[64]; /*!< The data block being processed. */
|
|
int is224; /*!< Determines which function to use:
|
|
0: Use SHA-256, or 1: Use SHA-224. */
|
|
}
|
|
mbedtls_sha256_context;
|
|
|
|
#else /* MBEDTLS_SHA256_ALT */
|
|
#include "sha256_alt.h"
|
|
#endif /* MBEDTLS_SHA256_ALT */
|
|
|
|
/**
|
|
* \brief This function initializes a SHA-256 context.
|
|
*
|
|
* \param ctx The SHA-256 context to initialize. This must not be \c NULL.
|
|
*/
|
|
void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
|
|
|
|
/**
|
|
* \brief This function clears a SHA-256 context.
|
|
*
|
|
* \param ctx The SHA-256 context to clear. This may be \c NULL, in which
|
|
* case this function returns immediately. If it is not \c NULL,
|
|
* it must point to an initialized SHA-256 context.
|
|
*/
|
|
void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
|
|
|
|
/**
|
|
* \brief This function clones the state of a SHA-256 context.
|
|
*
|
|
* \param dst The destination context. This must be initialized.
|
|
* \param src The context to clone. This must be initialized.
|
|
*/
|
|
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
|
|
const mbedtls_sha256_context *src );
|
|
|
|
/**
|
|
* \brief This function starts a SHA-224 or SHA-256 checksum
|
|
* calculation.
|
|
*
|
|
* \param ctx The context to use. This must be initialized.
|
|
* \param is224 This determines which function to use. This must be
|
|
* either \c 0 for SHA-256, or \c 1 for SHA-224.
|
|
*
|
|
* \return \c 0 on success.
|
|
* \return A negative error code on failure.
|
|
*/
|
|
int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 );
|
|
|
|
/**
|
|
* \brief This function feeds an input buffer into an ongoing
|
|
* SHA-256 checksum calculation.
|
|
*
|
|
* \param ctx The SHA-256 context. This must be initialized
|
|
* and have a hash operation started.
|
|
* \param input The buffer holding the data. This must be a readable
|
|
* buffer of length \p ilen Bytes.
|
|
* \param ilen The length of the input data in Bytes.
|
|
*
|
|
* \return \c 0 on success.
|
|
* \return A negative error code on failure.
|
|
*/
|
|
int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
|
|
const unsigned char *input,
|
|
size_t ilen );
|
|
|
|
/**
|
|
* \brief This function finishes the SHA-256 operation, and writes
|
|
* the result to the output buffer.
|
|
*
|
|
* \param ctx The SHA-256 context. This must be initialized
|
|
* and have a hash operation started.
|
|
* \param output The SHA-224 or SHA-256 checksum result.
|
|
* This must be a writable buffer of length \c 32 Bytes.
|
|
*
|
|
* \return \c 0 on success.
|
|
* \return A negative error code on failure.
|
|
*/
|
|
int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
|
|
unsigned char output[32] );
|
|
|
|
/**
|
|
* \brief This function processes a single data block within
|
|
* the ongoing SHA-256 computation. This function is for
|
|
* internal use only.
|
|
*
|
|
* \param ctx The SHA-256 context. This must be initialized.
|
|
* \param data The buffer holding one block of data. This must
|
|
* be a readable buffer of length \c 64 Bytes.
|
|
*
|
|
* \return \c 0 on success.
|
|
* \return A negative error code on failure.
|
|
*/
|
|
int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
|
|
const unsigned char data[64] );
|
|
|
|
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
|
#if defined(MBEDTLS_DEPRECATED_WARNING)
|
|
#define MBEDTLS_DEPRECATED __attribute__((deprecated))
|
|
#else
|
|
#define MBEDTLS_DEPRECATED
|
|
#endif
|
|
/**
|
|
* \brief This function starts a SHA-224 or SHA-256 checksum
|
|
* calculation.
|
|
*
|
|
* \deprecated Superseded by mbedtls_sha256_starts_ret() in 2.7.0.
|
|
*
|
|
* \param ctx The context to use. This must be initialized.
|
|
* \param is224 Determines which function to use. This must be
|
|
* either \c 0 for SHA-256, or \c 1 for SHA-224.
|
|
*/
|
|
MBEDTLS_DEPRECATED void mbedtls_sha256_starts( mbedtls_sha256_context *ctx,
|
|
int is224 );
|
|
|
|
/**
|
|
* \brief This function feeds an input buffer into an ongoing
|
|
* SHA-256 checksum calculation.
|
|
*
|
|
* \deprecated Superseded by mbedtls_sha256_update_ret() in 2.7.0.
|
|
*
|
|
* \param ctx The SHA-256 context to use. This must be
|
|
* initialized and have a hash operation started.
|
|
* \param input The buffer holding the data. This must be a readable
|
|
* buffer of length \p ilen Bytes.
|
|
* \param ilen The length of the input data in Bytes.
|
|
*/
|
|
MBEDTLS_DEPRECATED void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
|
|
const unsigned char *input,
|
|
size_t ilen );
|
|
|
|
/**
|
|
* \brief This function finishes the SHA-256 operation, and writes
|
|
* the result to the output buffer.
|
|
*
|
|
* \deprecated Superseded by mbedtls_sha256_finish_ret() in 2.7.0.
|
|
*
|
|
* \param ctx The SHA-256 context. This must be initialized and
|
|
* have a hash operation started.
|
|
* \param output The SHA-224 or SHA-256 checksum result. This must be
|
|
* a writable buffer of length \c 32 Bytes.
|
|
*/
|
|
MBEDTLS_DEPRECATED void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
|
|
unsigned char output[32] );
|
|
|
|
/**
|
|
* \brief This function processes a single data block within
|
|
* the ongoing SHA-256 computation. This function is for
|
|
* internal use only.
|
|
*
|
|
* \deprecated Superseded by mbedtls_internal_sha256_process() in 2.7.0.
|
|
*
|
|
* \param ctx The SHA-256 context. This must be initialized.
|
|
* \param data The buffer holding one block of data. This must be
|
|
* a readable buffer of size \c 64 Bytes.
|
|
*/
|
|
MBEDTLS_DEPRECATED void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
|
|
const unsigned char data[64] );
|
|
|
|
#undef MBEDTLS_DEPRECATED
|
|
#endif /* !MBEDTLS_DEPRECATED_REMOVED */
|
|
|
|
/**
|
|
* \brief This function calculates the SHA-224 or SHA-256
|
|
* checksum of a buffer.
|
|
*
|
|
* The function allocates the context, performs the
|
|
* calculation, and frees the context.
|
|
*
|
|
* The SHA-256 result is calculated as
|
|
* output = SHA-256(input buffer).
|
|
*
|
|
* \param input The buffer holding the data. This must be a readable
|
|
* buffer of length \p ilen Bytes.
|
|
* \param ilen The length of the input data in Bytes.
|
|
* \param output The SHA-224 or SHA-256 checksum result. This must
|
|
* be a writable buffer of length \c 32 Bytes.
|
|
* \param is224 Determines which function to use. This must be
|
|
* either \c 0 for SHA-256, or \c 1 for SHA-224.
|
|
*/
|
|
int mbedtls_sha256_ret( const unsigned char *input,
|
|
size_t ilen,
|
|
unsigned char output[32],
|
|
int is224 );
|
|
|
|
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
|
#if defined(MBEDTLS_DEPRECATED_WARNING)
|
|
#define MBEDTLS_DEPRECATED __attribute__((deprecated))
|
|
#else
|
|
#define MBEDTLS_DEPRECATED
|
|
#endif
|
|
|
|
/**
|
|
* \brief This function calculates the SHA-224 or SHA-256 checksum
|
|
* of a buffer.
|
|
*
|
|
* The function allocates the context, performs the
|
|
* calculation, and frees the context.
|
|
*
|
|
* The SHA-256 result is calculated as
|
|
* output = SHA-256(input buffer).
|
|
*
|
|
* \deprecated Superseded by mbedtls_sha256_ret() in 2.7.0.
|
|
*
|
|
* \param input The buffer holding the data. This must be a readable
|
|
* buffer of length \p ilen Bytes.
|
|
* \param ilen The length of the input data in Bytes.
|
|
* \param output The SHA-224 or SHA-256 checksum result. This must be
|
|
* a writable buffer of length \c 32 Bytes.
|
|
* \param is224 Determines which function to use. This must be either
|
|
* \c 0 for SHA-256, or \c 1 for SHA-224.
|
|
*/
|
|
MBEDTLS_DEPRECATED void mbedtls_sha256( const unsigned char *input,
|
|
size_t ilen,
|
|
unsigned char output[32],
|
|
int is224 );
|
|
|
|
#undef MBEDTLS_DEPRECATED
|
|
#endif /* !MBEDTLS_DEPRECATED_REMOVED */
|
|
|
|
#if defined(MBEDTLS_SELF_TEST)
|
|
|
|
/**
|
|
* \brief The SHA-224 and SHA-256 checkup routine.
|
|
*
|
|
* \return \c 0 on success.
|
|
* \return \c 1 on failure.
|
|
*/
|
|
int mbedtls_sha256_self_test( int verbose );
|
|
|
|
#endif /* MBEDTLS_SELF_TEST */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* mbedtls_sha256.h */
|