mirror of
https://github.com/cuberite/polarssl.git
synced 2025-11-04 04:32:24 -05:00
134 lines
3.4 KiB
C
134 lines
3.4 KiB
C
/**
|
|
* \file mbedtls_sha256.h
|
|
*
|
|
* \brief SHA-224 and SHA-256 cryptographic hash function
|
|
*
|
|
* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
|
|
*
|
|
* This file is part of mbed TLS (https://tls.mbed.org)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
#ifndef MBEDTLS_SHA256_H
|
|
#define MBEDTLS_SHA256_H
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#if !defined(MBEDTLS_SHA256_ALT)
|
|
// Regular implementation
|
|
//
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief SHA-256 context structure
|
|
*/
|
|
typedef struct
|
|
{
|
|
uint32_t total[2]; /*!< number of bytes processed */
|
|
uint32_t state[8]; /*!< intermediate digest state */
|
|
unsigned char buffer[64]; /*!< data block being processed */
|
|
int is224; /*!< 0 => SHA-256, else SHA-224 */
|
|
}
|
|
mbedtls_sha256_context;
|
|
|
|
/**
|
|
* \brief Initialize SHA-256 context
|
|
*
|
|
* \param ctx SHA-256 context to be initialized
|
|
*/
|
|
void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
|
|
|
|
/**
|
|
* \brief Clear SHA-256 context
|
|
*
|
|
* \param ctx SHA-256 context to be cleared
|
|
*/
|
|
void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
|
|
|
|
/**
|
|
* \brief SHA-256 context setup
|
|
*
|
|
* \param ctx context to be initialized
|
|
* \param is224 0 = use SHA256, 1 = use SHA224
|
|
*/
|
|
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
|
|
|
|
/**
|
|
* \brief SHA-256 process buffer
|
|
*
|
|
* \param ctx SHA-256 context
|
|
* \param input buffer holding the data
|
|
* \param ilen length of the input data
|
|
*/
|
|
void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
|
|
size_t ilen );
|
|
|
|
/**
|
|
* \brief SHA-256 final digest
|
|
*
|
|
* \param ctx SHA-256 context
|
|
* \param output SHA-224/256 checksum result
|
|
*/
|
|
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );
|
|
|
|
/* Internal use */
|
|
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#else /* MBEDTLS_SHA256_ALT */
|
|
#include "sha256_alt.h"
|
|
#endif /* MBEDTLS_SHA256_ALT */
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief Output = SHA-256( input buffer )
|
|
*
|
|
* \param input buffer holding the data
|
|
* \param ilen length of the input data
|
|
* \param output SHA-224/256 checksum result
|
|
* \param is224 0 = use SHA256, 1 = use SHA224
|
|
*/
|
|
void mbedtls_sha256( const unsigned char *input, size_t ilen,
|
|
unsigned char output[32], int is224 );
|
|
|
|
/**
|
|
* \brief Checkup routine
|
|
*
|
|
* \return 0 if successful, or 1 if the test failed
|
|
*/
|
|
int mbedtls_sha256_self_test( int verbose );
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* mbedtls_sha256.h */
|