cryb-to/include/cryb/sha512.h

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/*
* Copyright (c) 2006-2007 Christophe Devine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Cryb$
*/
#ifndef CRYB_SHA512_H_INCLUDED
#define CRYB_SHA512_H_INCLUDED
#include <cryb/digest.h>
#define SHA512_BLOCK_LEN 128
#define SHA512_DIGEST_LEN 64
#define sha512_digest cryb_sha512_digest
#define sha512_ctx cryb_sha512_ctx
#define sha512_init cryb_sha512_init
#define sha512_update cryb_sha512_update
#define sha512_final cryb_sha512_final
#define sha512_complete cryb_sha512_complete
extern digest_algorithm sha512_digest;
/**
* \brief SHA-512 context structure
*/
typedef struct
{
uint64_t total[2]; /*!< number of bytes processed */
uint64_t state[8]; /*!< intermediate digest state */
uint8_t buffer[128]; /*!< data block being processed */
uint8_t ipad[128]; /*!< HMAC: inner padding */
uint8_t opad[128]; /*!< HMAC: outer padding */
}
sha512_ctx;
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief SHA-512 context setup
*
* \param ctx context to be initialized
*/
void sha512_init( sha512_ctx *ctx );
/**
* \brief SHA-512 process buffer
*
* \param ctx SHA-512 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void sha512_update( sha512_ctx *ctx, const void *input, int ilen );
/**
* \brief SHA-512 final digest
*
* \param ctx SHA-512 context
* \param output SHA-384/512 checksum result
*/
void sha512_final( sha512_ctx *ctx, unsigned char output[64] );
/**
* \brief Output = SHA-512( input buffer )
*
* \param input buffer holding the data
* \param ilen length of the input data
* \param output SHA-384/512 checksum result
*/
void sha512_complete( const void *input, int ilen,
unsigned char output[64] );
/**
* \brief SHA-512 HMAC context setup
*
* \param ctx HMAC context to be initialized
* \param key HMAC secret key
* \param keylen length of the HMAC key
*/
void sha512_hmac_init( sha512_ctx *ctx, unsigned char *key, int keylen );
/**
* \brief SHA-512 HMAC process buffer
*
* \param ctx HMAC context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void sha512_hmac_update( sha512_ctx *ctx, unsigned char *input, int ilen );
/**
* \brief SHA-512 HMAC final digest
*
* \param ctx HMAC context
* \param output SHA-384/512 HMAC checksum result
*/
void sha512_hmac_final( sha512_ctx *ctx, unsigned char output[64] );
/**
* \brief Output = HMAC-SHA-512( hmac key, input buffer )
*
* \param key HMAC secret key
* \param keylen length of the HMAC key
* \param input buffer holding the data
* \param ilen length of the input data
* \param output HMAC-SHA-384/512 result
*/
void sha512_hmac_complete( unsigned char *key, int keylen,
unsigned char *input, int ilen,
unsigned char output[64] );
#ifdef __cplusplus
}
#endif
#endif