cryb-to/include/cryb/md4.h
Dag-Erling Smørgrav b0ff5af2ba Clean up headers and typedefs.
Fix context length in the algorithm descriptors.
Expose the block length and include it in the algorithm descriptors.
Complete the list of available digest algorithms.
2014-07-10 18:09:47 +00:00

143 lines
4.2 KiB
C

/*
* 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_MD4_H_INCLUDED
#define CRYB_MD4_H_INCLUDED
#include <cryb/digest.h>
#define MD4_BLOCK_LEN 64
#define MD4_DIGEST_LEN 16
#define md4_digest cryb_md4_digest
#define md4_ctx cryb_md4_ctx
#define md4_init cryb_md4_init
#define md4_update cryb_md4_update
#define md4_final cryb_md4_final
#define md4_complete cryb_md4_complete
extern digest_algorithm md4_digest;
/**
* \brief MD4 context structure
*/
typedef struct
{
unsigned long total[2]; /*!< number of bytes processed */
unsigned long state[4]; /*!< intermediate digest state */
unsigned char buffer[64]; /*!< data block being processed */
unsigned char ipad[64]; /*!< HMAC: inner padding */
unsigned char opad[64]; /*!< HMAC: outer padding */
}
md4_ctx;
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief MD4 context setup
*
* \param ctx context to be initialized
*/
void md4_init( md4_ctx *ctx );
/**
* \brief MD4 process buffer
*
* \param ctx MD4 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void md4_update( md4_ctx *ctx, const void *input, int ilen );
/**
* \brief MD4 final digest
*
* \param ctx MD4 context
* \param output MD4 checksum result
*/
void md4_final( md4_ctx *ctx, unsigned char output[16] );
/**
* \brief Output = MD4( input buffer )
*
* \param input buffer holding the data
* \param ilen length of the input data
* \param output MD4 checksum result
*/
void md4_complete( const void *input, int ilen, unsigned char output[16] );
/**
* \brief MD4 HMAC context setup
*
* \param ctx HMAC context to be initialized
* \param key HMAC secret key
* \param keylen length of the HMAC key
*/
void md4_hmac_init( md4_ctx *ctx, unsigned char *key, int keylen );
/**
* \brief MD4 HMAC process buffer
*
* \param ctx HMAC context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void md4_hmac_update( md4_ctx *ctx, unsigned char *input, int ilen );
/**
* \brief MD4 HMAC final digest
*
* \param ctx HMAC context
* \param output MD4 HMAC checksum result
*/
void md4_hmac_final( md4_ctx *ctx, unsigned char output[16] );
/**
* \brief Output = HMAC-MD4( 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-MD4 result
*/
void md4_hmac_complete( unsigned char *key, int keylen,
unsigned char *input, int ilen,
unsigned char output[16] );
#ifdef __cplusplus
}
#endif
#endif