cryb-to/include/cryb/md2.h
2016-10-03 12:31:16 +02:00

99 lines
3 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.
*/
#ifndef CRYB_MD2_H_INCLUDED
#define CRYB_MD2_H_INCLUDED
#ifndef CRYB_TO
#include <cryb/to.h>
#endif
#include <cryb/digest.h>
CRYB_BEGIN
#define MD2_BLOCK_LEN 16
#define MD2_DIGEST_LEN 16
#define md2_digest cryb_md2_digest
#define md2_ctx cryb_md2_ctx
#define md2_init cryb_md2_init
#define md2_update cryb_md2_update
#define md2_final cryb_md2_final
#define md2_complete cryb_md2_complete
extern digest_algorithm md2_digest;
/**
* \brief MD2 context structure
*/
typedef struct
{
uint8_t cksum[16]; /*!< checksum of the data block */
uint8_t state[48]; /*!< intermediate digest state */
uint8_t buffer[16]; /*!< data block being processed */
int left; /*!< amount of data in buffer */
} md2_ctx;
/**
* \brief MD2 context setup
*
* \param ctx context to be initialized
*/
void md2_init( md2_ctx *ctx );
/**
* \brief MD2 process buffer
*
* \param ctx MD2 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void md2_update( md2_ctx *ctx, const void *input, int ilen );
/**
* \brief MD2 final digest
*
* \param ctx MD2 context
* \param output MD2 checksum result
*/
void md2_final( md2_ctx *ctx, uint8_t *output );
/**
* \brief Output = MD2( input buffer )
*
* \param input buffer holding the data
* \param ilen length of the input data
* \param output MD2 checksum result
*/
void md2_complete( const void *input, int ilen, uint8_t *output );
CRYB_END
#endif