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141 lines
4.2 KiB
C
141 lines
4.2 KiB
C
/*
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* Copyright (c) 2006-2007 Christophe Devine
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Cryb$
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*/
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#ifndef CRYB_MD2_H_INCLUDED
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#define CRYB_MD2_H_INCLUDED
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#define MD2_DIGEST_LEN 16
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#define md2_digest cryb_md2_digest
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#define md2_ctx cryb_md2_ctx
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#define md2_init cryb_md2_init
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#define md2_update cryb_md2_update
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#define md2_final cryb_md2_final
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#define md2_complete cryb_md2_complete
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extern struct digest_algorithm md2_digest;
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/**
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* \brief MD2 context structure
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*/
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typedef struct
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{
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unsigned char cksum[16]; /*!< checksum of the data block */
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unsigned char state[48]; /*!< intermediate digest state */
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unsigned char buffer[16]; /*!< data block being processed */
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unsigned char ipad[64]; /*!< HMAC: inner padding */
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unsigned char opad[64]; /*!< HMAC: outer padding */
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int left; /*!< amount of data in buffer */
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}
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md2_ctx;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief MD2 context setup
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*
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* \param ctx context to be initialized
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*/
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void md2_init( md2_ctx *ctx );
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/**
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* \brief MD2 process buffer
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*
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* \param ctx MD2 context
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* \param input buffer holding the data
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* \param ilen length of the input data
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*/
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void md2_update( md2_ctx *ctx, const void *input, int ilen );
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/**
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* \brief MD2 final digest
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*
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* \param ctx MD2 context
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* \param output MD2 checksum result
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*/
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void md2_final( md2_ctx *ctx, unsigned char output[16] );
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/**
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* \brief Output = MD2( input buffer )
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*
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* \param input buffer holding the data
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* \param ilen length of the input data
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* \param output MD2 checksum result
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*/
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void md2_complete( const void *input, int ilen, unsigned char output[16] );
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/**
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* \brief MD2 HMAC context setup
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*
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* \param ctx HMAC context to be initialized
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* \param key HMAC secret key
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* \param keylen length of the HMAC key
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*/
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void md2_hmac_init( md2_ctx *ctx, unsigned char *key, int keylen );
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/**
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* \brief MD2 HMAC process buffer
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*
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* \param ctx HMAC context
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* \param input buffer holding the data
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* \param ilen length of the input data
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*/
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void md2_hmac_update( md2_ctx *ctx, unsigned char *input, int ilen );
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/**
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* \brief MD2 HMAC final digest
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*
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* \param ctx HMAC context
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* \param output MD2 HMAC checksum result
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*/
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void md2_hmac_final( md2_ctx *ctx, unsigned char output[16] );
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/**
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* \brief Output = HMAC-MD2( hmac key, input buffer )
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*
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* \param key HMAC secret key
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* \param keylen length of the HMAC key
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* \param input buffer holding the data
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* \param ilen length of the input data
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* \param output HMAC-MD2 result
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*/
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void md2_hmac_complete( unsigned char *key, int keylen,
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unsigned char *input, int ilen,
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unsigned char output[16] );
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#ifdef __cplusplus
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}
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#endif
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#endif /* md2.h */
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