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/**
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* \file sha1.h
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*
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* Copyright (C) 2006-2010, Paul Bakker <polarssl_maintainer at polarssl.org>
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef POLARSSL_SHA1_H
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#define POLARSSL_SHA1_H
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/**
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* \brief SHA-1 context structure
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*/
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typedef struct
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{
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unsigned long total[2]; /*!< number of bytes processed */
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unsigned long state[5]; /*!< intermediate digest state */
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unsigned char buffer[64]; /*!< 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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}
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sha1_context;
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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 SHA-1 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 sha1_starts( sha1_context *ctx );
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/**
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* \brief SHA-1 process buffer
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*
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* \param ctx SHA-1 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 sha1_update( sha1_context *ctx, const unsigned char *input, int ilen );
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/**
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* \brief SHA-1 final digest
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*
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* \param ctx SHA-1 context
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* \param output SHA-1 checksum result
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*/
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void sha1_finish( sha1_context *ctx, unsigned char output[20] );
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/**
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* \brief Output = SHA-1( 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 SHA-1 checksum result
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*/
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void sha1( const unsigned char *input, int ilen, unsigned char output[20] );
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#if 0 //No need for that
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/**
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* \brief Output = SHA-1( file contents )
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*
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* \param path input file name
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* \param output SHA-1 checksum result
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*
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* \return 0 if successful, 1 if fopen failed,
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* or 2 if fread failed
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*/
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int sha1_file( const char *path, unsigned char output[20] );
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#endif
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/**
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* \brief SHA-1 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 sha1_hmac_starts( sha1_context *ctx, const unsigned char *key, int keylen );
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/**
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* \brief SHA-1 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 sha1_hmac_update( sha1_context *ctx, const unsigned char *input, int ilen );
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/**
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* \brief SHA-1 HMAC final digest
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*
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* \param ctx HMAC context
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* \param output SHA-1 HMAC checksum result
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*/
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void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] );
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/**
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* \brief SHA-1 HMAC context reset
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*
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* \param ctx HMAC context to be reset
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*/
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void sha1_hmac_reset( sha1_context *ctx );
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/**
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* \brief Output = HMAC-SHA-1( 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-SHA-1 result
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*/
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void sha1_hmac( const unsigned char *key, int keylen,
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const unsigned char *input, int ilen,
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unsigned char output[20] );
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/**
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* \brief Checkup routine
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*
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* \return 0 if successful, or 1 if the test failed
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*/
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int sha1_self_test( int verbose );
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#ifdef __cplusplus
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}
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#endif
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#endif /* sha1.h */
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Donatien Garnier
MySQL Client