mirror of
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147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
/**
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* \file sha1.h
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*
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* \brief SHA-1 cryptographic hash function
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*
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* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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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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#if !defined(POLARSSL_CONFIG_FILE)
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#include "config.h"
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#else
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#include POLARSSL_CONFIG_FILE
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#endif
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#include <stddef.h>
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#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
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#include <basetsd.h>
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typedef UINT32 uint32_t;
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#else
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#include <inttypes.h>
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#endif
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#define POLARSSL_ERR_SHA1_FILE_IO_ERROR -0x0076 /**< Read/write error in file. */
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#if !defined(POLARSSL_SHA1_ALT)
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// Regular implementation
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//
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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 structure
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*/
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typedef struct
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{
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uint32_t total[2]; /*!< number of bytes processed */
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uint32_t state[5]; /*!< intermediate digest state */
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unsigned char buffer[64]; /*!< data block being processed */
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}
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sha1_context;
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/**
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* \brief Initialize SHA-1 context
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*
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* \param ctx SHA-1 context to be initialized
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*/
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void sha1_init( sha1_context *ctx );
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/**
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* \brief Clear SHA-1 context
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*
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* \param ctx SHA-1 context to be cleared
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*/
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void sha1_free( sha1_context *ctx );
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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, size_t 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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/* Internal use */
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void sha1_process( sha1_context *ctx, const unsigned char data[64] );
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#ifdef __cplusplus
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}
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#endif
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#else /* POLARSSL_SHA1_ALT */
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#include "sha1_alt.h"
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#endif /* POLARSSL_SHA1_ALT */
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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 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, size_t ilen, unsigned char output[20] );
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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, or POLARSSL_ERR_SHA1_FILE_IO_ERROR
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*/
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int sha1_file( const char *path, 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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