/** * \file sha1.h * * \brief SHA-1 cryptographic hash function * * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved * * This file is part of mbed TLS (https://polarssl.org) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef POLARSSL_SHA1_H #define POLARSSL_SHA1_H #include "config.h" #include #ifdef _MSC_VER #include typedef UINT32 uint32_t; #else #include #endif #define POLARSSL_ERR_SHA1_FILE_IO_ERROR -0x0076 /**< Read/write error in file. */ #if !defined(POLARSSL_SHA1_ALT) // Regular implementation // /** * \brief SHA-1 context structure */ typedef struct { uint32_t total[2]; /*!< number of bytes processed */ uint32_t state[5]; /*!< 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 */ } sha1_context; #ifdef __cplusplus extern "C" { #endif /** * \brief SHA-1 context setup * * \param ctx context to be initialized */ void sha1_starts( sha1_context *ctx ); /** * \brief SHA-1 process buffer * * \param ctx SHA-1 context * \param input buffer holding the data * \param ilen length of the input data */ void sha1_update( sha1_context *ctx, const unsigned char *input, size_t ilen ); /** * \brief SHA-1 final digest * * \param ctx SHA-1 context * \param output SHA-1 checksum result */ void sha1_finish( sha1_context *ctx, unsigned char output[20] ); /* Internal use */ void sha1_process( sha1_context *ctx, const unsigned char data[64] ); #ifdef __cplusplus } #endif #else /* POLARSSL_SHA1_ALT */ #include "sha1_alt.h" #endif /* POLARSSL_SHA1_ALT */ #ifdef __cplusplus extern "C" { #endif /** * \brief Output = SHA-1( input buffer ) * * \param input buffer holding the data * \param ilen length of the input data * \param output SHA-1 checksum result */ void sha1( const unsigned char *input, size_t ilen, unsigned char output[20] ); /** * \brief Output = SHA-1( file contents ) * * \param path input file name * \param output SHA-1 checksum result * * \return 0 if successful, or POLARSSL_ERR_SHA1_FILE_IO_ERROR */ int sha1_file( const char *path, unsigned char output[20] ); /** * \brief SHA-1 HMAC context setup * * \param ctx HMAC context to be initialized * \param key HMAC secret key * \param keylen length of the HMAC key */ void sha1_hmac_starts( sha1_context *ctx, const unsigned char *key, size_t keylen ); /** * \brief SHA-1 HMAC process buffer * * \param ctx HMAC context * \param input buffer holding the data * \param ilen length of the input data */ void sha1_hmac_update( sha1_context *ctx, const unsigned char *input, size_t ilen ); /** * \brief SHA-1 HMAC final digest * * \param ctx HMAC context * \param output SHA-1 HMAC checksum result */ void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] ); /** * \brief SHA-1 HMAC context reset * * \param ctx HMAC context to be reset */ void sha1_hmac_reset( sha1_context *ctx ); /** * \brief Output = HMAC-SHA-1( 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-SHA-1 result */ void sha1_hmac( const unsigned char *key, size_t keylen, const unsigned char *input, size_t ilen, unsigned char output[20] ); /** * \brief Checkup routine * * \return 0 if successful, or 1 if the test failed */ int sha1_self_test( int verbose ); #ifdef __cplusplus } #endif #endif /* sha1.h */