163 lines
4.6 KiB
C
163 lines
4.6 KiB
C
/**
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* \file sha4.h
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*
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* Copyright (C) 2006-2010, Brainspark B.V.
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*
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* This file is part of PolarSSL (http://www.polarssl.org)
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* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
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*
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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_SHA4_H
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#define POLARSSL_SHA4_H
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#if defined(_MSC_VER) || defined(__WATCOMC__)
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#define UL64(x) x##ui64
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#define int64 __int64
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#else
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#define UL64(x) x##ULL
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#define int64 long long
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#endif
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/**
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* \brief SHA-512 context structure
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*/
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typedef struct
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{
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unsigned int64 total[2]; /*!< number of bytes processed */
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unsigned int64 state[8]; /*!< intermediate digest state */
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unsigned char buffer[128]; /*!< data block being processed */
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unsigned char ipad[128]; /*!< HMAC: inner padding */
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unsigned char opad[128]; /*!< HMAC: outer padding */
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int is384; /*!< 0 => SHA-512, else SHA-384 */
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}
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sha4_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-512 context setup
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*
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* \param ctx context to be initialized
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* \param is384 0 = use SHA512, 1 = use SHA384
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*/
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void sha4_starts( sha4_context *ctx, int is384 );
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/**
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* \brief SHA-512 process buffer
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*
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* \param ctx SHA-512 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 sha4_update( sha4_context *ctx, const unsigned char *input, int ilen );
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/**
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* \brief SHA-512 final digest
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*
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* \param ctx SHA-512 context
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* \param output SHA-384/512 checksum result
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*/
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void sha4_finish( sha4_context *ctx, unsigned char output[64] );
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/**
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* \brief Output = SHA-512( 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-384/512 checksum result
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* \param is384 0 = use SHA512, 1 = use SHA384
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*/
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void sha4( const unsigned char *input, int ilen,
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unsigned char output[64], int is384 );
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/**
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* \brief Output = SHA-512( file contents )
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*
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* \param path input file name
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* \param output SHA-384/512 checksum result
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* \param is384 0 = use SHA512, 1 = use SHA384
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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 sha4_file( const char *path, unsigned char output[64], int is384 );
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/**
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* \brief SHA-512 HMAC context setup
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*
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* \param ctx HMAC context to be initialized
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* \param is384 0 = use SHA512, 1 = use SHA384
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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 sha4_hmac_starts( sha4_context *ctx, const unsigned char *key, int keylen,
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int is384 );
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/**
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* \brief SHA-512 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 sha4_hmac_update( sha4_context *ctx, const unsigned char *input, int ilen );
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/**
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* \brief SHA-512 HMAC final digest
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*
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* \param ctx HMAC context
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* \param output SHA-384/512 HMAC checksum result
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*/
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void sha4_hmac_finish( sha4_context *ctx, unsigned char output[64] );
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/**
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* \brief SHA-512 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 sha4_hmac_reset( sha4_context *ctx );
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/**
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* \brief Output = HMAC-SHA-512( 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-384/512 result
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* \param is384 0 = use SHA512, 1 = use SHA384
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*/
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void sha4_hmac( const unsigned char *key, int keylen,
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const unsigned char *input, int ilen,
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unsigned char output[64], int is384 );
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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 sha4_self_test( int verbose );
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#ifdef __cplusplus
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}
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#endif
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#endif /* sha4.h */
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