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Dependencies:   mbed

Committer:
darran
Date:
Fri Jul 02 17:21:58 2010 +0000
Revision:
0:ac21159e27f4

        

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darran 0:ac21159e27f4 1 /**
darran 0:ac21159e27f4 2 * \file sha1.h
darran 0:ac21159e27f4 3 *
darran 0:ac21159e27f4 4 * Copyright (C) 2006-2010, Paul Bakker <polarssl_maintainer at polarssl.org>
darran 0:ac21159e27f4 5 * All rights reserved.
darran 0:ac21159e27f4 6 *
darran 0:ac21159e27f4 7 * This program is free software; you can redistribute it and/or modify
darran 0:ac21159e27f4 8 * it under the terms of the GNU General Public License as published by
darran 0:ac21159e27f4 9 * the Free Software Foundation; either version 2 of the License, or
darran 0:ac21159e27f4 10 * (at your option) any later version.
darran 0:ac21159e27f4 11 *
darran 0:ac21159e27f4 12 * This program is distributed in the hope that it will be useful,
darran 0:ac21159e27f4 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
darran 0:ac21159e27f4 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
darran 0:ac21159e27f4 15 * GNU General Public License for more details.
darran 0:ac21159e27f4 16 *
darran 0:ac21159e27f4 17 * You should have received a copy of the GNU General Public License along
darran 0:ac21159e27f4 18 * with this program; if not, write to the Free Software Foundation, Inc.,
darran 0:ac21159e27f4 19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
darran 0:ac21159e27f4 20 */
darran 0:ac21159e27f4 21 #ifndef POLARSSL_SHA1_H
darran 0:ac21159e27f4 22 #define POLARSSL_SHA1_H
darran 0:ac21159e27f4 23
darran 0:ac21159e27f4 24 /**
darran 0:ac21159e27f4 25 * \brief SHA-1 context structure
darran 0:ac21159e27f4 26 */
darran 0:ac21159e27f4 27 typedef struct
darran 0:ac21159e27f4 28 {
darran 0:ac21159e27f4 29 unsigned long total[2]; /*!< number of bytes processed */
darran 0:ac21159e27f4 30 unsigned long state[5]; /*!< intermediate digest state */
darran 0:ac21159e27f4 31 unsigned char buffer[64]; /*!< data block being processed */
darran 0:ac21159e27f4 32
darran 0:ac21159e27f4 33 unsigned char ipad[64]; /*!< HMAC: inner padding */
darran 0:ac21159e27f4 34 unsigned char opad[64]; /*!< HMAC: outer padding */
darran 0:ac21159e27f4 35 }
darran 0:ac21159e27f4 36 sha1_context;
darran 0:ac21159e27f4 37
darran 0:ac21159e27f4 38 #ifdef __cplusplus
darran 0:ac21159e27f4 39 extern "C" {
darran 0:ac21159e27f4 40 #endif
darran 0:ac21159e27f4 41
darran 0:ac21159e27f4 42 /**
darran 0:ac21159e27f4 43 * \brief SHA-1 context setup
darran 0:ac21159e27f4 44 *
darran 0:ac21159e27f4 45 * \param ctx context to be initialized
darran 0:ac21159e27f4 46 */
darran 0:ac21159e27f4 47 void sha1_starts( sha1_context *ctx );
darran 0:ac21159e27f4 48
darran 0:ac21159e27f4 49 /**
darran 0:ac21159e27f4 50 * \brief SHA-1 process buffer
darran 0:ac21159e27f4 51 *
darran 0:ac21159e27f4 52 * \param ctx SHA-1 context
darran 0:ac21159e27f4 53 * \param input buffer holding the data
darran 0:ac21159e27f4 54 * \param ilen length of the input data
darran 0:ac21159e27f4 55 */
darran 0:ac21159e27f4 56 void sha1_update( sha1_context *ctx, const unsigned char *input, int ilen );
darran 0:ac21159e27f4 57
darran 0:ac21159e27f4 58 /**
darran 0:ac21159e27f4 59 * \brief SHA-1 final digest
darran 0:ac21159e27f4 60 *
darran 0:ac21159e27f4 61 * \param ctx SHA-1 context
darran 0:ac21159e27f4 62 * \param output SHA-1 checksum result
darran 0:ac21159e27f4 63 */
darran 0:ac21159e27f4 64 void sha1_finish( sha1_context *ctx, unsigned char output[20] );
darran 0:ac21159e27f4 65
darran 0:ac21159e27f4 66 /**
darran 0:ac21159e27f4 67 * \brief Output = SHA-1( input buffer )
darran 0:ac21159e27f4 68 *
darran 0:ac21159e27f4 69 * \param input buffer holding the data
darran 0:ac21159e27f4 70 * \param ilen length of the input data
darran 0:ac21159e27f4 71 * \param output SHA-1 checksum result
darran 0:ac21159e27f4 72 */
darran 0:ac21159e27f4 73 void sha1( const unsigned char *input, int ilen, unsigned char output[20] );
darran 0:ac21159e27f4 74
darran 0:ac21159e27f4 75 #if 0 //No need for that
darran 0:ac21159e27f4 76 /**
darran 0:ac21159e27f4 77 * \brief Output = SHA-1( file contents )
darran 0:ac21159e27f4 78 *
darran 0:ac21159e27f4 79 * \param path input file name
darran 0:ac21159e27f4 80 * \param output SHA-1 checksum result
darran 0:ac21159e27f4 81 *
darran 0:ac21159e27f4 82 * \return 0 if successful, 1 if fopen failed,
darran 0:ac21159e27f4 83 * or 2 if fread failed
darran 0:ac21159e27f4 84 */
darran 0:ac21159e27f4 85 int sha1_file( const char *path, unsigned char output[20] );
darran 0:ac21159e27f4 86 #endif
darran 0:ac21159e27f4 87
darran 0:ac21159e27f4 88 /**
darran 0:ac21159e27f4 89 * \brief SHA-1 HMAC context setup
darran 0:ac21159e27f4 90 *
darran 0:ac21159e27f4 91 * \param ctx HMAC context to be initialized
darran 0:ac21159e27f4 92 * \param key HMAC secret key
darran 0:ac21159e27f4 93 * \param keylen length of the HMAC key
darran 0:ac21159e27f4 94 */
darran 0:ac21159e27f4 95 void sha1_hmac_starts( sha1_context *ctx, const unsigned char *key, int keylen );
darran 0:ac21159e27f4 96
darran 0:ac21159e27f4 97 /**
darran 0:ac21159e27f4 98 * \brief SHA-1 HMAC process buffer
darran 0:ac21159e27f4 99 *
darran 0:ac21159e27f4 100 * \param ctx HMAC context
darran 0:ac21159e27f4 101 * \param input buffer holding the data
darran 0:ac21159e27f4 102 * \param ilen length of the input data
darran 0:ac21159e27f4 103 */
darran 0:ac21159e27f4 104 void sha1_hmac_update( sha1_context *ctx, const unsigned char *input, int ilen );
darran 0:ac21159e27f4 105
darran 0:ac21159e27f4 106 /**
darran 0:ac21159e27f4 107 * \brief SHA-1 HMAC final digest
darran 0:ac21159e27f4 108 *
darran 0:ac21159e27f4 109 * \param ctx HMAC context
darran 0:ac21159e27f4 110 * \param output SHA-1 HMAC checksum result
darran 0:ac21159e27f4 111 */
darran 0:ac21159e27f4 112 void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] );
darran 0:ac21159e27f4 113
darran 0:ac21159e27f4 114 /**
darran 0:ac21159e27f4 115 * \brief SHA-1 HMAC context reset
darran 0:ac21159e27f4 116 *
darran 0:ac21159e27f4 117 * \param ctx HMAC context to be reset
darran 0:ac21159e27f4 118 */
darran 0:ac21159e27f4 119 void sha1_hmac_reset( sha1_context *ctx );
darran 0:ac21159e27f4 120
darran 0:ac21159e27f4 121 /**
darran 0:ac21159e27f4 122 * \brief Output = HMAC-SHA-1( hmac key, input buffer )
darran 0:ac21159e27f4 123 *
darran 0:ac21159e27f4 124 * \param key HMAC secret key
darran 0:ac21159e27f4 125 * \param keylen length of the HMAC key
darran 0:ac21159e27f4 126 * \param input buffer holding the data
darran 0:ac21159e27f4 127 * \param ilen length of the input data
darran 0:ac21159e27f4 128 * \param output HMAC-SHA-1 result
darran 0:ac21159e27f4 129 */
darran 0:ac21159e27f4 130 void sha1_hmac( const unsigned char *key, int keylen,
darran 0:ac21159e27f4 131 const unsigned char *input, int ilen,
darran 0:ac21159e27f4 132 unsigned char output[20] );
darran 0:ac21159e27f4 133
darran 0:ac21159e27f4 134 /**
darran 0:ac21159e27f4 135 * \brief Checkup routine
darran 0:ac21159e27f4 136 *
darran 0:ac21159e27f4 137 * \return 0 if successful, or 1 if the test failed
darran 0:ac21159e27f4 138 */
darran 0:ac21159e27f4 139 int sha1_self_test( int verbose );
darran 0:ac21159e27f4 140
darran 0:ac21159e27f4 141 #ifdef __cplusplus
darran 0:ac21159e27f4 142 }
darran 0:ac21159e27f4 143 #endif
darran 0:ac21159e27f4 144
darran 0:ac21159e27f4 145 #endif /* sha1.h */