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| 5496 | leency | 1 | /** |
| 2 | * \file md5.h |
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| 3 | * |
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| 4 | * \brief MD5 message digest algorithm (hash function) |
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| 5 | * |
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| 6 | * Copyright (C) 2006-2010, Brainspark B.V. |
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| 7 | * |
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| 8 | * This file is part of PolarSSL (http://www.polarssl.org) |
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| 9 | * Lead Maintainer: Paul Bakker |
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| 10 | * |
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| 11 | * All rights reserved. |
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| 12 | * |
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| 13 | * This program is free software; you can redistribute it and/or modify |
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| 14 | * it under the terms of the GNU General Public License as published by |
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| 15 | * the Free Software Foundation; either version 2 of the License, or |
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| 16 | * (at your option) any later version. |
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| 17 | * |
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| 18 | * This program is distributed in the hope that it will be useful, |
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| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 21 | * GNU General Public License for more details. |
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| 22 | * |
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| 23 | * You should have received a copy of the GNU General Public License along |
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| 24 | * with this program; if not, write to the Free Software Foundation, Inc., |
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| 25 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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| 26 | */ |
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| 27 | #ifndef POLARSSL_MD5_H |
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| 28 | #define POLARSSL_MD5_H |
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| 29 | |||
| 30 | #include |
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| 31 | |||
| 32 | #ifdef _MSC_VER |
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| 33 | #include |
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| 34 | typedef UINT32 uint32_t; |
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| 35 | #else |
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| 36 | #include |
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| 37 | #endif |
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| 38 | |||
| 39 | #define POLARSSL_ERR_MD5_FILE_IO_ERROR -0x0074 /**< Read/write error in file. */ |
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| 40 | |||
| 41 | /** |
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| 42 | * \brief MD5 context structure |
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| 43 | */ |
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| 44 | typedef struct |
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| 45 | { |
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| 46 | uint32_t total[2]; /*!< number of bytes processed */ |
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| 47 | uint32_t state[4]; /*!< intermediate digest state */ |
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| 48 | unsigned char buffer[64]; /*!< data block being processed */ |
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| 49 | |||
| 50 | unsigned char ipad[64]; /*!< HMAC: inner padding */ |
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| 51 | unsigned char opad[64]; /*!< HMAC: outer padding */ |
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| 52 | } |
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| 53 | md5_context; |
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| 54 | |||
| 55 | #ifdef __cplusplus |
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| 56 | extern "C" { |
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| 57 | #endif |
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| 58 | |||
| 59 | /** |
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| 60 | * \brief MD5 context setup |
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| 61 | * |
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| 62 | * \param ctx context to be initialized |
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| 63 | */ |
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| 64 | void md5_starts( md5_context *ctx ); |
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| 65 | |||
| 66 | /** |
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| 67 | * \brief MD5 process buffer |
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| 68 | * |
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| 69 | * \param ctx MD5 context |
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| 70 | * \param input buffer holding the data |
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| 71 | * \param ilen length of the input data |
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| 72 | */ |
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| 73 | void md5_update( md5_context *ctx, const unsigned char *input, size_t ilen ); |
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| 74 | |||
| 75 | /** |
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| 76 | * \brief MD5 final digest |
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| 77 | * |
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| 78 | * \param ctx MD5 context |
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| 79 | * \param output MD5 checksum result |
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| 80 | */ |
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| 81 | void md5_finish( md5_context *ctx, unsigned char output[16] ); |
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| 82 | |||
| 83 | /** |
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| 84 | * \brief Output = MD5( input buffer ) |
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| 85 | * |
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| 86 | * \param input buffer holding the data |
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| 87 | * \param ilen length of the input data |
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| 88 | * \param output MD5 checksum result |
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| 89 | */ |
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| 90 | void md5( const unsigned char *input, size_t ilen, unsigned char output[16] ); |
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| 91 | |||
| 92 | /** |
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| 93 | * \brief Output = MD5( file contents ) |
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| 94 | * |
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| 95 | * \param path input file name |
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| 96 | * \param output MD5 checksum result |
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| 97 | * |
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| 98 | * \return 0 if successful, or POLARSSL_ERR_MD5_FILE_IO_ERROR |
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| 99 | */ |
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| 100 | int md5_file( const char *path, unsigned char output[16] ); |
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| 101 | |||
| 102 | /** |
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| 103 | * \brief MD5 HMAC context setup |
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| 104 | * |
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| 105 | * \param ctx HMAC context to be initialized |
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| 106 | * \param key HMAC secret key |
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| 107 | * \param keylen length of the HMAC key |
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| 108 | */ |
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| 109 | void md5_hmac_starts( md5_context *ctx, |
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| 110 | const unsigned char *key, size_t keylen ); |
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| 111 | |||
| 112 | /** |
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| 113 | * \brief MD5 HMAC process buffer |
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| 114 | * |
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| 115 | * \param ctx HMAC context |
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| 116 | * \param input buffer holding the data |
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| 117 | * \param ilen length of the input data |
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| 118 | */ |
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| 119 | void md5_hmac_update( md5_context *ctx, |
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| 120 | const unsigned char *input, size_t ilen ); |
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| 121 | |||
| 122 | /** |
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| 123 | * \brief MD5 HMAC final digest |
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| 124 | * |
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| 125 | * \param ctx HMAC context |
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| 126 | * \param output MD5 HMAC checksum result |
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| 127 | */ |
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| 128 | void md5_hmac_finish( md5_context *ctx, unsigned char output[16] ); |
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| 129 | |||
| 130 | /** |
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| 131 | * \brief MD5 HMAC context reset |
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| 132 | * |
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| 133 | * \param ctx HMAC context to be reset |
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| 134 | */ |
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| 135 | void md5_hmac_reset( md5_context *ctx ); |
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| 136 | |||
| 137 | /** |
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| 138 | * \brief Output = HMAC-MD5( hmac key, input buffer ) |
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| 139 | * |
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| 140 | * \param key HMAC secret key |
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| 141 | * \param keylen length of the HMAC key |
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| 142 | * \param input buffer holding the data |
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| 143 | * \param ilen length of the input data |
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| 144 | * \param output HMAC-MD5 result |
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| 145 | */ |
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| 146 | void md5_hmac( const unsigned char *key, size_t keylen, |
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| 147 | const unsigned char *input, size_t ilen, |
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| 148 | unsigned char output[16] ); |
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| 149 | |||
| 150 | /** |
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| 151 | * \brief Checkup routine |
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| 152 | * |
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| 153 | * \return 0 if successful, or 1 if the test failed |
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| 154 | */ |
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| 155 | int md5_self_test( int verbose ); |
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| 156 | |||
| 157 | /* Internal use */ |
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| 158 | void md5_process( md5_context *ctx, const unsigned char data[64] ); |
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| 159 | |||
| 160 | #ifdef __cplusplus |
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| 161 | } |
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| 162 | #endif |
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| 163 | |||
| 164 | #endif /* md5.h */ |