| 1 | /* |
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| 2 | Copyright (C) 1999 Aladdin Enterprises. All rights reserved. |
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| 3 | |
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| 4 | This software is provided 'as-is', without any express or implied |
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| 5 | warranty. In no event will the authors be held liable for any damages |
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| 6 | arising from the use of this software. |
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| 7 | |
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| 8 | Permission is granted to anyone to use this software for any purpose, |
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| 9 | including commercial applications, and to alter it and redistribute it |
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| 10 | freely, subject to the following restrictions: |
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| 11 | |
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| 12 | 1. The origin of this software must not be misrepresented; you must not |
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| 13 | claim that you wrote the original software. If you use this software |
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| 14 | in a product, an acknowledgment in the product documentation would be |
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| 15 | appreciated but is not required. |
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| 16 | 2. Altered source versions must be plainly marked as such, and must not be |
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| 17 | misrepresented as being the original software. |
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| 18 | 3. This notice may not be removed or altered from any source distribution. |
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| 19 | |
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| 20 | L. Peter Deutsch |
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| 21 | ghost@aladdin.com |
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| 22 | |
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| 23 | */ |
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| 24 | /* |
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| 25 | Independent implementation of MD5 (RFC 1321). |
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| 26 | |
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| 27 | This code implements the MD5 Algorithm defined in RFC 1321. |
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| 28 | It is derived directly from the text of the RFC and not from the |
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| 29 | reference implementation. |
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| 30 | |
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| 31 | The original and principal author of md5.h is L. Peter Deutsch |
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| 32 | <ghost@aladdin.com>. Other authors are noted in the change history |
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| 33 | that follows (in reverse chronological order): |
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| 34 | |
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| 35 | 2004-03-09 Jelmer Vernooij add G_MODULE_EXPORT for Bitlbee |
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| 36 | 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. |
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| 37 | 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); |
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| 38 | added conditionalization for C++ compilation from Martin |
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| 39 | Purschke <purschke@bnl.gov>. |
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| 40 | 1999-05-03 lpd Original version. |
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| 41 | */ |
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| 42 | |
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| 43 | #ifndef md5_INCLUDED |
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| 44 | # define md5_INCLUDED |
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| 45 | |
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| 46 | #include <glib.h> |
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| 47 | #include <gmodule.h> |
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| 48 | |
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| 49 | /* |
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| 50 | * This code has some adaptations for the Ghostscript environment, but it |
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| 51 | * will compile and run correctly in any environment with 8-bit chars and |
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| 52 | * 32-bit ints. Specifically, it assumes that if the following are |
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| 53 | * defined, they have the same meaning as in Ghostscript: P1, P2, P3, |
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| 54 | * ARCH_IS_BIG_ENDIAN. |
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| 55 | */ |
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| 56 | |
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| 57 | typedef unsigned char md5_byte_t; /* 8-bit byte */ |
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| 58 | typedef unsigned int md5_word_t; /* 32-bit word */ |
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| 59 | |
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| 60 | /* Define the state of the MD5 Algorithm. */ |
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| 61 | typedef struct md5_state_s { |
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| 62 | md5_word_t count[2]; /* message length in bits, lsw first */ |
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| 63 | md5_word_t abcd[4]; /* digest buffer */ |
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| 64 | md5_byte_t buf[64]; /* accumulate block */ |
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| 65 | } md5_state_t; |
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| 66 | |
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| 67 | #ifdef __cplusplus |
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| 68 | extern "C" |
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| 69 | { |
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| 70 | #endif |
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| 71 | |
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| 72 | /* Initialize the algorithm. */ |
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| 73 | G_MODULE_EXPORT void md5_init(md5_state_t *pms); |
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| 74 | |
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| 75 | /* Append a string to the message. */ |
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| 76 | G_MODULE_EXPORT void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes); |
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| 77 | |
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| 78 | /* Finish the message and return the digest. */ |
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| 79 | G_MODULE_EXPORT void md5_finish(md5_state_t *pms, md5_byte_t digest[16]); |
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| 80 | |
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| 81 | #ifdef __cplusplus |
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| 82 | } /* end extern "C" */ |
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| 83 | #endif |
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| 84 | |
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| 85 | #endif /* md5_INCLUDED */ |
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