blob: 7cec16cd88eca2c987bfab2cc7cdbff121174463
| 1 | /* |
| 2 | Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved. |
| 3 | |
| 4 | This software is provided 'as-is', without any express or implied |
| 5 | warranty. In no event will the authors be held liable for any damages |
| 6 | arising from the use of this software. |
| 7 | |
| 8 | Permission is granted to anyone to use this software for any purpose, |
| 9 | including commercial applications, and to alter it and redistribute it |
| 10 | freely, subject to the following restrictions: |
| 11 | |
| 12 | 1. The origin of this software must not be misrepresented; you must not |
| 13 | claim that you wrote the original software. If you use this software |
| 14 | in a product, an acknowledgment in the product documentation would be |
| 15 | appreciated but is not required. |
| 16 | 2. Altered source versions must be plainly marked as such, and must not be |
| 17 | misrepresented as being the original software. |
| 18 | 3. This notice may not be removed or altered from any source distribution. |
| 19 | |
| 20 | L. Peter Deutsch |
| 21 | ghost@aladdin.com |
| 22 | |
| 23 | */ |
| 24 | |
| 25 | /* |
| 26 | Independent implementation of MD5 (RFC 1321). |
| 27 | |
| 28 | This code implements the MD5 Algorithm defined in RFC 1321, whose |
| 29 | text is available at |
| 30 | http://www.ietf.org/rfc/rfc1321.txt |
| 31 | The code is derived from the text of the RFC, including the test suite |
| 32 | (section A.5) but excluding the rest of Appendix A. It does not include |
| 33 | any code or documentation that is identified in the RFC as being |
| 34 | copyrighted. |
| 35 | |
| 36 | The original and principal author of md5.h is L. Peter Deutsch |
| 37 | <ghost@aladdin.com>. Other authors are noted in the change history |
| 38 | that follows (in reverse chronological order): |
| 39 | |
| 40 | 2002-04-13 lpd Removed support for non-ANSI compilers; removed |
| 41 | references to Ghostscript; clarified derivation from RFC 1321; |
| 42 | now handles byte order either statically or dynamically. |
| 43 | 1999-11-04 lpd Edited comments slightly for automatic TOC extraction. |
| 44 | 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5); |
| 45 | added conditionalization for C++ compilation from Martin |
| 46 | Purschke <purschke@bnl.gov>. |
| 47 | 1999-05-03 lpd Original version. |
| 48 | */ |
| 49 | |
| 50 | #ifndef md5_INCLUDED |
| 51 | # define md5_INCLUDED |
| 52 | |
| 53 | |
| 54 | #include "helix_types.h" |
| 55 | /* |
| 56 | * These should cause all callers and callees of the md5_ |
| 57 | * function names to use a unique Helix specific name space |
| 58 | * of HX_md5_xxx. This will facilitate the inclusion of our |
| 59 | * code into code bases that also use the md5_ functions. |
| 60 | */ |
| 61 | |
| 62 | #define md5_init HX_md5_init |
| 63 | #define md5_append HX_md5_append |
| 64 | #define md5_finish HX_md5_finish |
| 65 | #define MD5End HX_MD5End |
| 66 | #define MD5Data HX_MD5Data |
| 67 | |
| 68 | |
| 69 | /* |
| 70 | * This package supports both compile-time and run-time determination of CPU |
| 71 | * byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be |
| 72 | * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is |
| 73 | * defined as non-zero, the code will be compiled to run only on big-endian |
| 74 | * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to |
| 75 | * run on either big- or little-endian CPUs, but will run slightly less |
| 76 | * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined. |
| 77 | */ |
| 78 | |
| 79 | typedef unsigned char md5_byte_t; /* 8-bit byte */ |
| 80 | typedef unsigned int md5_word_t; /* 32-bit word */ |
| 81 | |
| 82 | /* Define the state of the MD5 Algorithm. */ |
| 83 | typedef struct md5_state_s { |
| 84 | md5_word_t count[2]; /* message length in bits, lsw first */ |
| 85 | md5_word_t abcd[4]; /* digest buffer */ |
| 86 | md5_byte_t buf[64]; /* accumulate block */ |
| 87 | } md5_state_t; |
| 88 | |
| 89 | #ifdef __cplusplus |
| 90 | extern "C" |
| 91 | { |
| 92 | #endif |
| 93 | |
| 94 | /* Initialize the algorithm. */ |
| 95 | void md5_init(md5_state_t *pms); |
| 96 | |
| 97 | /* Append a string to the message. */ |
| 98 | void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes); |
| 99 | |
| 100 | /* Finish the message and return the digest. */ |
| 101 | /* changed order to match expected usage. */ |
| 102 | void md5_finish(md5_byte_t digest[16], md5_state_t *pms); |
| 103 | |
| 104 | |
| 105 | char * MD5End(md5_state_t *ctx, char *p); |
| 106 | char * MD5Data(char *, const unsigned char *, unsigned int); |
| 107 | |
| 108 | |
| 109 | #ifdef __cplusplus |
| 110 | } /* end extern "C" */ |
| 111 | #endif |
| 112 | |
| 113 | #endif /* md5_INCLUDED */ |
| 114 |