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 |