source: protocols/md5.h @ fcc2da9

Last change on this file since fcc2da9 was b7d3cc34, checked in by Wilmer van der Gaast <wilmer@…>, at 2005-11-06T18:23:18Z

Initial repository (0.99 release tree)

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1/*
2  Copyright (C) 1999 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  Independent implementation of MD5 (RFC 1321).
26
27  This code implements the MD5 Algorithm defined in RFC 1321.
28  It is derived directly from the text of the RFC and not from the
29  reference implementation.
30
31  The original and principal author of md5.h is L. Peter Deutsch
32  <ghost@aladdin.com>.  Other authors are noted in the change history
33  that follows (in reverse chronological order):
34
35  2004-03-09 Jelmer Vernooij add G_MODULE_EXPORT for Bitlbee
36  1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
37  1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
38        added conditionalization for C++ compilation from Martin
39        Purschke <purschke@bnl.gov>.
40  1999-05-03 lpd Original version.
41 */
42
43#ifndef md5_INCLUDED
44#  define md5_INCLUDED
45
46#include <glib.h>
47#include <gmodule.h>
48
49/*
50 * This code has some adaptations for the Ghostscript environment, but it
51 * will compile and run correctly in any environment with 8-bit chars and
52 * 32-bit ints.  Specifically, it assumes that if the following are
53 * defined, they have the same meaning as in Ghostscript: P1, P2, P3,
54 * ARCH_IS_BIG_ENDIAN.
55 */
56
57typedef unsigned char md5_byte_t; /* 8-bit byte */
58typedef unsigned int md5_word_t; /* 32-bit word */
59
60/* Define the state of the MD5 Algorithm. */
61typedef struct md5_state_s {
62    md5_word_t count[2];        /* message length in bits, lsw first */
63    md5_word_t abcd[4];         /* digest buffer */
64    md5_byte_t buf[64];         /* accumulate block */
65} md5_state_t;
66
67#ifdef __cplusplus
68extern "C" 
69{
70#endif
71
72/* Initialize the algorithm. */
73G_MODULE_EXPORT void md5_init(md5_state_t *pms);
74
75/* Append a string to the message. */
76G_MODULE_EXPORT void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
77
78/* Finish the message and return the digest. */
79G_MODULE_EXPORT void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
80
81#ifdef __cplusplus
82}  /* end extern "C" */
83#endif
84
85#endif /* md5_INCLUDED */
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