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 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
36 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
37 added conditionalization for C++ compilation from Martin
38 Purschke <purschke@bnl.gov>.
39 1999-05-03 lpd Original version.
40 */
41
42 /* $OrigId: md5.h,v 1.2 2001/03/26 08:57:14 matz Exp $ */
43 /* $RoughId: md5.h,v 1.3 2002/02/24 08:14:31 knu Exp $ */
44 /* $Id: md5.h,v 1.2 2002/02/24 08:20:22 knu Exp $ */
45
46 #ifndef MD5_INCLUDED
47 # define MD5_INCLUDED
48
49 #include "defs.h"
50
51 /*
52 * This code has some adaptations for the Ghostscript environment, but it
53 * will compile and run correctly in any environment with 8-bit chars and
54 * 32-bit ints. Specifically, it assumes that if the following are
55 * defined, they have the same meaning as in Ghostscript: P1, P2, P3.
56 */
57
58 /* Define the state of the MD5 Algorithm. */
59 typedef struct md5_state_s {
60 uint32_t count[2]; /* message length in bits, lsw first */
61 uint32_t state[4]; /* digest buffer */
62 uint8_t buffer[64]; /* accumulate block */
63 } MD5_CTX;
64
65 #ifdef RUBY
66 #define MD5_Init rb_Digest_MD5_Init
67 #define MD5_Update rb_Digest_MD5_Update
68 #define MD5_Final rb_Digest_MD5_Final
69 #define MD5_End rb_Digest_MD5_End
70 #define MD5_Equal rb_Digest_MD5_Equal
71 #endif
72
73 void MD5_Init _((MD5_CTX *pms));
74 void MD5_Update _((MD5_CTX *pms, const uint8_t *data, size_t nbytes));
75 void MD5_Final _((uint8_t *digest, MD5_CTX *pms));
76 void MD5_End _((MD5_CTX *pctx, uint8_t *hexdigest));
77 int MD5_Equal _((MD5_CTX *pctx1, MD5_CTX *pctx2));
78
79 #define MD5_BLOCK_LENGTH 64
80 #define MD5_DIGEST_LENGTH 16
81 #define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1)
82
83 #endif /* MD5_INCLUDED */