MD5.h
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 /* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
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 #if defined(_WIN32) && !defined(USCXML_STATIC)
54 # ifdef USCXML_EXPORT
55 # define USCXML_API __declspec(dllexport)
56 # else
57 # define USCXML_API __declspec(dllimport)
58 # endif
59 #else
60 # define USCXML_API
61 #endif
62 
63 #ifdef __cplusplus
64 extern "C" {
65 #endif
66 
67 /*
68  * This package supports both compile-time and run-time determination of CPU
69  * byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
70  * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
71  * defined as non-zero, the code will be compiled to run only on big-endian
72  * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
73  * run on either big- or little-endian CPUs, but will run slightly less
74  * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
75  */
76 
77 typedef unsigned char md5_byte_t; /* 8-bit byte */
78 typedef unsigned int md5_word_t; /* 32-bit word */
79 
80 /* Define the state of the MD5 Algorithm. */
81 typedef struct md5_state_s {
82  md5_word_t count[2]; /* message length in bits, lsw first */
83  md5_word_t abcd[4]; /* digest buffer */
84  md5_byte_t buf[64]; /* accumulate block */
85 } md5_state_t;
86 
87 
88 /* Initialize the algorithm. */
89 USCXML_API void md5_init(md5_state_t *pms);
90 
91 /* Append a string to the message. */
92 USCXML_API void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
93 
94 /* Finish the message and return the digest. */
95 USCXML_API void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
96 
97 #ifdef __cplusplus
98 } /* end extern "C" */
99 #endif
100 
101 #endif /* md5_INCLUDED */
md5_state_s
Definition: MD5.h:81