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/src/core/md5/md5.h

http://github.com/imageworks/OpenColorIO
C++ Header | 97 lines | 18 code | 15 blank | 64 comment | 0 complexity | 46a9ad1d6ab5b1eea20ebc569c689420 MD5 | raw file
 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//  This file was altered for OCIO compilation purposes
51
52#ifndef INCLUDED_OCIO_md5_INCLUDED
53#define INCLUDED_OCIO_md5_INCLUDED
54
55
56#include <OpenColorIO/OpenColorIO.h>
57
58OCIO_NAMESPACE_ENTER
59{
60
61// Note: the md5 functions should not be wrapped in extern "C', otherwise
62// the symbols will not be appropriately wrapped in the OCIO namespace
63
64/*
65 * This package supports both compile-time and run-time determination of CPU
66 * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
67 * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
68 * defined as non-zero, the code will be compiled to run only on big-endian
69 * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
70 * run on either big- or little-endian CPUs, but will run slightly less
71 * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
72 */
73
74typedef unsigned char md5_byte_t; /* 8-bit byte */
75typedef unsigned int md5_word_t; /* 32-bit word */
76
77/* Define the state of the MD5 Algorithm. */
78typedef struct md5_state_s {
79    md5_word_t count[2];	/* message length in bits, lsw first */
80    md5_word_t abcd[4];		/* digest buffer */
81    md5_byte_t buf[64];		/* accumulate block */
82} md5_state_t;
83
84/* Initialize the algorithm. */
85void md5_init(md5_state_t *pms);
86
87/* Append a string to the message. */
88void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
89
90/* Finish the message and return the digest. */
91void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
92
93
94}
95OCIO_NAMESPACE_EXIT
96
97#endif /* md5_INCLUDED */