92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
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/*
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Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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L. Peter Deutsch
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ghost@aladdin.com
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*/
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/* $Id$ */
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/*
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Independent implementation of MD5 (RFC 1321).
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This code implements the MD5 Algorithm defined in RFC 1321, whose
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text is available at
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http://www.ietf.org/rfc/rfc1321.txt
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The code is derived from the text of the RFC, including the test suite
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(section A.5) but excluding the rest of Appendix A. It does not include
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any code or documentation that is identified in the RFC as being
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copyrighted.
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The original and principal author of md5.h is L. Peter Deutsch
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<ghost@aladdin.com>. Other authors are noted in the change history
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that follows (in reverse chronological order):
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2002-04-13 lpd Removed support for non-ANSI compilers; removed
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references to Ghostscript; clarified derivation from RFC 1321;
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now handles byte order either statically or dynamically.
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1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
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1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
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added conditionalization for C++ compilation from Martin
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Purschke <purschke@bnl.gov>.
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1999-05-03 lpd Original version.
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*/
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#ifndef md5_INCLUDED
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# define md5_INCLUDED
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/*
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* This package supports both compile-time and run-time determination of CPU
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* byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
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* compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
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* defined as non-zero, the code will be compiled to run only on big-endian
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* CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
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* run on either big- or little-endian CPUs, but will run slightly less
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* efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
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*/
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typedef unsigned char md5_byte_t; /* 8-bit byte */
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typedef unsigned int md5_word_t; /* 32-bit word */
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/* Define the state of the MD5 Algorithm. */
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typedef struct md5_state_s {
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md5_word_t count[2]; /* message length in bits, lsw first */
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md5_word_t abcd[4]; /* digest buffer */
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md5_byte_t buf[64]; /* accumulate block */
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} md5_state_t;
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* Initialize the algorithm. */
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void md5_init(md5_state_t *pms);
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/* Append a string to the message. */
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void md5_append(md5_state_t *pms, const md5_byte_t *data, size_t nbytes);
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/* Finish the message and return the digest. */
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void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
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#ifdef __cplusplus
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} /* end extern "C" */
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#endif
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#endif /* md5_INCLUDED */
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