project_files/frontlib/md5/md5.h
author Medo <smaxein@googlemail.com>
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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: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
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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, int 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 */