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include/platform/hash/md5.h

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+/*
+
+	Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
+
+	This software is provided 'as-is', without any express or implied
+	warranty.  In no event will the authors be held liable for any damages
+	arising from the use of this software.
+
+	Permission is granted to anyone to use this software for any purpose,
+	including commercial applications, and to alter it and redistribute it
+	freely, subject to the following restrictions:
+
+	1.	The origin of this software must not be misrepresented; you must not
+		claim that you wrote the original software. If you use this software
+		in a product, an acknowledgment in the product documentation would be
+		appreciated but is not required.
+
+	2.	Altered source versions must be plainly marked as such, and must not be
+		misrepresented as being the original software.
+
+	3.	This notice may not be removed or altered from any source distribution.
+
+	L. Peter Deutsch
+	ghost@aladdin.com
+
+*/
+
+/*	$Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $	*/
+
+/*
+	Independent implementation of MD5 (RFC 1321).
+
+	This code implements the MD5 Algorithm defined in RFC 1321, whose
+	text is available at
+	http://www.ietf.org/rfc/rfc1321.txt
+	The code is derived from the text of the RFC, including the test suite
+	(section A.5) but excluding the rest of Appendix A.  It does not include
+	any code or documentation that is identified in the RFC as being
+	copyrighted.
+
+	The original and principal author of md5.h is L. Peter Deutsch
+	<ghost@aladdin.com>.  Other authors are noted in the change history
+	that follows (in reverse chronological order):
+
+	2002-04-13 lpd Removed support for non-ANSI compilers; removed
+	references to Ghostscript; clarified derivation from RFC 1321;
+	now handles byte order either statically or dynamically.
+	1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+	1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
+	added conditionalization for C++ compilation from Martin
+	Purschke <purschke@bnl.gov>.
+	1999-05-03 lpd Original version.
+*/
+
+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+#ifndef	__NMD5__
+#define	__NMD5__
+
+
+namespace GS {
+	namespace MD5 {
+
+/*
+	This package supports both compile-time and run-time determination of CPU
+	byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
+	compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
+	defined as non-zero, the code will be compiled to run only on big-endian
+	CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
+	run on either big- or little-endian CPUs, but will run slightly less
+	efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
+*/
+
+typedef	unsigned char	md5_byte_t;		// 8-bit byte
+typedef	unsigned int	md5_word_t;		// 32-bit word
+
+/*
+	@short	MD5 digest.
+*/
+class	Digest
+{
+		md5_word_t	count[2],		///< Message length in bits, lsw first.
+					abcd[4];		///< Digest buffer.
+		md5_byte_t	buf[64];		///< Accumulate block.
+
+		/// Process.
+		void		Process(const md5_byte_t *data /*[64]*/);
+
+public:
+
+		void		Reset();
+
+		/// Append data to the message.
+		void		Append(const md5_byte_t *data, int nbytes);
+		/// Finish the message and return the digest.
+		void		Finish(md5_byte_t digest[16]);
+
+		Digest() { Reset(); }
+};
+
+/*!
+	@short	Convert a digest to string.
+	@note	The string is not NULL terminated by this function.
+*/
+void	DigestToString(const md5_byte_t digest[16], char *s);
+
+	} // MD5
+} // GS
+
+
+#endif	// __NMD5__