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+/*
+Copyright (C) 2004-2007 Christian Wieninger
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+
+The author can be reached at cwieninger@gmx.de
+
+The project's page is at http://winni.vdr-developer.org/epgsearch
+*/
+
+/////////////////////////////////////////////////////////////////////////
+// MD5.cpp
+// Implementation file for MD5 class
+//
+// This C++ Class implementation of the original RSA Data Security, Inc.
+// MD5 Message-Digest Algorithm is copyright (c) 2002, Gary McNickle.
+// All rights reserved.  This software is a derivative of the "RSA Data
+//  Security, Inc. MD5 Message-Digest Algorithm"
+//
+// You may use this software free of any charge, but without any
+// warranty or implied warranty, provided that you follow the terms
+// of the original RSA copyright, listed below.
+//
+// Original RSA Data Security, Inc. Copyright notice
+/////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
+// rights reserved.
+//
+// License to copy and use this software is granted provided that it
+// is identified as the "RSA Data Security, Inc. MD5 Message-Digest
+// Algorithm" in all material mentioning or referencing this software
+// or this function.
+// License is also granted to make and use derivative works provided
+// that such works are identified as "derived from the RSA Data
+// Security, Inc. MD5 Message-Digest Algorithm" in all material
+// mentioning or referencing the derived work.
+// RSA Data Security, Inc. makes no representations concerning either
+// the merchantability of this software or the suitability of this
+// software for any particular purpose. It is provided "as is"
+// without express or implied warranty of any kind.
+// These notices must be retained in any copies of any part of this
+// documentation and/or software.
+/////////////////////////////////////////////////////////////////////////
+
+typedef unsigned       int uint4;
+typedef unsigned short int uint2;
+typedef unsigned      char uchar;
+
+char* PrintMD5(uchar md5Digest[16]);
+char* MD5String(char* szString);
+
+class md5
+{
+// Methods
+public:
+	md5() { Init(); }
+	void	Init();
+	void	Update(uchar* chInput, uint4 nInputLen);
+	void	Finalize();
+	uchar*	Digest() { return m_Digest; }
+
+private:
+
+	void	Transform(uchar* block);
+	void	Encode(uchar* dest, uint4* src, uint4 nLength);
+	void	Decode(uint4* dest, uchar* src, uint4 nLength);
+
+
+	inline	uint4	rotate_left(uint4 x, uint4 n)
+	                 { return ((x << n) | (x >> (32-n))); }
+
+	inline	uint4	F(uint4 x, uint4 y, uint4 z)
+	                 { return ((x & y) | (~x & z)); }
+
+	inline  uint4	G(uint4 x, uint4 y, uint4 z)
+	                 { return ((x & z) | (y & ~z)); }
+
+	inline  uint4	H(uint4 x, uint4 y, uint4 z)
+	                 { return (x ^ y ^ z); }
+
+	inline  uint4	I(uint4 x, uint4 y, uint4 z)
+	                 { return (y ^ (x | ~z)); }
+
+	inline	void	FF(uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac)
+	                 { a += F(b, c, d) + x + ac; a = rotate_left(a, s); a += b; }
+
+	inline	void	GG(uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac)
+                     { a += G(b, c, d) + x + ac; a = rotate_left(a, s); a += b; }
+
+	inline	void	HH(uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac)
+                     { a += H(b, c, d) + x + ac; a = rotate_left(a, s); a += b; }
+
+	inline	void	II(uint4& a, uint4 b, uint4 c, uint4 d, uint4 x, uint4 s, uint4 ac)
+                     { a += I(b, c, d) + x + ac; a = rotate_left(a, s); a += b; }
+
+// Data
+private:
+	uint4		m_State[4];
+	uint4		m_Count[2];
+	uchar		m_Buffer[64];
+	uchar		m_Digest[16];
+	uchar		m_Finalized;
+
+};