129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_MD5_H
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#define NL_MD5_H
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#include "types_nl.h"
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#include <string>
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namespace NLMISC
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{
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class IStream;
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// ****************************************************************************
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/**
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* MD5 Low level routines
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* Largely inspired from the RSA Data Security works
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* \author Matthieu Besson
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* \author Nevrax France
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* \date July 2004
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*/
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/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
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rights reserved.
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License to copy and use this software is granted provided that it
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is identified as the "RSA Data Security, Inc. MD5 Message-Digest
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Algorithm" in all material mentioning or referencing this software
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or this function.
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License is also granted to make and use derivative works provided
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that such works are identified as "derived from the RSA Data
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Security, Inc. MD5 Message-Digest Algorithm" in all material
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mentioning or referencing the derived work.
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RSA Data Security, Inc. makes no representations concerning either
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the merchantability of this software or the suitability of this
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software for any particular purpose. It is provided "as is"
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without express or implied warranty of any kind.
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These notices must be retained in any copies of any part of this
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documentation and/or software.
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*/
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// ****************************************************************************
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struct CHashKeyMD5
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{
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uint8 Data[16];
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void clear();
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std::string toString() const;
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bool fromString(const std::string &in);
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bool operator==(const CHashKeyMD5 &in) const;
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bool operator!=(const CHashKeyMD5 &in) const;
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bool operator<(const CHashKeyMD5 &in) const;
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void serial (NLMISC::IStream &s);
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};
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// ****************************************************************************
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class CMD5Context
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{
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public:
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void init();
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void update (const uint8 *pBufIn, uint32 nBufLength);
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void final (CHashKeyMD5 &out);
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private:
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uint32 State[4]; // state (ABCD)
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uint32 Count[2]; // number of bits, modulo 2^64 (lsb first)
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uint8 Buffer[64]; // input buffer
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static uint8 Padding[64];
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private:
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void transform (uint32 state[4], const uint8 block[64]);
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void encode (uint8 *output, const uint32 *input, uint len);
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void decode (uint32 *output, const uint8 *input, uint len);
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};
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// ****************************************************************************
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/**
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* MD5 High level routines
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* Largely inspired from the RSA Data Security works
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* \author Matthieu Besson
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* \author Nevrax France
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* \date July 2004
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*/
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/*
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inline bool operator <(const struct CHashKeyMD5 &a,const struct CHashKeyMD5 &b)
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{
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return a < b;
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}
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*/
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// This function get a filename (it works with big files) and returns his MD5 hash key
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CHashKeyMD5 getMD5(const std::string &filename);
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// This function get a buffer with size and returns his MD5 hash key
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CHashKeyMD5 getMD5(const uint8 *buffer, uint32 size);
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}; // namespace NLMISC
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#endif // NL_MD5_H
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/* End of md5.h */
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