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MySQL 5.1: mysql/src/5.1-dbg/extra/yassl/taocrypt/include/arc4.hpp Source File

mysql/src/5.1-dbg/extra/yassl/taocrypt/include/arc4.hpp

00001 /* arc4.hpp                                
00002  *
00003  * Copyright (C) 2003 Sawtooth Consulting Ltd.
00004  *
00005  * This file is part of yaSSL.
00006  *
00007  * yaSSL is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2 of the License, or
00010  * (at your option) any later version.
00011  *
00012  * There are special exceptions to the terms and conditions of the GPL as it
00013  * is applied to yaSSL. View the full text of the exception in the file
00014  * FLOSS-EXCEPTIONS in the directory of this software distribution.
00015  *
00016  * yaSSL is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU General Public License
00022  * along with this program; if not, write to the Free Software
00023  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
00024  */
00025 
00026 /* arc4.hpp defines ARC4
00027 */
00028 
00029 
00030 #ifndef TAO_CRYPT_ARC4_HPP
00031 #define TAO_CRYPT_ARC4_HPP
00032 
00033 #include "misc.hpp"
00034 
00035 namespace TaoCrypt {
00036 
00037 
00038 // ARC4 encryption and decryption
00039 class ARC4 {
00040 public:
00041     enum { STATE_SIZE = 256 };
00042 
00043     typedef ARC4 Encryption;
00044     typedef ARC4 Decryption;
00045 
00046     ARC4() {}
00047 
00048     void Process(byte*, const byte*, word32);
00049     void AsmProcess(byte*, const byte*, word32);
00050     void SetKey(const byte*, word32);
00051 private:
00052     byte x_;
00053     byte y_;
00054     byte state_[STATE_SIZE];
00055 
00056     ARC4(const ARC4&);                  // hide copy
00057     const ARC4 operator=(const ARC4&);  // and assign
00058 };
00059 
00060 } // namespace
00061 
00062 
00063 #endif // TAO_CRYPT_ARC4_HPP
00064

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