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/* arc4.hpp
*
* Copyright (C) 2003 Sawtooth Consulting Ltd.
*
* This file is part of yaSSL.
*
* yaSSL 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.
*
* There are special exceptions to the terms and conditions of the GPL as it
* is applied to yaSSL. View the full text of the exception in the file
* FLOSS-EXCEPTIONS in the directory of this software distribution.
*
* yaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/* arc4.hpp defines ARC4
*/
#ifndef TAO_CRYPT_ARC4_HPP
#define TAO_CRYPT_ARC4_HPP
#include "misc.hpp"
namespace TaoCrypt {
// ARC4 encryption and decryption
class ARC4 {
public:
enum { STATE_SIZE = 256 };
typedef ARC4 Encryption;
typedef ARC4 Decryption;
ARC4() {}
void Process(byte*, const byte*, word32);
void AsmProcess(byte*, const byte*, word32);
void SetKey(const byte*, word32);
private:
byte x_;
byte y_;
byte state_[STATE_SIZE];
ARC4(const ARC4&); // hide copy
const ARC4 operator=(const ARC4&); // and assign
};
} // namespace
#endif // TAO_CRYPT_ARC4_HPP
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