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/*
Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the License.
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; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301 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 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
void AsmProcess(byte*, const byte*, word32);
};
} // namespace
#endif // TAO_CRYPT_ARC4_HPP
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