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/*
Copyright (c) 2005, 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 02110-1335 USA.
*/
/* rabbit.hpp defines Rabbit
*/
#ifndef TAO_CRYPT_RABBIT_HPP
#define TAO_CRYPT_RABBIT_HPP
#include "misc.hpp"
namespace TaoCrypt {
// Rabbit encryption and decryption
class Rabbit {
public:
typedef Rabbit Encryption;
typedef Rabbit Decryption;
enum RabbitCtx { Master = 0, Work = 1 };
Rabbit() {}
void Process(byte*, const byte*, word32);
void SetKey(const byte*, const byte*);
private:
struct Ctx {
word32 x[8];
word32 c[8];
word32 carry;
};
Ctx masterCtx_;
Ctx workCtx_;
void NextState(RabbitCtx);
void SetIV(const byte*);
Rabbit(const Rabbit&); // hide copy
const Rabbit operator=(const Rabbit&); // and assign
};
} // namespace
#endif // TAO_CRYPT_RABBIT_HPP
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