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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 02110-1301 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
+