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/*************************************************
* Skipjack Header File *
* (C) 1999-2007 The Botan Project *
*************************************************/
#ifndef BOTAN_SKIPJACK_H__
#define BOTAN_SKIPJACK_H__
#include <botan/base.h>
namespace Botan {
/*************************************************
* Skipjack *
*************************************************/
class Skipjack : public BlockCipher
{
public:
void clear() throw();
std::string name() const { return "Skipjack"; }
BlockCipher* clone() const { return new Skipjack; }
Skipjack() : BlockCipher(8, 10) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key(const byte[], u32bit);
void step_A(u16bit&, u16bit&, u32bit) const;
void step_B(u16bit&, u16bit&, u32bit) const;
void step_Ai(u16bit&, u16bit&, u32bit) const;
void step_Bi(u16bit&, u16bit&, u32bit) const;
SecureBuffer<byte, 256> FTABLE[10];
};
}
#endif
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