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/*************************************************
* RC2 Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_RC2_H__
#define BOTAN_RC2_H__
#include <botan/base.h>
namespace Botan {
/*************************************************
* RC2 *
*************************************************/
class RC2 : public BlockCipher
{
public:
static byte EKB_code(u32bit);
void clear() throw() { K.clear(); }
std::string name() const { return "RC2"; }
BlockCipher* clone() const { return new RC2; }
RC2() : BlockCipher(8, 1, 32) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key(const byte[], u32bit);
void mash(u16bit&, u16bit&, u16bit&, u16bit&) const;
void rmash(u16bit&, u16bit&, u16bit&, u16bit&) const;
void mix(u16bit&, u16bit&, u16bit&, u16bit&, u32bit) const;
void rmix(u16bit&, u16bit&, u16bit&, u16bit&, u32bit) const;
SecureBuffer<u16bit, 64> K;
};
}
#endif
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