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/*************************************************
* Square Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_SQUARE_H__
#define BOTAN_SQUARE_H__
#include <botan/block_cipher.h>
namespace Botan {
/*************************************************
* Square *
*************************************************/
class BOTAN_DLL Square : public BlockCipher
{
public:
void clear() throw();
std::string name() const { return "Square"; }
BlockCipher* clone() const { return new Square; }
Square() : BlockCipher(16, 16) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key_schedule(const byte[], u32bit);
static void transform(u32bit[4]);
static const byte SE[256];
static const byte SD[256];
static const byte Log[256];
static const byte ALog[255];
static const u32bit TE0[256];
static const u32bit TE1[256];
static const u32bit TE2[256];
static const u32bit TE3[256];
static const u32bit TD0[256];
static const u32bit TD1[256];
static const u32bit TD2[256];
static const u32bit TD3[256];
SecureBuffer<u32bit, 28> EK, DK;
SecureBuffer<byte, 32> ME, MD;
};
}
#endif
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