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/*
* DESX
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_DESX_H__
#define BOTAN_DESX_H__
#include <botan/des.h>
namespace Botan {
/**
* DESX
*/
class BOTAN_DLL DESX : public BlockCipher_Fixed_Block_Size<8>
{
public:
void encrypt_n(const byte in[], byte out[], size_t blocks) const;
void decrypt_n(const byte in[], byte out[], size_t blocks) const;
void clear() { des.clear(); zeroise(K1); zeroise(K2); }
std::string name() const { return "DESX"; }
BlockCipher* clone() const { return new DESX; }
DESX() : BlockCipher_Fixed_Block_Size(24), K1(8), K2(8) {}
private:
void key_schedule(const byte[], size_t);
SecureVector<byte> K1, K2;
DES des;
};
}
#endif
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