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/*
* RC2
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_RC2_H__
#define BOTAN_RC2_H__
#include <botan/block_cipher.h>
namespace Botan {
/**
* RC2
*/
class BOTAN_DLL RC2 : 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;
/**
* Return the code of the effective key bits
* @param bits key length
* @return EKB code
*/
static byte EKB_code(size_t bits);
void clear() { zeroise(K); }
std::string name() const { return "RC2"; }
BlockCipher* clone() const { return new RC2; }
RC2() : BlockCipher_Fixed_Block_Size(1, 32), K(64) {}
private:
void key_schedule(const byte[], size_t);
SecureVector<u16bit> K;
};
}
#endif
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