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/*
* RC5
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_RC5_H__
#define BOTAN_RC5_H__
#include <botan/block_cipher.h>
namespace Botan {
/**
* RC5
*/
class BOTAN_DLL RC5 : public Block_Cipher_Fixed_Params<8, 1, 32>
{
public:
void encrypt_n(const byte in[], byte out[], size_t blocks) const override;
void decrypt_n(const byte in[], byte out[], size_t blocks) const override;
void clear() override;
std::string name() const override;
BlockCipher* clone() const override { return new RC5(rounds); }
/**
* @param rounds the number of RC5 rounds to run. Must be between
* 8 and 32 and a multiple of 4.
*/
RC5(size_t rounds);
private:
void key_schedule(const byte[], size_t) override;
size_t rounds;
secure_vector<u32bit> S;
};
}
#endif
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