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/*
* SEED
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_SEED_H__
#define BOTAN_SEED_H__
#include <botan/block_cipher.h>
namespace Botan {
/**
* SEED, a Korean block cipher
*/
class BOTAN_DLL SEED : public BlockCipher
{
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() { zeroise(K); }
std::string name() const { return "SEED"; }
BlockCipher* clone() const { return new SEED; }
SEED() : BlockCipher(16, 16), K(32) {}
private:
void key_schedule(const byte[], u32bit);
class G_FUNC
{
public:
u32bit operator()(u32bit) const;
private:
static const u32bit S0[256], S1[256], S2[256], S3[256];
};
SecureVector<u32bit> K;
};
}
#endif
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