#ifndef CRYPTOPP_GOST_H
#define CRYPTOPP_GOST_H
/** \file
*/
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
struct GOST_Info : public FixedBlockSize<8>, public FixedKeyLength<32>
{
static const char *StaticAlgorithmName() {return "GOST";}
};
/// GOST
class GOST : public GOST_Info, public BlockCipherDocumentation
{
class Base : public BlockCipherBaseTemplate
{
public:
void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
protected:
static void PrecalculateSTable();
static const byte sBox[8][16];
static bool sTableCalculated;
static word32 sTable[4][256];
FixedSizeSecBlock key;
};
class Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
class Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
public:
typedef BlockCipherTemplate Encryption;
typedef BlockCipherTemplate Decryption;
};
typedef GOST::Encryption GOSTEncryption;
typedef GOST::Decryption GOSTDecryption;
NAMESPACE_END
#endif