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#ifndef CRYPTOPP_SKIPJACK_H
#define CRYPTOPP_SKIPJACK_H
/** \file
*/
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
struct SKIPJACK_Info : public FixedBlockSize<8>, public FixedKeyLength<10>
{
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "SKIPJACK";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#SKIPJACK">SKIPJACK</a>
class SKIPJACK : public SKIPJACK_Info, public BlockCipherDocumentation
{
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SKIPJACK_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
protected:
static const byte fTable[256];
FixedSizeSecBlock<byte[256], 10> tab;
};
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
private:
static const byte Se[256];
static const word32 Te[4][256];
};
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
private:
static const byte Sd[256];
static const word32 Td[4][256];
};
public:
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
typedef SKIPJACK::Encryption SKIPJACKEncryption;
typedef SKIPJACK::Decryption SKIPJACKDecryption;
NAMESPACE_END
#endif
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