mirror of
https://github.com/shadps4-emu/ext-cryptopp.git
synced 2024-12-03 16:00:57 +00:00
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
// skipjack.h - originally written and placed in the public domain by Wei Dai
|
|
|
|
/// \file skipjack.h
|
|
/// \brief Classes for the SKIPJACK block cipher
|
|
/// \details The Crypto++ implementation conforms to SKIPJACK and KEA
|
|
/// Algorithm Specifications published by NIST in May 1998. The library passes
|
|
/// known answer tests available in NIST SP800-17, Table 6, pp. 140-42.
|
|
/// \sa <a href ="http://csrc.nist.gov/encryption/skipjack/skipjack.pdf">SKIPJACK
|
|
/// and KEA Algorithm Specifications</a> (May 1998),
|
|
/// <a href="http://www.cryptopp.com/wiki/SKIPJACK">SKIPJACK</a> on the
|
|
// Crypto++ wiki
|
|
|
|
#ifndef CRYPTOPP_SKIPJACK_H
|
|
#define CRYPTOPP_SKIPJACK_H
|
|
|
|
#include "seckey.h"
|
|
#include "secblock.h"
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
/// \brief SKIPJACK block cipher information
|
|
struct SKIPJACK_Info : public FixedBlockSize<8>, public FixedKeyLength<10>
|
|
{
|
|
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "SKIPJACK";}
|
|
};
|
|
|
|
/// \brief SKIPJACK block cipher
|
|
/// \details The Crypto++ implementation conforms to SKIPJACK and KEA
|
|
/// Algorithm Specifications published by NIST in May 1998. The library passes
|
|
/// known answer tests available in NIST SP800-17, Table 6, pp. 140-42.
|
|
/// \sa <a href ="http://csrc.nist.gov/encryption/skipjack/skipjack.pdf">SKIPJACK
|
|
/// and KEA Algorithm Specifications</a> (May 1998),
|
|
/// <a href="http://www.cryptopp.com/wiki/SKIPJACK">SKIPJACK</a> on the
|
|
/// Crypto++ wiki
|
|
class SKIPJACK : public SKIPJACK_Info, public BlockCipherDocumentation
|
|
{
|
|
/// \brief SKIPJACK block cipher default operation
|
|
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SKIPJACK_Info>
|
|
{
|
|
public:
|
|
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms);
|
|
unsigned int OptimalDataAlignment() const {return GetAlignmentOf<word16>();}
|
|
|
|
protected:
|
|
static const byte fTable[256];
|
|
|
|
FixedSizeSecBlock<byte, 10*256> tab;
|
|
};
|
|
|
|
/// \brief SKIPJACK block cipher encryption operation
|
|
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];
|
|
};
|
|
|
|
/// \brief SKIPJACK block cipher decryption operation
|
|
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
|