3way.h
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// 3way.h - written and placed in the public domain by Wei Dai
//! \file 3way.h
//! \brief Classes for the 3-Way block cipher
#ifndef CRYPTOPP_THREEWAY_H
#define CRYPTOPP_THREEWAY_H
#include "config.h"
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! \class ThreeWay_Info
//! \brief ThreeWay block cipher information
struct ThreeWay_Info : public FixedBlockSize<12>, public FixedKeyLength<12>, public VariableRounds<11>
{
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "3-Way";}
};
//! \class ThreeWay
//! \brief ThreeWay block cipher
//! \sa <a href="http://www.weidai.com/scan-mirror/cs.html#3-Way">3-Way</a>
class ThreeWay : public ThreeWay_Info, public BlockCipherDocumentation
{
//! \class Base
//! \brief Class specific implementation and overrides used to operate the cipher.
//! \details Implementations and overrides in \p Base apply to both \p ENCRYPTION and \p DECRYPTION directions
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<ThreeWay_Info>
{
public:
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params);
protected:
unsigned int m_rounds;
FixedSizeSecBlock<word32, 3> m_k;
};
//! \class Enc
//! \brief Class specific methods used to operate the cipher in the forward direction.
//! \details Implementations and overrides in \p Enc apply to \p ENCRYPTION.
class CRYPTOPP_NO_VTABLE Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
//! \class Dec
//! \brief Class specific methods used to operate the cipher in the reverse direction.
//! \details Implementations and overrides in \p Dec apply to \p DECRYPTION.
class CRYPTOPP_NO_VTABLE Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
public:
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
typedef ThreeWay::Encryption ThreeWayEncryption;
typedef ThreeWay::Decryption ThreeWayDecryption;
NAMESPACE_END
#endif
FixedKeyLength
Inherited by keyed algorithms with fixed key length.
Definition: seckey.h:128
BlockCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher...
Definition: seckey.h:423
config.h
Library configuration file.
secblock.h
Classes and functions for secure memory allocations.
FixedBlockSize
Inherited by algorithms with fixed block size.
Definition: seckey.h:34
VariableRounds
Inherited by algorithms with variable number of rounds.
Definition: seckey.h:60
seckey.h
Classes and functions for implementing secret key algorithms.
BlockCipherFinal< ENCRYPTION, Enc >
ThreeWay
ThreeWay block cipher.
Definition: 3way.h:25
FixedSizeSecBlock< word32, 3 >
ThreeWay_Info
ThreeWay block cipher information.
Definition: 3way.h:17
BlockCipherImpl
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition: seckey.h:326
CryptoPP
Crypto++ library namespace.
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:277