3way.h
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// 3way.h - originally 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)
/// \brief ThreeWay block cipher information
struct ThreeWay_Info : public FixedBlockSize<12>, public FixedKeyLength<12>, public VariableRounds<11>
{
CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "3-Way";}
};
/// \brief ThreeWay block cipher
/// \sa <a href="http://www.cryptopp.com/wiki/3-Way">3-Way</a>
class ThreeWay : public ThreeWay_Info, public BlockCipherDocumentation
{
/// \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;
};
/// \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;
};
/// \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
BlockCipherFinal
Provides class member functions to key a block cipher.
Definition seckey.h:318
BlockCipherImpl
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition seckey.h:306
FixedBlockSize
Inherited by algorithms with fixed block size.
Definition seckey.h:41
FixedKeyLength
Inherited by keyed algorithms with fixed key length.
Definition seckey.h:125
FixedSizeSecBlock
Fixed size stack-based SecBlock.
Definition secblock.h:1246
NameValuePairs
Interface for retrieving values given their names.
Definition cryptlib.h:327
ThreeWay
ThreeWay block cipher.
Definition 3way.h:24
VariableRounds
Inherited by algorithms with variable number of rounds.
Definition seckey.h:65
config.h
Library configuration file.
CryptoPP
Crypto++ library namespace.
secblock.h
Classes and functions for secure memory allocations.
seckey.h
Classes and functions for implementing secret key algorithms.
BlockCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher.
Definition seckey.h:399
ThreeWay_Info
ThreeWay block cipher information.
Definition 3way.h:17