shark.h
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// shark.h - written and placed in the public domain by Wei Dai
//! \file shark.h
//! \brief Classes for the SHARK block cipher
#ifndef CRYPTOPP_SHARK_H
#define CRYPTOPP_SHARK_H
#include "config.h"
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! \class SHARK_Info
//! \brief SHARK block cipher information
struct SHARK_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<6, 2>
{
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "SHARK-E";}
};
//! \class SHARK
//! \brief SHARK block cipher
/// <a href="http://www.weidai.com/scan-mirror/cs.html#SHARK-E">SHARK-E</a>
class SHARK : public SHARK_Info, public BlockCipherDocumentation
{
//! \class Base
//! \brief SHARK block cipher default operation
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SHARK_Info>
{
public:
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &param);
protected:
unsigned int m_rounds;
SecBlock<word64> m_roundKeys;
};
//! \class Enc
//! \brief SHARK block cipher encryption operation
class CRYPTOPP_NO_VTABLE Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
// used by Base to do key setup
void InitForKeySetup();
private:
static const byte sbox[256];
static const word64 cbox[8][256];
};
//! \class Dec
//! \brief SHARK block cipher decryption operation
class CRYPTOPP_NO_VTABLE Dec : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
private:
static const byte sbox[256];
static const word64 cbox[8][256];
};
public:
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
typedef SHARK::Encryption SHARKEncryption;
typedef SHARK::Decryption SHARKDecryption;
NAMESPACE_END
#endif
SHARK
SHARK block cipher SHARK-E
Definition: shark.h:25
secblock.h
Classes and functions for secure memory allocations.
FixedBlockSize
Inherited by algorithms with fixed block size.
Definition: seckey.h:34
SHARK_Info
SHARK block cipher information.
Definition: shark.h:17
BlockCipherImpl
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition: seckey.h:326
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
seckey.h
Classes and functions for implementing secret key algorithms.
BlockCipherFinal< ENCRYPTION, Enc >
CryptoPP
Crypto++ library namespace.
config.h
Library configuration file.
BlockCipher
Interface for one direction (encryption or decryption) of a block cipher.
Definition: cryptlib.h:1091
SecBlock< word64 >
VariableRounds
Inherited by algorithms with variable number of rounds.
Definition: seckey.h:60
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:277