rc6.h
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// rc6.h - written and placed in the public domain by Wei Dai
//! \file rc6.h
//! \brief Classes for the RC6 block cipher
#ifndef CRYPTOPP_RC6_H
#define CRYPTOPP_RC6_H
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! \class RC6_Info
//! \brief RC6 block cipher information
struct RC6_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>, public VariableRounds<20>
{
CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "RC6";}
typedef word32 RC6_WORD;
};
//! \class RC6
//! \brief RC6 block cipher
//! \sa <a href="http://www.weidai.com/scan-mirror/cs.html#RC6">RC6</a>
class RC6 : public RC6_Info, public BlockCipherDocumentation
{
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<RC6_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
protected:
unsigned int r; // number of rounds
SecBlock<RC6_WORD> sTable; // expanded key table
};
class CRYPTOPP_NO_VTABLE Enc : public Base
{
public:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
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 RC6::Encryption RC6Encryption;
typedef RC6::Decryption RC6Decryption;
NAMESPACE_END
#endif
BlockCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher...
Definition: seckey.h:423
RC6
RC6 block cipher.
Definition: rc6.h:25
RC6_Info
RC6 block cipher information.
Definition: rc6.h:16
SecBlock< RC6_WORD >
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 >
VariableKeyLength
Inherited by keyed algorithms with variable key length.
Definition: seckey.h:177
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