rc6.h
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// rc6.h - originally written and placed in the public domain by Wei Dai
/// \file rc6.h
/// \brief Classes for the RC6 block cipher
/// \since Crypto++ 3.0
#ifndef CRYPTOPP_RC6_H
#define CRYPTOPP_RC6_H
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
/// \brief RC6 block cipher information
/// \since Crypto++ 3.0
struct RC6_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>, public VariableRounds<20>
{
CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "RC6";}
typedef word32 RC6_WORD;
};
/// \brief RC6 block cipher
/// \sa <a href="http://www.cryptopp.com/wiki/RC6">RC6</a>
/// \since Crypto++ 3.0
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
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
NameValuePairs
Interface for retrieving values given their names.
Definition cryptlib.h:327
RC6
RC6 block cipher.
Definition rc6.h:27
SecBlock
Secure memory block with allocator and cleanup.
Definition secblock.h:731
VariableKeyLength
Inherited by keyed algorithms with variable key length.
Definition seckey.h:166
VariableRounds
Inherited by algorithms with variable number of rounds.
Definition seckey.h:65
word32
unsigned int word32
32-bit unsigned datatype
Definition config_int.h:72
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
RC6_Info
RC6 block cipher information.
Definition rc6.h:18