rc5.h
Go to the documentation of this file.
#ifndef CRYPTOPP_RC5_H
#define CRYPTOPP_RC5_H
/** \file
*/
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
struct RC5_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 0, 255>, public VariableRounds<16>
{
static const char *StaticAlgorithmName() {return "RC5";}
typedef word32 RC5_WORD;
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#RC5">RC5</a>
class RC5 : public RC5_Info, public BlockCipherDocumentation
{
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<RC5_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
protected:
unsigned int r; // number of rounds
SecBlock<RC5_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 RC5::Encryption RC5Encryption;
typedef RC5::Decryption RC5Decryption;
NAMESPACE_END
#endif
BlockCipherDocumentation
These objects usually should not be used directly. See CipherModeDocumentation instead.
Definition: seckey.h:188
SecBlock< RC5_WORD >
RC5
RC5
Definition: rc5.h:20
FixedBlockSize
to be inherited by block ciphers with fixed block size
Definition: seckey.h:21
VariableRounds
to be inherited by ciphers with variable number of rounds
Definition: seckey.h:39
BlockCipherFinal< ENCRYPTION, Enc >
RC5_Info
_
Definition: rc5.h:13
VariableKeyLength
support query of variable key length, template parameters are default, min, max, multiple (default mu...
Definition: seckey.h:80
BlockCipherImpl
Definition: seckey.h:143
NameValuePairs
interface for retrieving values given their names
Definition: cryptlib.h:224