60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
// rc5.h - originally written and placed in the public domain by Wei Dai
|
|
|
|
/// \file rc5.h
|
|
/// \brief Classes for the RC5 block cipher
|
|
|
|
#ifndef CRYPTOPP_RC5_H
|
|
#define CRYPTOPP_RC5_H
|
|
|
|
#include "seckey.h"
|
|
#include "secblock.h"
|
|
|
|
NAMESPACE_BEGIN(CryptoPP)
|
|
|
|
/// \brief RC5 block cipher information
|
|
/// \since Crypto++ 1.0
|
|
struct RC5_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 0, 255>, public VariableRounds<16>
|
|
{
|
|
CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "RC5";}
|
|
typedef word32 RC5_WORD;
|
|
};
|
|
|
|
/// \brief RC5 block cipher
|
|
/// \sa <a href="http://www.cryptopp.com/wiki/RC5">RC5</a>
|
|
/// \since Crypto++ 1.0
|
|
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 ¶ms);
|
|
|
|
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
|