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#ifndef CRYPTOPP_RC6_H
#define CRYPTOPP_RC6_H
/** \file
*/
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
struct RC6_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 255>, public VariableRounds<20>
{
static const char *StaticAlgorithmName() {return "RC6";}
typedef word32 RC6_WORD;
};
/// <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(CipherDir direction, const byte *userKey, unsigned int length, unsigned int rounds);
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
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