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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(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