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3way.h

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#ifndef CRYPTOPP_THREEWAY_H
#define CRYPTOPP_THREEWAY_H

#include "cryptlib.h"
#include "misc.h"

NAMESPACE_BEGIN(CryptoPP)

class ThreeWayEncryption : public FixedBlockSize<12>, public FixedKeyLength<12>
{
public:
        enum {DEFAULT_ROUNDS=11};

        ThreeWayEncryption(const byte *userKey, unsigned int = 0, unsigned int rounds=DEFAULT_ROUNDS);
        ~ThreeWayEncryption();

        void ProcessBlock(const byte *inBlock, byte * outBlock) const;
        void ProcessBlock(byte * inoutBlock) const
                {ThreeWayEncryption::ProcessBlock(inoutBlock, inoutBlock);}

private:
        word32 k[3];
        unsigned int rounds;
        SecBlock<word32> rc;
};

class ThreeWayDecryption : public FixedBlockSize<12>, public FixedKeyLength<12>
{
public:
        enum {DEFAULT_ROUNDS=11};

        ThreeWayDecryption(const byte *userKey, unsigned int = 0, unsigned int rounds=DEFAULT_ROUNDS);
        ~ThreeWayDecryption();

        void ProcessBlock(const byte *inBlock, byte * outBlock) const;
        void ProcessBlock(byte * inoutBlock) const
                {ThreeWayDecryption::ProcessBlock(inoutBlock, inoutBlock);}

private:
        word32 k[3];
        unsigned int rounds;
        SecBlock<word32> rc;
};

NAMESPACE_END

#endif

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