---

rc2.h

Go to the documentation of this file.

#ifndef CRYPTOPP_RC2_H
#define CRYPTOPP_RC2_H

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

NAMESPACE_BEGIN(CryptoPP)

class RC2Base : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 128>
{
public:
        enum {BLOCKSIZE=8};
        unsigned int BlockSize() const {return BLOCKSIZE;}

protected:
        // max keyLen is 128, max effectiveLen is 1024
        RC2Base(const byte *key, unsigned int keyLen, unsigned int effectiveLen);

        SecBlock<word16> K;  // expanded key table
};

class RC2Encryption : public RC2Base
{
public:
        RC2Encryption(const byte *key, unsigned int keyLen=DEFAULT_KEYLENGTH, unsigned int effectiveLen=1024)
                : RC2Base(key, keyLen, effectiveLen) {}

        void ProcessBlock(byte * inoutBlock) const
                {RC2Encryption::ProcessBlock(inoutBlock, inoutBlock);}
        void ProcessBlock(const byte *inBlock, byte * outBlock) const;
};

class RC2Decryption : public RC2Base
{
public:
        RC2Decryption(const byte *key, unsigned int keyLen=DEFAULT_KEYLENGTH, unsigned int effectiveLen=1024)
                : RC2Base(key, keyLen, effectiveLen) {}

        void ProcessBlock(byte * inoutBlock) const
                {RC2Decryption::ProcessBlock(inoutBlock, inoutBlock);}
        void ProcessBlock(const byte *inBlock, byte * outBlock) const;
};

NAMESPACE_END

#endif

---