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serpent.h

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#ifndef CRYPTOPP_SERPENT_H
#define CRYPTOPP_SERPENT_H

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

NAMESPACE_BEGIN(CryptoPP)

class Serpent : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 32>
{
protected:
        Serpent(const byte *userKey, unsigned int keylength);

        SecBlock<word32> l_key;
};

class SerpentEncryption : public Serpent
{
public:
        SerpentEncryption(const byte *userKey, unsigned int keylength=DEFAULT_KEYLENGTH)
                : Serpent(userKey, keylength) {}

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

class SerpentDecryption : public Serpent
{
public:
        SerpentDecryption(const byte *userKey, unsigned int keylength=DEFAULT_KEYLENGTH)
                : Serpent(userKey, keylength) {}

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

NAMESPACE_END

#endif

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