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diamond.h

Go to the documentation of this file.

#ifndef CRYPTOPP_DIAMOND_H
#define CRYPTOPP_DIAMOND_H

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

NAMESPACE_BEGIN(CryptoPP)

class Diamond2Base : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 256>
{
public:
        Diamond2Base(const byte *key, unsigned int key_size, unsigned int rounds,
                                CipherDir direction);

        enum {DEFAULT_ROUNDS=10};

protected:
        enum {ROUNDSIZE=4096};
        inline void substitute(int round, byte *y) const;

        const int numrounds;
        SecByteBlock s;         // Substitution boxes

        static inline void permute(byte *);
        static inline void ipermute(byte *);
#ifdef DIAMOND_USE_PERMTABLE
        static const word32 permtable[9][256];
        static const word32 ipermtable[9][256];
#endif
};

class Diamond2Encryption : public Diamond2Base
{
public:
        Diamond2Encryption(const byte *key, unsigned int key_size=DEFAULT_KEYLENGTH, unsigned int rounds=DEFAULT_ROUNDS)
                : Diamond2Base(key, key_size, rounds, ENCRYPTION) {}

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

class Diamond2Decryption : public Diamond2Base
{
public:
        Diamond2Decryption(const byte *key, unsigned int key_size=DEFAULT_KEYLENGTH, unsigned int rounds=DEFAULT_ROUNDS)
                : Diamond2Base(key, key_size, rounds, DECRYPTION) {}

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

class Diamond2LiteBase : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 256>
{
public:
        Diamond2LiteBase(const byte *key, unsigned int key_size, unsigned int rounds,
                                CipherDir direction);

        enum {DEFAULT_ROUNDS=8};

protected:
        enum {ROUNDSIZE=2048};
        inline void substitute(int round, byte *y) const;
        const int numrounds;
        SecByteBlock s;         // Substitution boxes

        static inline void permute(byte *);
        static inline void ipermute(byte *);
#ifdef DIAMOND_USE_PERMTABLE
        static const word32 permtable[8][256];
        static const word32 ipermtable[8][256];
#endif
};

class Diamond2LiteEncryption : public Diamond2LiteBase
{
public:
        Diamond2LiteEncryption(const byte *key, unsigned int key_size=DEFAULT_KEYLENGTH, unsigned int rounds=DEFAULT_ROUNDS)
                : Diamond2LiteBase(key, key_size, rounds, ENCRYPTION) {}

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

class Diamond2LiteDecryption : public Diamond2LiteBase
{
public:
        Diamond2LiteDecryption(const byte *key, unsigned int key_size=DEFAULT_KEYLENGTH, unsigned int rounds=DEFAULT_ROUNDS)
                : Diamond2LiteBase(key, key_size, rounds, DECRYPTION) {}

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

NAMESPACE_END

#endif

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