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korayakov
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Файл:Документация по криптоалгоритмам / CRYPTO30 / square
.h#ifndef CRYPTOPP_SQUARE_H
#define CRYPTOPP_SQUARE_H
#include "config.h"
#include "cryptlib.h"
#include "misc.h"
NAMESPACE_BEGIN(CryptoPP)
class SquareBase : public BlockTransformation
{
public:
enum {KEYLENGTH=16, BLOCKSIZE=16, ROUNDS=8};
unsigned int BlockSize() const {return BLOCKSIZE;}
protected:
SquareBase(const byte *userKey, CipherDir dir);
SecBlock<word32[4]> roundkeys;
};
class SquareEncryption : public SquareBase
{
public:
SquareEncryption(const byte *key) : SquareBase(key, ENCRYPTION) {}
void ProcessBlock(byte * inoutBlock) const
{SquareEncryption::ProcessBlock(inoutBlock, inoutBlock);}
void ProcessBlock(const byte *inBlock, byte * outBlock) const;
private:
static const byte Se[256];
static const word32 Te[4][256];
};
class SquareDecryption : public SquareBase
{
public:
SquareDecryption(const byte *key) : SquareBase(key, DECRYPTION) {}
void ProcessBlock(byte * inoutBlock) const
{SquareDecryption::ProcessBlock(inoutBlock, inoutBlock);}
void ProcessBlock(const byte *inBlock, byte * outBlock) const;
private:
static const byte Sd[256];
static const word32 Td[4][256];
};
NAMESPACE_END
#endif
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