?? twofish.h
字號:
#ifndef CRYPTOPP_TWOFISH_H
#define CRYPTOPP_TWOFISH_H
/** \file
*/
#include "cryptlib.h"
#include "misc.h"
NAMESPACE_BEGIN(CryptoPP)
/// base class, do not use directly
class Twofish : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 32>
{
protected:
Twofish(const byte *userKey, unsigned int keylength);
static word32 h0(word32 x, const word32 *key, unsigned int kLen);
static word32 h(word32 x, const word32 *key, unsigned int kLen);
static const byte q[2][256];
static const word32 mds[4][256];
SecBlock<word32> m_k;
SecBlock<word32[256]> m_s;
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a>
class TwofishEncryption : public Twofish
{
public:
TwofishEncryption(const byte *userKey, unsigned int keylength=DEFAULT_KEYLENGTH)
: Twofish(userKey, keylength) {}
void ProcessBlock(const byte *inBlock, byte * outBlock) const;
void ProcessBlock(byte * inoutBlock) const
{TwofishEncryption::ProcessBlock(inoutBlock, inoutBlock);}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a>
class TwofishDecryption : public Twofish
{
public:
TwofishDecryption(const byte *userKey, unsigned int keylength=DEFAULT_KEYLENGTH)
: Twofish(userKey, keylength) {}
void ProcessBlock(const byte *inBlock, byte * outBlock) const;
void ProcessBlock(byte * inoutBlock) const
{TwofishDecryption::ProcessBlock(inoutBlock, inoutBlock);}
};
NAMESPACE_END
#endif
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