#ifndef CRYPTOPP_TWOFISH_H #define CRYPTOPP_TWOFISH_H /** \file */ #include "seckey.h" #include "secblock.h" NAMESPACE_BEGIN(CryptoPP) //! _ struct Twofish_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 32>, FixedRounds<16> { static const char *StaticAlgorithmName() {return "Twofish";} }; /// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a> class Twofish : public Twofish_Info, public BlockCipherDocumentation { class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Twofish_Info> { public: void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs ¶ms); protected: 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]; FixedSizeSecBlock<word32, 40> m_k; FixedSizeSecBlock<word32[256], 4> m_s; }; class CRYPTOPP_NO_VTABLE Enc : public Base { public: void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; }; class CRYPTOPP_NO_VTABLE Dec : public Base { public: void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; }; public: typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption; typedef BlockCipherFinal<DECRYPTION, Dec> Decryption; }; typedef Twofish::Encryption TwofishEncryption; typedef Twofish::Decryption TwofishDecryption; NAMESPACE_END #endif