text: // idea.h - written and placed in the public domain by Wei Dai
  
  //! \file idea.h
  //! \brief Classes for the IDEA block cipher
  
  #ifndef CRYPTOPP_IDEA_H
  #define CRYPTOPP_IDEA_H
  
  #include "seckey.h"
  #include "secblock.h"
  
  NAMESPACE_BEGIN(CryptoPP)
  
  //! \class IDEA_Info
  //! \brief IDEA block cipher information
  struct IDEA_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public FixedRounds<8>
  {
  	CRYPTOPP_CONSTEXPR static const char *StaticAlgorithmName() {return "IDEA";}
  };
  
  //! \class IDEA
  //! \brief IDEA block cipher
  //! \sa <a href="http://www.weidai.com/scan-mirror/cs.html#IDEA">IDEA</a>
  class IDEA : public IDEA_Info, public BlockCipherDocumentation
  {
  public:		// made public for internal purposes
  #ifdef CRYPTOPP_NATIVE_DWORD_AVAILABLE
  	typedef word Word;
  #else
  	typedef hword Word;
  #endif
  
  private:
  	class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<IDEA_Info>
  	{
  	public:
  		unsigned int OptimalDataAlignment() const {return 2;}
  		void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
  
  		void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
  
  	private:
  		void EnKey(const byte *);
  		void DeKey();
  		FixedSizeSecBlock<Word, 6*ROUNDS+4> m_key;
  
  	#ifdef IDEA_LARGECACHE
  		static inline void LookupMUL(word &a, word b);
  		void LookupKeyLogs();
  		static void BuildLogTables();
  		static volatile bool tablesBuilt;
  		static word16 log[0x10000], antilog[0x10000];
  	#endif
  	};
  
  public:
  	typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
  	typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
  };
  
  typedef IDEA::Encryption IDEAEncryption;
  typedef IDEA::Decryption IDEADecryption;
  
  NAMESPACE_END
  
  #endif
  
  
  //////////////////////////////////////////////////////////////////////
  // iDev.Games - MuOnline S9EP2 IGC9.5 - TRONG.WIN - DAO VAN TRONG     
  //////////////////////////////////////////////////////////////////////
  
  