shark.h

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00001 #ifndef CRYPTOPP_SHARK_H
00002 #define CRYPTOPP_SHARK_H
00003 
00004 /** \file
00005 */
00006 
00007 #include "config.h"
00008 
00009 #ifdef WORD64_AVAILABLE
00010 
00011 #include "seckey.h"
00012 #include "secblock.h"
00013 
00014 NAMESPACE_BEGIN(CryptoPP)
00015 
00016 //! _
00017 struct SHARK_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 16>, public VariableRounds<6, 2>
00018 {
00019     static const char *StaticAlgorithmName() {return "SHARK-E";}
00020 };
00021 
00022 /// <a href="http://www.weidai.com/scan-mirror/cs.html#SHARK-E">SHARK-E</a>
00023 class SHARK : public SHARK_Info, public BlockCipherDocumentation
00024 {
00025     class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SHARK_Info>
00026     {
00027     public:
00028         void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &param);
00029 
00030     protected:
00031         unsigned int m_rounds;
00032         SecBlock<word64> m_roundKeys;
00033     };
00034 
00035     class CRYPTOPP_NO_VTABLE Enc : public Base
00036     {
00037     public:
00038         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00039 
00040         // used by Base to do key setup
00041         void InitForKeySetup();
00042 
00043     private:
00044         static const byte sbox[256];
00045         static const word64 cbox[8][256];
00046     };
00047 
00048     class CRYPTOPP_NO_VTABLE Dec : public Base
00049     {
00050     public:
00051         void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00052 
00053     private:
00054         static const byte sbox[256];
00055         static const word64 cbox[8][256];
00056     };
00057 
00058 public:
00059     typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
00060     typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
00061 };
00062 
00063 typedef SHARK::Encryption SHARKEncryption;
00064 typedef SHARK::Decryption SHARKDecryption;
00065 
00066 NAMESPACE_END
00067 
00068 #endif
00069 #endif

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