Main Page | Namespace List | Class Hierarchy | Alphabetical List | Compound List | File List | Namespace Members | Compound Members | File Members

# shark.h

Go to the documentation of this file.

    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 struct SHARK_Info : public FixedBlockSize<8>, public VariableKeyLength<16, 1, 16>, public VariableRounds<6, 2>
    00017 {
    00018         static const char *StaticAlgorithmName() {return "SHARK-E";}
    00019 };
    00020
    00021 /// <a href="http://www.weidai.com/scan-mirror/cs.html#SHARK-E">SHARK-E</a>
    00022 class SHARK : public SHARK_Info, public BlockCipherDocumentation
    00023 {
    00024         class Base : public BlockCipherBaseTemplate<SHARK_Info>
    00025         {
    00026         public:
    00027                 void UncheckedSetKey(CipherDir dir, const byte *key, unsigned int length, unsigned int rounds);
    00028
    00029         protected:
    00030                 unsigned int m_rounds;
    00031                 SecBlock<word64> m_roundKeys;
    00032         };
    00033
    00034         class Enc : public Base
    00035         {
    00036         public:
    00037                 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    00038
    00039                 // used by Base to do key setup
    00040                 void InitForKeySetup();
    00041
    00042         private:
    00043                 static const byte sbox[256];
    00044                 static const word64 cbox[8][256];
    00045         };
    00046
    00047         class Dec : public Base
    00048         {
    00049         public:
    00050                 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    00051
    00052         private:
    00053                 static const byte sbox[256];
    00054                 static const word64 cbox[8][256];
    00055         };
    00056
    00057 public:
    00058         typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
    00059         typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
    00060 };
    00061
    00062 typedef SHARK::Encryption SHARKEncryption;
    00063 typedef SHARK::Decryption SHARKDecryption;
    00064
    00065 NAMESPACE_END
    00066
    00067 #endif
    00068 #endif