00001 #ifndef CRYPTOPP_SHARK_H
00002 #define CRYPTOPP_SHARK_H
00003
00004
00005
00006
00007 #include "cryptopp_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
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
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