00001 #ifndef CRYPTOPP_SQUARE_H
00002 #define CRYPTOPP_SQUARE_H
00003
00004
00005
00006
00007 #include "seckey.h"
00008 #include "secblock.h"
00009
00010 NAMESPACE_BEGIN(CryptoPP)
00011
00012 struct Square_Info : public FixedBlockSize<16>, public FixedKeyLength<16>, FixedRounds<8>
00013 {
00014 static const char *StaticAlgorithmName() {return "Square";}
00015 };
00016
00017
00018 class Square : public Square_Info, public BlockCipherDocumentation
00019 {
00020 class Base : public BlockCipherBaseTemplate<Square_Info>
00021 {
00022 public:
00023 void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
00024
00025 protected:
00026 FixedSizeSecBlock<word32[4], ROUNDS+1> roundkeys;
00027 };
00028
00029 class Enc : public Base
00030 {
00031 public:
00032 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00033 private:
00034 static const byte Se[256];
00035 static const word32 Te[4][256];
00036 };
00037
00038 class Dec : public Base
00039 {
00040 public:
00041 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00042 private:
00043 static const byte Sd[256];
00044 static const word32 Td[4][256];
00045 };
00046
00047 public:
00048 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00049 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00050 };
00051
00052 typedef Square::Encryption SquareEncryption;
00053 typedef Square::Decryption SquareDecryption;
00054
00055 NAMESPACE_END
00056
00057 #endif