00001 #ifndef CRYPTOPP_THREEWAY_H
00002 #define CRYPTOPP_THREEWAY_H
00003
00004
00005
00006
00007 #include "seckey.h"
00008 #include "secblock.h"
00009
00010 NAMESPACE_BEGIN(CryptoPP)
00011
00012 struct ThreeWay_Info : public FixedBlockSize<12>, public FixedKeyLength<12>, public VariableRounds<11>
00013 {
00014 static const char *StaticAlgorithmName() {return "3-Way";}
00015 };
00016
00017
00018 class ThreeWay : public ThreeWay_Info, public BlockCipherDocumentation
00019 {
00020 class Base : public BlockCipherBaseTemplate<ThreeWay_Info>
00021 {
00022 public:
00023 void UncheckedSetKey(CipherDir direction, const byte *key, unsigned int length, unsigned int rounds);
00024
00025 protected:
00026 unsigned int m_rounds;
00027 FixedSizeSecBlock<word32, 3> m_k;
00028 };
00029
00030 class Enc : public Base
00031 {
00032 public:
00033 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00034 };
00035
00036 class Dec : public Base
00037 {
00038 public:
00039 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00040 };
00041
00042 public:
00043 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00044 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00045 };
00046
00047 typedef ThreeWay::Encryption ThreeWayEncryption;
00048 typedef ThreeWay::Decryption ThreeWayDecryption;
00049
00050 NAMESPACE_END
00051
00052 #endif