00001 #ifndef CRYPTOPP_SERPENT_H
00002 #define CRYPTOPP_SERPENT_H
00003
00004
00005
00006
00007 #include "seckey.h"
00008 #include "secblock.h"
00009
00010 NAMESPACE_BEGIN(CryptoPP)
00011
00012 struct Serpent_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 32>, public FixedRounds<32>
00013 {
00014 static const char *StaticAlgorithmName() {return "Serpent";}
00015 };
00016
00017
00018 class Serpent : public Serpent_Info, public BlockCipherDocumentation
00019 {
00020 class Base : public BlockCipherBaseTemplate<Serpent_Info>
00021 {
00022 public:
00023 void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
00024
00025 protected:
00026 FixedSizeSecBlock<word32, 140> m_key;
00027 };
00028
00029 class Enc : public Base
00030 {
00031 public:
00032 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00033 };
00034
00035 class Dec : public Base
00036 {
00037 public:
00038 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
00039 };
00040
00041 public:
00042 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00043 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00044 };
00045
00046 typedef Serpent::Encryption SerpentEncryption;
00047 typedef Serpent::Decryption SerpentDecryption;
00048
00049 NAMESPACE_END
00050
00051 #endif