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# serpent.h

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    00001 #ifndef CRYPTOPP_SERPENT_H
    00002 #define CRYPTOPP_SERPENT_H
    00003
    00004 /** \file
    00005 */
    00006
    00007 #include "seckey.h"
    00008 #include "secblock.h"
    00009
    00010 NAMESPACE_BEGIN(CryptoPP)
    00011
    00012 //! _
    00013 struct Serpent_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 1, 32>, public FixedRounds<32>
    00014 {
    00015         static const char *StaticAlgorithmName() {return "Serpent";}
    00016 };
    00017
    00018 /// <a href="http://www.weidai.com/scan-mirror/cs.html#Serpent">Serpent</a>
    00019 class Serpent : public Serpent_Info, public BlockCipherDocumentation
    00020 {
    00021         class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Serpent_Info>
    00022         {
    00023         public:
    00024                 void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
    00025
    00026         protected:
    00027                 FixedSizeSecBlock<word32, 140> m_key;
    00028         };
    00029
    00030         class CRYPTOPP_NO_VTABLE Enc : public Base
    00031         {
    00032         public:
    00033                 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    00034         };
    00035
    00036         class CRYPTOPP_NO_VTABLE Dec : public Base
    00037         {
    00038         public:
    00039                 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    00040         };
    00041
    00042 public:
    00043         typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
    00044         typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
    00045 };
    00046
    00047 typedef Serpent::Encryption SerpentEncryption;
    00048 typedef Serpent::Decryption SerpentDecryption;
    00049
    00050 NAMESPACE_END
    00051
    00052 #endif