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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 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 /// <a href="http://www.weidai.com/scan-mirror/cs.html#Serpent">Serpent</a>
    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