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# rijndael.h

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    00001 #ifndef CRYPTOPP_RIJNDAEL_H
    00002 #define CRYPTOPP_RIJNDAEL_H
    00003
    00004 /** \file
    00005 */
    00006
    00007 #include "seckey.h"
    00008 #include "secblock.h"
    00009
    00010 NAMESPACE_BEGIN(CryptoPP)
    00011
    00012 //! _
    00013 struct Rijndael_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>
    00014 {
    00015         CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return CRYPTOPP_RIJNDAEL_NAME;}
    00016 };
    00017
    00018 /// <a href="http://www.weidai.com/scan-mirror/cs.html#Rijndael">Rijndael</a>
    00019 class CRYPTOPP_DLL Rijndael : public Rijndael_Info, public BlockCipherDocumentation
    00020 {
    00021         class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Rijndael_Info>
    00022         {
    00023         public:
    00024                 void UncheckedSetKey(CipherDir direction, const byte *userKey, unsigned int length);
    00025
    00026         protected:
    00027                 // VS2005 workaround: have to put these on seperate lines, or error C2487 is triggered in DLL build
    00028                 CRYPTOPP_L1_CACHE_ALIGN(static const byte Se[256]);
    00029                 CRYPTOPP_L1_CACHE_ALIGN(static const byte Sd[256]);
    00030                 CRYPTOPP_L1_CACHE_ALIGN(static const word32 Te0[256]);
    00031                 static const word32 Te1[256];
    00032                 static const word32 Te2[256];
    00033                 static const word32 Te3[256];
    00034                 CRYPTOPP_L1_CACHE_ALIGN(static const word32 Td0[256]);
    00035                 static const word32 Td1[256];
    00036                 static const word32 Td2[256];
    00037                 static const word32 Td3[256];
    00038
    00039                 static const word32 rcon[];
    00040
    00041                 unsigned int m_rounds;
    00042                 SecBlock<word32> m_key;
    00043         };
    00044
    00045         class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
    00046         {
    00047         public:
    00048                 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    00049         };
    00050
    00051         class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
    00052         {
    00053         public:
    00054                 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
    00055         };
    00056
    00057 public:
    00058         typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
    00059         typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
    00060 };
    00061
    00062 typedef Rijndael::Encryption RijndaelEncryption;
    00063 typedef Rijndael::Decryption RijndaelDecryption;
    00064
    00065 NAMESPACE_END
    00066
    00067 #endif