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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 "Rijndael";}
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                 static const word32 Te0[256];
00028                 static const word32 Te1[256];
00029                 static const word32 Te2[256];
00030                 static const word32 Te3[256];
00031                 static const word32 Te4[256];
00032 
00033                 static const word32 Td0[256];
00034                 static const word32 Td1[256];
00035                 static const word32 Td2[256];
00036                 static const word32 Td3[256];
00037                 static const word32 Td4[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

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