rijndael.h

Go to the documentation of this file.

#ifndef CRYPTOPP_RIJNDAEL_H
#define CRYPTOPP_RIJNDAEL_H

/** \file
*/

#include "seckey.h"
#include "secblock.h"

NAMESPACE_BEGIN(CryptoPP)

//! _
struct Rijndael_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>
{
        CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return CRYPTOPP_RIJNDAEL_NAME;}
};

/// <a href="http://www.weidai.com/scan-mirror/cs.html#Rijndael">Rijndael</a>
class CRYPTOPP_DLL Rijndael : public Rijndael_Info, public BlockCipherDocumentation
{
        class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Rijndael_Info>
        {
        public:
                void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);

        protected:
                // VS2005 workaround: have to put these on seperate lines, or error C2487 is triggered in DLL build
                CRYPTOPP_L1_CACHE_ALIGN(static const byte Se[256]);
                CRYPTOPP_L1_CACHE_ALIGN(static const byte Sd[256]);
                CRYPTOPP_L1_CACHE_ALIGN(static const word32 Te0[256]);
                static const word32 Te1[256];
                static const word32 Te2[256];
                static const word32 Te3[256];
                CRYPTOPP_L1_CACHE_ALIGN(static const word32 Td0[256]);
                static const word32 Td1[256];
                static const word32 Td2[256];
                static const word32 Td3[256];

                static const word32 rcon[];

                unsigned int m_rounds;
                SecBlock<word32> m_key;
        };

        class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
        {
        public:
                void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
        };

        class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
        {
        public:
                void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
        };

public:
        typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
        typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};

typedef Rijndael::Encryption RijndaelEncryption;
typedef Rijndael::Decryption RijndaelDecryption;

NAMESPACE_END

#endif

---