rijndael.h

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// rijndael.h - originally written and placed in the public domain by Wei Dai
 
 
#ifndef CRYPTOPP_RIJNDAEL_H
#define CRYPTOPP_RIJNDAEL_H
 
#include "seckey.h"
#include "secblock.h"
 
// Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler
// error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232
#if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM)
# define CRYPTOPP_DISABLE_RIJNDAEL_ASM 1
#endif
 
#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_ARM32 || \
        CRYPTOPP_BOOL_ARMV8 || CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64
# define CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS 1
#endif
 
NAMESPACE_BEGIN(CryptoPP)
 
 
struct Rijndael_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>
{
        CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "AES";}
};
 
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 keyLength, const NameValuePairs &params);
                std::string AlgorithmProvider() const;
                unsigned int OptimalDataAlignment() const;
 
        protected:
                static void FillEncTable();
                static void FillDecTable();
 
                // VS2005 workaround: have to put these on separate lines, or error C2487 is triggered in DLL build
                static const byte Se[256];
                static const byte Sd[256];
 
                static const word32 rcon[];
 
                unsigned int m_rounds;
                SecBlock<word32, AllocatorWithCleanup<word32, true> > m_key;
                mutable SecByteBlock m_aliasBlock;
        };
 
        class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
        {
        public:
                void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
#if CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS
                size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
#endif
        };
 
        class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
        {
        public:
                void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
#if CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS
                size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
#endif
        };
 
public:
        typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
        typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
 
typedef Rijndael::Encryption RijndaelEncryption;
typedef Rijndael::Decryption RijndaelDecryption;
 
NAMESPACE_END
 
#endif