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// rijndael.h - originally written and placed in the public domain by Wei Dai
/// \file rijndael.h
/// \brief Classes for Rijndael encryption algorithm
/// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks,
/// and not 192-bit or 256-bit blocks
/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0
#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_INTEL_ASM)
# define CRYPTOPP_DISABLE_RIJNDAEL_ASM 1
#endif
#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_ARM32 || \
CRYPTOPP_BOOL_ARM64 || CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64
# define CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS 1
#endif
NAMESPACE_BEGIN(CryptoPP)
/// \brief Rijndael block cipher information
/// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks,
/// and not 192-bit or 256-bit blocks
/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 7.1
struct Rijndael_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>
{
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return CRYPTOPP_RIJNDAEL_NAME;}
};
/// \brief Rijndael block cipher
/// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks,
/// and not 192-bit or 256-bit blocks
/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 7.1
/// \sa <a href="http://www.cryptopp.com/wiki/Rijndael">Rijndael</a>
class CRYPTOPP_DLL Rijndael : public Rijndael_Info, public BlockCipherDocumentation
{
/// \brief Rijndael block cipher transformation functions
/// \details Provides implementation common to encryption and decryption
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Rijndael_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms);
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;
};
/// \brief Encryption transformation
/// \details Enc provides implementation for encryption transformation. All key sizes are supported.
/// The library only provides Rijndael with 128-bit blocks, and not 192-bit or 256-bit blocks
/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 7.1
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
};
/// \brief Decryption transformation
/// \details Dec provides implementation for decryption transformation. All key sizes are supported.
/// The library only provides Rijndael with 128-bit blocks, and not 192-bit or 256-bit blocks
/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 7.1
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
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