110 lines
4.7 KiB
C++
110 lines
4.7 KiB
C++
// rijndael.h - originally written and placed in the public domain by Wei Dai
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/// \file rijndael.h
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/// \brief Classes for Rijndael encryption algorithm
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/// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks,
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/// and not 192-bit or 256-bit blocks
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/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
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/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0
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#ifndef CRYPTOPP_RIJNDAEL_H
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#define CRYPTOPP_RIJNDAEL_H
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#include "seckey.h"
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#include "secblock.h"
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// Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler
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// error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232
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#if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM)
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# define CRYPTOPP_DISABLE_RIJNDAEL_ASM 1
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#endif
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#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_ARM32 || \
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CRYPTOPP_BOOL_ARMV8 || CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64
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# define CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS 1
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#endif
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NAMESPACE_BEGIN(CryptoPP)
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/// \brief Rijndael block cipher information
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/// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks,
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/// and not 192-bit or 256-bit blocks
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/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
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/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0
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struct Rijndael_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8>
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{
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CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "AES";}
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};
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/// \brief Rijndael block cipher
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/// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks,
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/// and not 192-bit or 256-bit blocks
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/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
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/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0
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/// \sa <a href="http://www.cryptopp.com/wiki/Rijndael">Rijndael</a>
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class CRYPTOPP_DLL Rijndael : public Rijndael_Info, public BlockCipherDocumentation
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{
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/// \brief Rijndael block cipher transformation functions
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/// \details Provides implementation common to encryption and decryption
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class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Rijndael_Info>
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{
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public:
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void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms);
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std::string AlgorithmProvider() const;
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unsigned int OptimalDataAlignment() const;
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protected:
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static void FillEncTable();
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static void FillDecTable();
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// VS2005 workaround: have to put these on separate lines, or error C2487 is triggered in DLL build
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static const byte Se[256];
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static const byte Sd[256];
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static const word32 rcon[];
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unsigned int m_rounds;
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SecBlock<word32, AllocatorWithCleanup<word32, true> > m_key;
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mutable SecByteBlock m_aliasBlock;
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};
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/// \brief Encryption transformation
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/// \details Enc provides implementation for encryption transformation. All key sizes are supported.
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/// The library only provides Rijndael with 128-bit blocks, and not 192-bit or 256-bit blocks
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/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
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/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0
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class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base
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{
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public:
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void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
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#if CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS
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size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
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#endif
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};
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/// \brief Decryption transformation
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/// \details Dec provides implementation for decryption transformation. All key sizes are supported.
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/// The library only provides Rijndael with 128-bit blocks, and not 192-bit or 256-bit blocks
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/// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0,
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/// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0
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class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base
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{
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public:
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void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
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#if CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS
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size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
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#endif
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};
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public:
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typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
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typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
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};
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typedef Rijndael::Encryption RijndaelEncryption;
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typedef Rijndael::Decryption RijndaelDecryption;
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NAMESPACE_END
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#endif
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