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1 | | // rijndael.h - originally written and placed in the public domain by Wei Dai |
2 | | |
3 | | /// \file rijndael.h |
4 | | /// \brief Classes for Rijndael encryption algorithm |
5 | | /// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks, |
6 | | /// and not 192-bit or 256-bit blocks |
7 | | /// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0, |
8 | | /// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0 |
9 | | |
10 | | #ifndef CRYPTOPP_RIJNDAEL_H |
11 | | #define CRYPTOPP_RIJNDAEL_H |
12 | | |
13 | | #include "seckey.h" |
14 | | #include "secblock.h" |
15 | | |
16 | | // Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler |
17 | | // error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232 |
18 | | #if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM) |
19 | | # define CRYPTOPP_DISABLE_RIJNDAEL_ASM 1 |
20 | | #endif |
21 | | |
22 | | #if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_ARM32 || \ |
23 | | CRYPTOPP_BOOL_ARMV8 || CRYPTOPP_BOOL_PPC32 || CRYPTOPP_BOOL_PPC64 |
24 | | # define CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS 1 |
25 | | #endif |
26 | | |
27 | | NAMESPACE_BEGIN(CryptoPP) |
28 | | |
29 | | /// \brief Rijndael block cipher information |
30 | | /// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks, |
31 | | /// and not 192-bit or 256-bit blocks |
32 | | /// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0, |
33 | | /// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0 |
34 | | struct Rijndael_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 16, 32, 8> |
35 | | { |
36 | 46 | CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "AES";} |
37 | | }; |
38 | | |
39 | | /// \brief Rijndael block cipher |
40 | | /// \details All key sizes are supported. The library only provides Rijndael with 128-bit blocks, |
41 | | /// and not 192-bit or 256-bit blocks |
42 | | /// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0, |
43 | | /// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0 |
44 | | /// \sa <a href="http://www.cryptopp.com/wiki/Rijndael">Rijndael</a> |
45 | | class CRYPTOPP_DLL Rijndael : public Rijndael_Info, public BlockCipherDocumentation |
46 | | { |
47 | | /// \brief Rijndael block cipher transformation functions |
48 | | /// \details Provides implementation common to encryption and decryption |
49 | | class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Rijndael_Info> |
50 | | { |
51 | | public: |
52 | | void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs ¶ms); |
53 | | std::string AlgorithmProvider() const; |
54 | | unsigned int OptimalDataAlignment() const; |
55 | | |
56 | | protected: |
57 | | static void FillEncTable(); |
58 | | static void FillDecTable(); |
59 | | |
60 | | // VS2005 workaround: have to put these on separate lines, or error C2487 is triggered in DLL build |
61 | | static const byte Se[256]; |
62 | | static const byte Sd[256]; |
63 | | |
64 | | static const word32 rcon[]; |
65 | | |
66 | | unsigned int m_rounds; |
67 | | SecBlock<word32, AllocatorWithCleanup<word32, true> > m_key; |
68 | | mutable SecByteBlock m_aliasBlock; |
69 | | }; |
70 | | |
71 | | /// \brief Encryption transformation |
72 | | /// \details Enc provides implementation for encryption transformation. All key sizes are supported. |
73 | | /// The library only provides Rijndael with 128-bit blocks, and not 192-bit or 256-bit blocks |
74 | | /// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0, |
75 | | /// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0 |
76 | | class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Enc : public Base |
77 | | { |
78 | | public: |
79 | | void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; |
80 | | #if CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS |
81 | | size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const; |
82 | | #endif |
83 | | }; |
84 | | |
85 | | /// \brief Decryption transformation |
86 | | /// \details Dec provides implementation for decryption transformation. All key sizes are supported. |
87 | | /// The library only provides Rijndael with 128-bit blocks, and not 192-bit or 256-bit blocks |
88 | | /// \since Rijndael since Crypto++ 3.1, Intel AES-NI since Crypto++ 5.6.1, ARMv8 AES since Crypto++ 6.0, |
89 | | /// Power8 AES since Crypto++ 6.0, ARMv7 AES since Crypto++ 8.0 |
90 | | class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Dec : public Base |
91 | | { |
92 | | public: |
93 | | void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; |
94 | | #if CRYPTOPP_RIJNDAEL_ADVANCED_PROCESS_BLOCKS |
95 | | size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const; |
96 | | #endif |
97 | | }; |
98 | | |
99 | | public: |
100 | | typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption; |
101 | | typedef BlockCipherFinal<DECRYPTION, Dec> Decryption; |
102 | | }; |
103 | | |
104 | | typedef Rijndael::Encryption RijndaelEncryption; |
105 | | typedef Rijndael::Decryption RijndaelDecryption; |
106 | | |
107 | | NAMESPACE_END |
108 | | |
109 | | #endif |