Crypto++ 8.2 Free C++ class library of cryptographic schemes

cham.h
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1 // cham.h - written and placed in the public domain by Kim Sung Hee and Jeffrey Walton
2 // Based on "CHAM: A Family of Lightweight Block Ciphers for
3 // Resource-Constrained Devices" by Bonwook Koo, Dongyoung Roh,
4 // Hyeonjin Kim, Younghoon Jung, Dong-Geon Lee, and Daesung Kwon
5
6 /// \file cham.h
7 /// \brief Classes for the CHAM block cipher
8 /// \since Crypto++ 8.0
9
10 #ifndef CRYPTOPP_CHAM_H
11 #define CRYPTOPP_CHAM_H
12
13 #include "config.h"
14 #include "seckey.h"
15 #include "secblock.h"
16 #include "algparam.h"
17
18 #if (CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X86)
19 # define CRYPTOPP_CHAM128_ADVANCED_PROCESS_BLOCKS 1
20 #endif
21
22 // Yet another SunStudio/SunCC workaround. Failed self tests
23 // in SSE code paths on i386 for SunStudio 12.3 and below.
24 #if defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x5120)
25 # undef CRYPTOPP_CHAM128_ADVANCED_PROCESS_BLOCKS
26 #endif
27
28 NAMESPACE_BEGIN(CryptoPP)
29
30 /// \brief CHAM block cipher information
31 /// \since Crypto++ 8.0
32 struct CHAM64_Info : public FixedBlockSize<8>, public FixedKeyLength<16>
33 {
34 /// \brief The algorithm name
35 /// \return the algorithm name
36 /// \details StaticAlgorithmName returns the algorithm's name as a static
37 /// member function.
38 static const std::string StaticAlgorithmName()
39 {
40 // Format is Cipher-Blocksize
41 return "CHAM-64";
42 }
43 };
44
45 /// \brief CHAM block cipher information
46 /// \since Crypto++ 8.0
47 struct CHAM128_Info : public FixedBlockSize<16>, public VariableKeyLength<16,16,32,16>
48 {
49 /// \brief The algorithm name
50 /// \return the algorithm name
51 /// \details StaticAlgorithmName returns the algorithm's name as a static
52 /// member function.
53 static const std::string StaticAlgorithmName()
54 {
55 // Format is Cipher-Blocksize
56 return "CHAM-128";
57 }
58 };
59
60 /// \brief CHAM 64-bit block cipher
61 /// \details CHAM64 provides 64-bit block size. The valid key size is 128-bit.
62 /// \note Crypto++ provides a byte oriented implementation
63 /// \sa CHAM128, <a href="http://www.cryptopp.com/wiki/CHAM">CHAM</a>,
64 /// <a href="https://pdfs.semanticscholar.org/2f57/61b5c2614cffd58a09cc83c375a2b32a2ed3.pdf">
65 /// CHAM: A Family of Lightweight Block Ciphers for Resource-Constrained Devices</a>
66 /// \since Crypto++ 8.0
67 class CRYPTOPP_NO_VTABLE CHAM64 : public CHAM64_Info, public BlockCipherDocumentation
68 {
69 public:
70 /// \brief CHAM block cipher transformation functions
71 /// \details Provides implementation common to encryption and decryption
72 /// \since Crypto++ 8.0
73 class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<CHAM64_Info>
74 {
75 protected:
76 void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
77
78 SecBlock<word16> m_rk;
79 mutable FixedSizeSecBlock<word16, 4> m_x;
80 unsigned int m_kw;
81 };
82
83 /// \brief Encryption transformation
84 /// \details Enc provides implementation for encryption transformation. All key and block
85 /// sizes are supported.
86 /// \since Crypto++ 8.0
87 class CRYPTOPP_NO_VTABLE Enc : public Base
88 {
89 public:
90 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
91 };
92
93 /// \brief Decryption transformation
94 /// \details Dec provides implementation for decryption transformation. All key and block
95 /// sizes are supported.
96 /// \since Crypto++ 8.0
97 class CRYPTOPP_NO_VTABLE Dec : public Base
98 {
99 public:
100 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
101 };
102
103 /// \brief CHAM64 encryption
104 typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
105 /// \brief CHAM64 decryption
106 typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
107 };
108
109 /// \brief CHAM64 encryption
110 typedef CHAM64::Encryption CHAM64Encryption;
111 /// \brief CHAM64 decryption
112 typedef CHAM64::Decryption CHAM64Decryption;
113
114 /// \brief CHAM 128-bit block cipher
115 /// \details CHAM128 provides 128-bit block size. The valid key size is 128-bit and 256-bit.
116 /// \note Crypto++ provides a byte oriented implementation
117 /// \sa CHAM64, <a href="http://www.cryptopp.com/wiki/CHAM">CHAM</a>,
118 /// <a href="https://pdfs.semanticscholar.org/2f57/61b5c2614cffd58a09cc83c375a2b32a2ed3.pdf">
119 /// CHAM: A Family of Lightweight Block Ciphers for Resource-Constrained Devices</a>
120 /// \since Crypto++ 8.0
121 class CRYPTOPP_NO_VTABLE CHAM128 : public CHAM128_Info, public BlockCipherDocumentation
122 {
123 public:
124 /// \brief CHAM block cipher transformation functions
125 /// \details Provides implementation common to encryption and decryption
126 /// \since Crypto++ 8.0
127 class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<CHAM128_Info>
128 {
129 protected:
130 void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
131 std::string AlgorithmProvider() const;
132
133 SecBlock<word32> m_rk;
134 mutable FixedSizeSecBlock<word32, 4> m_x;
135 unsigned int m_kw;
136 };
137
138 /// \brief Encryption transformation
139 /// \details Enc provides implementation for encryption transformation. All key and block
140 /// sizes are supported.
141 /// \since Crypto++ 8.0
142 class CRYPTOPP_NO_VTABLE Enc : public Base
143 {
144 public:
145 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
146
147 #if CRYPTOPP_CHAM128_ADVANCED_PROCESS_BLOCKS
148 size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
149 #endif
150 };
151
152 /// \brief Decryption transformation
153 /// \details Dec provides implementation for decryption transformation. All key and block
154 /// sizes are supported.
155 /// \since Crypto++ 8.0
156 class CRYPTOPP_NO_VTABLE Dec : public Base
157 {
158 public:
159 void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
160
161 #if CRYPTOPP_CHAM128_ADVANCED_PROCESS_BLOCKS
162 size_t AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const;
163 #endif
164 };
165
166 /// \brief CHAM128 encryption
167 typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
168 /// \brief CHAM128 decryption
169 typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
170 };
171
172 /// \brief CHAM128 encryption
173 typedef CHAM128::Encryption CHAM128Encryption;
174 /// \brief CHAM128 decryption
175 typedef CHAM128::Decryption CHAM128Decryption;
176
177 NAMESPACE_END
178
179 #endif // CRYPTOPP_CHAM_H
FixedKeyLength
Inherited by keyed algorithms with fixed key length.
Definition: seckey.h:124
algparam.h
Classes for working with NameValuePairs.
CHAM64Encryption
CHAM64::Encryption CHAM64Encryption
CHAM64 encryption.
Definition: cham.h:110
BlockCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher...
Definition: seckey.h:398
CHAM128::Enc
Encryption transformation.
Definition: cham.h:142
CHAM128::Encryption
BlockCipherFinal< ENCRYPTION, Enc > Encryption
CHAM128 encryption.
Definition: cham.h:167
SecBlock< word16 >
CHAM64Decryption
CHAM64::Decryption CHAM64Decryption
CHAM64 decryption.
Definition: cham.h:112
CHAM64::Dec
Decryption transformation.
Definition: cham.h:97
config.h
Library configuration file.
CHAM64::Encryption
BlockCipherFinal< ENCRYPTION, Enc > Encryption
CHAM64 encryption.
Definition: cham.h:104
CHAM128Encryption
CHAM128::Encryption CHAM128Encryption
CHAM128 encryption.
Definition: cham.h:173
CHAM64_Info
CHAM block cipher information.
Definition: cham.h:32
CHAM64::Decryption
BlockCipherFinal< DECRYPTION, Dec > Decryption
CHAM64 decryption.
Definition: cham.h:106
CHAM128
CHAM 128-bit block cipher.
Definition: cham.h:121
secblock.h
Classes and functions for secure memory allocations.
FixedBlockSize
Inherited by algorithms with fixed block size.
Definition: seckey.h:40
CHAM128_Info::StaticAlgorithmName
static const std::string StaticAlgorithmName()
The algorithm name.
Definition: cham.h:53
CHAM128_Info
CHAM block cipher information.
Definition: cham.h:47
seckey.h
Classes and functions for implementing secret key algorithms.
BlockCipherFinal< ENCRYPTION, Enc >
CHAM64::Enc
Encryption transformation.
Definition: cham.h:87
CHAM128Decryption
CHAM128::Decryption CHAM128Decryption
CHAM128 decryption.
Definition: cham.h:175
FixedSizeSecBlock< word16, 4 >
CHAM128::Decryption
BlockCipherFinal< DECRYPTION, Dec > Decryption
CHAM128 decryption.
Definition: cham.h:169
VariableKeyLength
Inherited by keyed algorithms with variable key length.
Definition: seckey.h:165
CHAM64
CHAM 64-bit block cipher.
Definition: cham.h:67
CHAM128::Base
CHAM block cipher transformation functions.
Definition: cham.h:127
CHAM64_Info::StaticAlgorithmName
static const std::string StaticAlgorithmName()
The algorithm name.
Definition: cham.h:38
CHAM128::Dec
Decryption transformation.
Definition: cham.h:156
BlockCipherImpl
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition: seckey.h:305
CryptoPP
Crypto++ library namespace.
CHAM64::Base
CHAM block cipher transformation functions.
Definition: cham.h:73
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:321