Crypto++  8.2
Free C++ class library of cryptographic schemes
hight.h
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1 // hight.h - written and placed in the public domain by Kim Sung Hee and Jeffrey Walton
2 // Based on "HIGHT: A New Block Cipher Suitable for Low-Resource Device"
3 // by Deukjo Hong, Jaechul Sung, Seokhie Hong, Jongin Lim, Sangjin Lee,
4 // Bon-Seok Koo, Changhoon Lee, Donghoon Chang, Jesang Lee, Kitae Jeong,
5 // Hyun Kim, Jongsung Kim, and Seongtaek Chee
6 
7 /// \file hight.h
8 /// \brief Classes for the HIGHT block cipher
9 /// \since Crypto++ 8.0
10 
11 #ifndef CRYPTOPP_HIGHT_H
12 #define CRYPTOPP_HIGHT_H
13 
14 #include "config.h"
15 #include "seckey.h"
16 #include "secblock.h"
17 #include "algparam.h"
18 
19 NAMESPACE_BEGIN(CryptoPP)
20 
21 /// \brief HIGHT block cipher information
22 /// \since Crypto++ 8.0
23 struct HIGHT_Info : public FixedBlockSize<8>, public FixedKeyLength<16>
24 {
25  static const std::string StaticAlgorithmName()
26  {
27  // Format is Cipher-Blocksize
28  return "HIGHT";
29  }
30 };
31 
32 /// \brief HIGHT 64-bit block cipher
33 /// \details HIGHT provides 64-bit block size. The valid key size is 128-bits.
34 /// \note Crypto++ provides a byte oriented implementation
35 /// \sa <a href="http://www.cryptopp.com/wiki/HIGHT">HIGHT</a>,
36 /// <a href="https://seed.kisa.or.kr/">Korea Internet &amp; Security
37 /// Agency</a> website
38 /// \since Crypto++ 8.0
39 class CRYPTOPP_NO_VTABLE HIGHT : public HIGHT_Info, public BlockCipherDocumentation
40 {
41 public:
42  /// \brief HIGHT block cipher transformation functions
43  /// \details Provides implementation common to encryption and decryption
44  /// \since Crypto++ 8.0
45  class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<HIGHT_Info>
46  {
47  protected:
48  void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
49 
51  mutable FixedSizeSecBlock<word32, 8> m_xx;
52  };
53 
54  /// \brief Encryption transformation
55  /// \details Enc provides implementation for encryption transformation.
56  /// \since Crypto++ 8.0
57  class CRYPTOPP_NO_VTABLE Enc : public Base
58  {
59  public:
60  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
61  };
62 
63  /// \brief Decryption transformation
64  /// \details Dec provides implementation for decryption transformation.
65  /// \since Crypto++ 8.0
66  class CRYPTOPP_NO_VTABLE Dec : public Base
67  {
68  public:
69  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
70  };
71 
74 };
75 
78 
79 NAMESPACE_END
80 
81 #endif // CRYPTOPP_HIGHT_H
Inherited by keyed algorithms with fixed key length.
Definition: seckey.h:124
Classes for working with NameValuePairs.
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher.
Definition: seckey.h:398
HIGHT block cipher transformation functions.
Definition: hight.h:45
Library configuration file.
Classes and functions for secure memory allocations.
Inherited by algorithms with fixed block size.
Definition: seckey.h:40
Encryption transformation.
Definition: hight.h:57
Classes and functions for implementing secret key algorithms.
Decryption transformation.
Definition: hight.h:66
HIGHT block cipher information.
Definition: hight.h:23
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition: seckey.h:305
HIGHT 64-bit block cipher.
Definition: hight.h:39
Crypto++ library namespace.
Interface for retrieving values given their names.
Definition: cryptlib.h:321