Crypto++  8.2
Free C++ class library of cryptographic schemes
shark.h
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1 // shark.h - originally written and placed in the public domain by Wei Dai
2 
3 /// \file shark.h
4 /// \brief Classes for the SHARK block cipher
5 /// \since Crypto++ 2.1
6 
7 #ifndef CRYPTOPP_SHARK_H
8 #define CRYPTOPP_SHARK_H
9 
10 #include "config.h"
11 #include "seckey.h"
12 #include "secblock.h"
13 
14 NAMESPACE_BEGIN(CryptoPP)
15 
16 /// \brief SHARK block cipher information
17 /// \since Crypto++ 2.1
18 struct SHARK_Info : public FixedBlockSize<8>, public FixedKeyLength<16>, public VariableRounds<6, 2>
19 {
20  CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "SHARK-E";}
21 };
22 
23 /// \brief SHARK block cipher
24 /// <a href="http://www.cryptopp.com/wiki/SHARK-E">SHARK-E</a>
25 /// \since Crypto++ 2.1
27 {
28  /// \brief SHARK block cipher default operation
29  /// \since Crypto++ 2.1
30  class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SHARK_Info>
31  {
32  public:
33  void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &param);
34 
35  protected:
36  unsigned int m_rounds;
37  SecBlock<word64> m_roundKeys;
38  };
39 
40  /// \brief SHARK block cipher encryption operation
41  /// \since Crypto++ 2.1
42  class CRYPTOPP_NO_VTABLE Enc : public Base
43  {
44  public:
45  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
46 
47  // used by Base to do key setup
48  void InitForKeySetup();
49 
50  private:
51  static const byte sbox[256];
52  static const word64 cbox[8][256];
53  };
54 
55  /// \brief SHARK block cipher decryption operation
56  /// \since Crypto++ 2.1
57  class CRYPTOPP_NO_VTABLE Dec : public Base
58  {
59  public:
60  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
61 
62  private:
63  static const byte sbox[256];
64  static const word64 cbox[8][256];
65  };
66 
67 public:
70 };
71 
74 
75 NAMESPACE_END
76 
77 #endif
Inherited by keyed algorithms with fixed key length.
Definition: seckey.h:124
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher.
Definition: seckey.h:398
SHARK block cipher SHARK-E
Definition: shark.h:26
Library configuration file.
Interface for one direction (encryption or decryption) of a block cipher.
Definition: cryptlib.h:1279
Classes and functions for secure memory allocations.
Inherited by algorithms with fixed block size.
Definition: seckey.h:40
Inherited by algorithms with variable number of rounds.
Definition: seckey.h:64
Classes and functions for implementing secret key algorithms.
SHARK block cipher information.
Definition: shark.h:18
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition: seckey.h:305
Crypto++ library namespace.
Interface for retrieving values given their names.
Definition: cryptlib.h:321