Crypto++  5.6.5
Free C++ class library of cryptographic schemes
square.h
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1 // square.h - written and placed in the public domain by Wei Dai
2 
3 //! \file square.h
4 //! \brief Classes for the Square block cipher
5 
6 #ifndef CRYPTOPP_SQUARE_H
7 #define CRYPTOPP_SQUARE_H
8 
9 #include "seckey.h"
10 #include "secblock.h"
11 
12 NAMESPACE_BEGIN(CryptoPP)
13 
14 //! \class Square_Info
15 //! \brief Square block cipher information
16 struct Square_Info : public FixedBlockSize<16>, public FixedKeyLength<16>, FixedRounds<8>
17 {
18  CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Square";}
19 };
20 
21 //! \class Square
22 //! \brief Square block cipher
23 //! \sa <a href="http://www.weidai.com/scan-mirror/cs.html#Square">Square</a>
25 {
26  class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Square_Info>
27  {
28  public:
29  void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
30 
31  protected:
33  };
34 
35  class CRYPTOPP_NO_VTABLE Enc : public Base
36  {
37  public:
38  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
39  private:
40  static const byte Se[256];
41  static const word32 Te[4][256];
42  };
43 
44  class CRYPTOPP_NO_VTABLE Dec : public Base
45  {
46  public:
47  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
48  private:
49  static const byte Sd[256];
50  static const word32 Td[4][256];
51  };
52 
53 public:
56 };
57 
60 
61 NAMESPACE_END
62 
63 #endif
Inherited by keyed algorithms with fixed key length.
Definition: seckey.h:127
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher...
Definition: seckey.h:408
Square block cipher.
Definition: square.h:24
Interface for one direction (encryption or decryption) of a block cipher.
Definition: cryptlib.h:1095
Classes and functions for secure memory allocations.
Inherited by algorithms with fixed block size.
Definition: seckey.h:40
Classes and functions for implementing secret key algorithms.
Inherited by algorithms with fixed number of rounds.
Definition: seckey.h:53
Square block cipher information.
Definition: square.h:16
Provides a base implementation of Algorithm and SimpleKeyingInterface for block ciphers.
Definition: seckey.h:311
Crypto++ library namespace.
Interface for retrieving values given their names.
Definition: cryptlib.h:279