Crypto++  5.6.3
Free C++ class library of cryptographic schemes
skipjack.h
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1 // skipjack.h - written and placed in the public domain by Wei Dai
2 
3 //! \file skipjack.h
4 //! \brief Classes for the SKIPJACK block cipher
5 
6 #ifndef CRYPTOPP_SKIPJACK_H
7 #define CRYPTOPP_SKIPJACK_H
8 
9 #include "seckey.h"
10 #include "secblock.h"
11 
12 NAMESPACE_BEGIN(CryptoPP)
13 
14 //! _
15 struct SKIPJACK_Info : public FixedBlockSize<8>, public FixedKeyLength<10>
16 {
17  CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "SKIPJACK";}
18 };
19 
20 /// <a href="http://www.weidai.com/scan-mirror/cs.html#SKIPJACK">SKIPJACK</a>
22 {
23  class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<SKIPJACK_Info>
24  {
25  public:
26  void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
27  unsigned int OptimalDataAlignment() const {return GetAlignmentOf<word16>();}
28 
29  protected:
30  static const byte fTable[256];
31 
33  };
34 
35  class CRYPTOPP_DLL 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_DLL 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:113
Provides Encryption and Decryption typedefs used by derived classes to implement a block cipher...
Definition: seckey.h:385
Interface for one direction (encryption or decryption) of a block cipher.
Definition: cryptlib.h:1013
Classes and functions for secure memory allocations.
Inherited by block ciphers with fixed block size.
Definition: seckey.h:34
Classes and functions for implementing secret key algorithms.
Provides class member functions to access BlockCipher constants.
Definition: seckey.h:292
SKIPJACK
Definition: skipjack.h:21
Crypto++ library namespace.
Interface for retrieving values given their names.
Definition: cryptlib.h:261