Crypto++
twofish.h
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1 #ifndef CRYPTOPP_TWOFISH_H
2 #define CRYPTOPP_TWOFISH_H
3 
4 /** \file
5 */
6 
7 #include "seckey.h"
8 #include "secblock.h"
9 
10 NAMESPACE_BEGIN(CryptoPP)
11 
12 //! _
13 struct Twofish_Info : public FixedBlockSize<16>, public VariableKeyLength<16, 0, 32>, FixedRounds<16>
14 {
15  static const char *StaticAlgorithmName() {return "Twofish";}
16 };
17 
18 /// <a href="http://www.weidai.com/scan-mirror/cs.html#Twofish">Twofish</a>
20 {
21  class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Twofish_Info>
22  {
23  public:
24  void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
25 
26  protected:
27  static word32 h0(word32 x, const word32 *key, unsigned int kLen);
28  static word32 h(word32 x, const word32 *key, unsigned int kLen);
29 
30  static const byte q[2][256];
31  static const word32 mds[4][256];
32 
35  };
36 
37  class CRYPTOPP_NO_VTABLE Enc : public Base
38  {
39  public:
40  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
41  };
42 
43  class CRYPTOPP_NO_VTABLE Dec : public Base
44  {
45  public:
46  void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
47  };
48 
49 public:
52 };
53 
56 
57 NAMESPACE_END
58 
59 #endif
These objects usually should not be used directly. See CipherModeDocumentation instead.
Definition: seckey.h:188
interface for one direction (encryption or decryption) of a block cipher
Definition: cryptlib.h:603
to be inherited by block ciphers with fixed block size
Definition: seckey.h:21
Twofish
Definition: twofish.h:19
to be inherited by ciphers with fixed number of rounds
Definition: seckey.h:31
support query of variable key length, template parameters are default, min, max, multiple (default mu...
Definition: seckey.h:80
interface for retrieving values given their names
Definition: cryptlib.h:224