Botan  2.7.0
Crypto and TLS for C++11
twofish.h
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1 /*
2 * Twofish
3 * (C) 1999-2007 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7 
8 #ifndef BOTAN_TWOFISH_H_
9 #define BOTAN_TWOFISH_H_
10 
11 #include <botan/block_cipher.h>
12 
13 namespace Botan {
14 
15 /**
16 * Twofish, an AES finalist
17 */
18 class BOTAN_PUBLIC_API(2,0) Twofish final : public Block_Cipher_Fixed_Params<16, 16, 32, 8>
19  {
20  public:
21  void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
22  void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
23 
24  void clear() override;
25  std::string name() const override { return "Twofish"; }
26  BlockCipher* clone() const override { return new Twofish; }
27  private:
28  void key_schedule(const uint8_t[], size_t) override;
29 
30  static const uint32_t MDS0[256];
31  static const uint32_t MDS1[256];
32  static const uint32_t MDS2[256];
33  static const uint32_t MDS3[256];
34  static const uint8_t Q0[256];
35  static const uint8_t Q1[256];
36  static const uint8_t RS[32];
37  static const uint8_t EXP_TO_POLY[255];
38  static const uint8_t POLY_TO_EXP[255];
39 
40  secure_vector<uint32_t> m_SB, m_RK;
41  };
42 
43 }
44 
45 #endif
std::string name() const override
Definition: twofish.h:25
BlockCipher * clone() const override
Definition: twofish.h:26
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:27
Definition: alg_id.cpp:13
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:88