Botan  2.4.0
Crypto and TLS for C++11
poly1305.h
Go to the documentation of this file.
1 /*
2 * Poly1305
3 * (C) 2014 Jack Lloyd
4 *
5 * Botan is released under the Simplified BSD License (see license.txt)
6 */
7 
8 #ifndef BOTAN_MAC_POLY1305_H_
9 #define BOTAN_MAC_POLY1305_H_
10 
11 #include <botan/mac.h>
12 #include <memory>
13 
14 namespace Botan {
15 
16 /**
17 * DJB's Poly1305
18 * Important note: each key can only be used once
19 */
21  {
22  public:
23  std::string name() const override { return "Poly1305"; }
24 
25  MessageAuthenticationCode* clone() const override { return new Poly1305; }
26 
27  void clear() override;
28 
29  size_t output_length() const override { return 16; }
30 
32  {
33  return Key_Length_Specification(32);
34  }
35 
36  private:
37  void add_data(const uint8_t[], size_t) override;
38  void final_result(uint8_t[]) override;
39  void key_schedule(const uint8_t[], size_t) override;
40 
43  size_t m_buf_pos = 0;
44  };
45 
46 }
47 
48 #endif
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:27
MessageAuthenticationCode * clone() const override
Definition: poly1305.h:25
std::string name() const override
Definition: poly1305.h:23
Key_Length_Specification key_spec() const override
Definition: poly1305.h:31
Definition: alg_id.cpp:13
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:88
size_t output_length() const override
Definition: poly1305.h:29