Botan  2.15.0
Crypto and TLS for C++11
poly1305.h
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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 
15 
16 namespace Botan {
17 
18 /**
19 * DJB's Poly1305
20 * Important note: each key can only be used once
21 */
23  {
24  public:
25  std::string name() const override { return "Poly1305"; }
26 
27  MessageAuthenticationCode* clone() const override { return new Poly1305; }
28 
29  void clear() override;
30 
31  size_t output_length() const override { return 16; }
32 
34  {
35  return Key_Length_Specification(32);
36  }
37 
38  private:
39  void add_data(const uint8_t[], size_t) override;
40  void final_result(uint8_t[]) override;
41  void key_schedule(const uint8_t[], size_t) override;
42 
45  size_t m_buf_pos = 0;
46  };
47 
48 }
49 
50 #endif
int(* final)(unsigned char *, CTX *)
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:31
MessageAuthenticationCode * clone() const override
Definition: poly1305.h:27
std::string name() const override
Definition: poly1305.h:25
virtual void clear()=0
Key_Length_Specification key_spec() const override
Definition: poly1305.h:33
Definition: alg_id.cpp:13
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:65
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
Definition: compiler.h:145
size_t output_length() const override
Definition: poly1305.h:31