Botan 2.19.3
Crypto and TLS for C&
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
16namespace 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
std::string name() const override
Definition poly1305.h:25
Key_Length_Specification key_spec() const override
Definition poly1305.h:33
MessageAuthenticationCode * clone() const override
Definition poly1305.h:27
size_t output_length() const override
Definition poly1305.h:31
virtual void clear()=0
int(* final)(unsigned char *, CTX *)
#define BOTAN_PUBLIC_API(maj, min)
Definition compiler.h:31
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
Definition compiler.h:136
std::vector< T, secure_allocator< T > > secure_vector
Definition secmem.h:65