/src/botan/build/include/botan/internal/poly1305.h
Line | Count | Source (jump to first uncovered line) |
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 | | */ |
20 | | class Poly1305 final : public MessageAuthenticationCode |
21 | | { |
22 | | public: |
23 | 0 | std::string name() const override { return "Poly1305"; } |
24 | | |
25 | 0 | std::unique_ptr<MessageAuthenticationCode> new_object() const override { return std::make_unique<Poly1305>(); } |
26 | | |
27 | | void clear() override; |
28 | | |
29 | 0 | size_t output_length() const override { return 16; } |
30 | | |
31 | | Key_Length_Specification key_spec() const override |
32 | 56 | { |
33 | 56 | return Key_Length_Specification(32); |
34 | 56 | } |
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 | | |
41 | | secure_vector<uint64_t> m_poly; |
42 | | secure_vector<uint8_t> m_buf; |
43 | | size_t m_buf_pos = 0; |
44 | | }; |
45 | | |
46 | | } |
47 | | |
48 | | #endif |