/src/botan/build/include/botan/internal/siphash.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * SipHash |
3 | | * (C) 2014,2015 Jack Lloyd |
4 | | * |
5 | | * Botan is released under the Simplified BSD License (see license.txt) |
6 | | */ |
7 | | |
8 | | #ifndef BOTAN_SIPHASH_H_ |
9 | | #define BOTAN_SIPHASH_H_ |
10 | | |
11 | | #include <botan/mac.h> |
12 | | |
13 | | namespace Botan { |
14 | | |
15 | | class SipHash final : public MessageAuthenticationCode |
16 | | { |
17 | | public: |
18 | 0 | SipHash(size_t c = 2, size_t d = 4) : m_C(c), m_D(d) {} |
19 | | |
20 | | void clear() override; |
21 | | std::string name() const override; |
22 | | |
23 | | std::unique_ptr<MessageAuthenticationCode> new_object() const override; |
24 | | |
25 | 0 | size_t output_length() const override { return 8; } |
26 | | |
27 | | Key_Length_Specification key_spec() const override |
28 | 0 | { |
29 | 0 | return Key_Length_Specification(16); |
30 | 0 | } |
31 | | private: |
32 | | void add_data(const uint8_t[], size_t) override; |
33 | | void final_result(uint8_t[]) override; |
34 | | void key_schedule(const uint8_t[], size_t) override; |
35 | | |
36 | | const size_t m_C, m_D; |
37 | | secure_vector<uint64_t> m_K; |
38 | | secure_vector<uint64_t> m_V; |
39 | | uint64_t m_mbuf = 0; |
40 | | size_t m_mbuf_pos = 0; |
41 | | uint8_t m_words = 0; |
42 | | }; |
43 | | |
44 | | } |
45 | | |
46 | | #endif |