/src/botan/build/include/botan/internal/blake2bmac.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * BLAKE2b MAC |
3 | | * (C) 1999-2007,2014 Jack Lloyd |
4 | | * (C) 2020 Tom Crowley |
5 | | * |
6 | | * Botan is released under the Simplified BSD License (see license.txt) |
7 | | */ |
8 | | |
9 | | #ifndef BOTAN_BLAKE2MAC_H_ |
10 | | #define BOTAN_BLAKE2MAC_H_ |
11 | | |
12 | | #include <botan/mac.h> |
13 | | #include <botan/internal/blake2b.h> |
14 | | |
15 | | namespace Botan { |
16 | | |
17 | | /** |
18 | | * BLAKE2b MAC |
19 | | */ |
20 | | class BLAKE2bMAC final : public MessageAuthenticationCode |
21 | | { |
22 | | public: |
23 | | explicit BLAKE2bMAC(size_t output_bits = 512); |
24 | | |
25 | | BLAKE2bMAC(const BLAKE2bMAC&) = delete; |
26 | | BLAKE2bMAC& operator=(const BLAKE2bMAC&) = delete; |
27 | | |
28 | 0 | std::string name() const override { return m_blake.name(); } |
29 | 0 | size_t output_length() const override { return m_blake.output_length(); } |
30 | | std::unique_ptr<MessageAuthenticationCode> new_object() const override; |
31 | | |
32 | | void clear() override; |
33 | | |
34 | | Key_Length_Specification key_spec() const override |
35 | 0 | { |
36 | 0 | return m_blake.key_spec(); |
37 | 0 | } |
38 | | |
39 | | private: |
40 | | void key_schedule(const uint8_t key[], size_t length) override |
41 | 0 | { |
42 | 0 | m_blake.set_key(key, length); |
43 | 0 | } |
44 | | |
45 | | void add_data(const uint8_t input[], size_t length) override |
46 | 0 | { |
47 | 0 | verify_key_set(m_blake.key_size() > 0); |
48 | 0 | m_blake.update(input, length); |
49 | 0 | } |
50 | | |
51 | | void final_result(uint8_t out[]) override |
52 | 0 | { |
53 | 0 | verify_key_set(m_blake.key_size() > 0); |
54 | 0 | m_blake.final(out); |
55 | 0 | } |
56 | | |
57 | | BLAKE2b m_blake; |
58 | | }; |
59 | | |
60 | | typedef BLAKE2bMAC Blake2bMac; |
61 | | |
62 | | } |
63 | | |
64 | | #endif |