/src/Botan-3.4.0/build/include/internal/botan/internal/pssr.h
Line | Count | Source |
1 | | /* |
2 | | * PSSR |
3 | | * (C) 1999-2007 Jack Lloyd |
4 | | * |
5 | | * Botan is released under the Simplified BSD License (see license.txt) |
6 | | */ |
7 | | |
8 | | #ifndef BOTAN_PSSR_H_ |
9 | | #define BOTAN_PSSR_H_ |
10 | | |
11 | | #include <botan/hash.h> |
12 | | #include <botan/internal/emsa.h> |
13 | | |
14 | | namespace Botan { |
15 | | |
16 | | /** |
17 | | * PSSR (called EMSA4 in IEEE 1363 and in old versions of the library) |
18 | | */ |
19 | | class PSSR final : public EMSA { |
20 | | public: |
21 | | /** |
22 | | * @param hash the hash function to use |
23 | | */ |
24 | | explicit PSSR(std::unique_ptr<HashFunction> hash); |
25 | | |
26 | | /** |
27 | | * @param hash the hash function to use |
28 | | * @param salt_size the size of the salt to use in bytes |
29 | | */ |
30 | | PSSR(std::unique_ptr<HashFunction> hash, size_t salt_size); |
31 | | |
32 | | std::string name() const override; |
33 | | |
34 | 0 | std::string hash_function() const override { return m_hash->name(); } |
35 | | |
36 | | private: |
37 | | void update(const uint8_t input[], size_t length) override; |
38 | | |
39 | | std::vector<uint8_t> raw_data() override; |
40 | | |
41 | | std::vector<uint8_t> encoding_of(const std::vector<uint8_t>& msg, |
42 | | size_t output_bits, |
43 | | RandomNumberGenerator& rng) override; |
44 | | |
45 | | bool verify(const std::vector<uint8_t>& coded, const std::vector<uint8_t>& raw, size_t key_bits) override; |
46 | | |
47 | | std::unique_ptr<HashFunction> m_hash; |
48 | | size_t m_salt_size; |
49 | | bool m_required_salt_len; |
50 | | }; |
51 | | |
52 | | /** |
53 | | * PSSR_Raw |
54 | | * This accepts a pre-hashed buffer |
55 | | */ |
56 | | class PSSR_Raw final : public EMSA { |
57 | | public: |
58 | | /** |
59 | | * @param hash the hash function to use |
60 | | */ |
61 | | explicit PSSR_Raw(std::unique_ptr<HashFunction> hash); |
62 | | |
63 | | /** |
64 | | * @param hash the hash function to use |
65 | | * @param salt_size the size of the salt to use in bytes |
66 | | */ |
67 | | PSSR_Raw(std::unique_ptr<HashFunction> hash, size_t salt_size); |
68 | | |
69 | 0 | std::string hash_function() const override { return m_hash->name(); } |
70 | | |
71 | | std::string name() const override; |
72 | | |
73 | | private: |
74 | | void update(const uint8_t input[], size_t length) override; |
75 | | |
76 | | std::vector<uint8_t> raw_data() override; |
77 | | |
78 | | std::vector<uint8_t> encoding_of(const std::vector<uint8_t>& msg, |
79 | | size_t output_bits, |
80 | | RandomNumberGenerator& rng) override; |
81 | | |
82 | | bool verify(const std::vector<uint8_t>& coded, const std::vector<uint8_t>& raw, size_t key_bits) override; |
83 | | |
84 | | std::unique_ptr<HashFunction> m_hash; |
85 | | std::vector<uint8_t> m_msg; |
86 | | size_t m_salt_size; |
87 | | bool m_required_salt_len; |
88 | | }; |
89 | | |
90 | | } // namespace Botan |
91 | | |
92 | | #endif |