/src/botan/build/include/botan/bcrypt_pbkdf.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * (C) 2018,2019 Jack Lloyd |
3 | | * |
4 | | * Botan is released under the Simplified BSD License (see license.txt) |
5 | | */ |
6 | | |
7 | | #ifndef BOTAN_PBKDF_BCRYPT_H_ |
8 | | #define BOTAN_PBKDF_BCRYPT_H_ |
9 | | |
10 | | #include <botan/pwdhash.h> |
11 | | |
12 | | BOTAN_FUTURE_INTERNAL_HEADER(bcrypt_pbkdf.h) |
13 | | |
14 | | namespace Botan { |
15 | | |
16 | | /** |
17 | | * Bcrypt-PBKDF key derivation function |
18 | | */ |
19 | | class BOTAN_PUBLIC_API(2,11) Bcrypt_PBKDF final : public PasswordHash |
20 | | { |
21 | | public: |
22 | | Bcrypt_PBKDF(size_t iterations); |
23 | | |
24 | | Bcrypt_PBKDF(const Bcrypt_PBKDF& other) = default; |
25 | | Bcrypt_PBKDF& operator=(const Bcrypt_PBKDF&) = default; |
26 | | |
27 | | /** |
28 | | * Derive a new key under the current Bcrypt-PBKDF parameter set |
29 | | */ |
30 | | void derive_key(uint8_t out[], size_t out_len, |
31 | | const char* password, size_t password_len, |
32 | | const uint8_t salt[], size_t salt_len) const override; |
33 | | |
34 | | std::string to_string() const override; |
35 | | |
36 | 0 | size_t iterations() const override { return m_iterations; } |
37 | | |
38 | 0 | size_t parallelism() const override { return 0; } |
39 | | |
40 | 0 | size_t memory_param() const override { return 0; } |
41 | | |
42 | 0 | size_t total_memory_usage() const override { return 4096; } |
43 | | |
44 | | private: |
45 | | size_t m_iterations; |
46 | | }; |
47 | | |
48 | | class BOTAN_PUBLIC_API(2,11) Bcrypt_PBKDF_Family final : public PasswordHashFamily |
49 | | { |
50 | | public: |
51 | 0 | Bcrypt_PBKDF_Family() {} |
52 | | |
53 | | std::string name() const override; |
54 | | |
55 | | std::unique_ptr<PasswordHash> tune(size_t output_length, |
56 | | std::chrono::milliseconds msec, |
57 | | size_t max_memory) const override; |
58 | | |
59 | | std::unique_ptr<PasswordHash> default_params() const override; |
60 | | |
61 | | std::unique_ptr<PasswordHash> from_iterations(size_t iter) const override; |
62 | | |
63 | | std::unique_ptr<PasswordHash> from_params( |
64 | | size_t i, size_t, size_t) const override; |
65 | | }; |
66 | | |
67 | | /** |
68 | | * Bcrypt PBKDF compatible with OpenBSD bcrypt_pbkdf |
69 | | */ |
70 | | BOTAN_DEPRECATED("Use PasswordHashFamily+PasswordHash") |
71 | | inline void bcrypt_pbkdf(uint8_t output[], size_t output_len, |
72 | | const char* password, size_t password_len, |
73 | | const uint8_t salt[], size_t salt_len, |
74 | | size_t rounds) |
75 | 0 | { |
76 | 0 | auto pwdhash_fam = PasswordHashFamily::create_or_throw("Bcrypt-PBKDF"); |
77 | 0 | auto pwdhash = pwdhash_fam->from_params(rounds); |
78 | 0 | pwdhash->derive_key(output, output_len, |
79 | 0 | password, password_len, |
80 | 0 | salt, salt_len); |
81 | 0 | } |
82 | | |
83 | | } |
84 | | |
85 | | #endif |