/src/botan/build/include/botan/internal/blowfish.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Blowfish |
3 | | * (C) 1999-2011 Jack Lloyd |
4 | | * |
5 | | * Botan is released under the Simplified BSD License (see license.txt) |
6 | | */ |
7 | | |
8 | | #ifndef BOTAN_BLOWFISH_H_ |
9 | | #define BOTAN_BLOWFISH_H_ |
10 | | |
11 | | #include <botan/block_cipher.h> |
12 | | |
13 | | namespace Botan { |
14 | | |
15 | | /** |
16 | | * Blowfish |
17 | | */ |
18 | | class BOTAN_TEST_API Blowfish final : public Block_Cipher_Fixed_Params<8, 1, 56> |
19 | | { |
20 | | public: |
21 | | void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override; |
22 | | void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override; |
23 | | |
24 | | /** |
25 | | * Modified EKSBlowfish key schedule, used for bcrypt password hashing |
26 | | */ |
27 | | void salted_set_key(const uint8_t key[], size_t key_length, |
28 | | const uint8_t salt[], size_t salt_length, |
29 | | const size_t workfactor, bool salt_first = false); |
30 | | |
31 | | void clear() override; |
32 | 0 | std::string name() const override { return "Blowfish"; } |
33 | 0 | std::unique_ptr<BlockCipher> new_object() const override { return std::make_unique<Blowfish>(); } |
34 | | private: |
35 | | void key_schedule(const uint8_t key[], size_t length) override; |
36 | | |
37 | | void key_expansion(const uint8_t key[], |
38 | | size_t key_length, |
39 | | const uint8_t salt[], |
40 | | size_t salt_length); |
41 | | |
42 | | void generate_sbox(secure_vector<uint32_t>& box, |
43 | | uint32_t& L, uint32_t& R, |
44 | | const uint8_t salt[], |
45 | | size_t salt_length, |
46 | | size_t salt_off) const; |
47 | | |
48 | | secure_vector<uint32_t> m_S, m_P; |
49 | | }; |
50 | | |
51 | | } |
52 | | |
53 | | #endif |