1 | /* pbkdf2.h |
2 | |
3 | PKCS #5 password-based key derivation function PBKDF2, see RFC 2898. |
4 | |
5 | Copyright (C) 2012 Simon Josefsson |
6 | |
7 | This file is part of GNU Nettle. |
8 | |
9 | GNU Nettle is free software: you can redistribute it and/or |
10 | modify it under the terms of either: |
11 | |
12 | * the GNU Lesser General Public License as published by the Free |
13 | Software Foundation; either version 3 of the License, or (at your |
14 | option) any later version. |
15 | |
16 | or |
17 | |
18 | * the GNU General Public License as published by the Free |
19 | Software Foundation; either version 2 of the License, or (at your |
20 | option) any later version. |
21 | |
22 | or both in parallel, as here. |
23 | |
24 | GNU Nettle is distributed in the hope that it will be useful, |
25 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
26 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
27 | General Public License for more details. |
28 | |
29 | You should have received copies of the GNU General Public License and |
30 | the GNU Lesser General Public License along with this program. If |
31 | not, see http://www.gnu.org/licenses/. |
32 | */ |
33 | |
34 | #ifndef NETTLE_PBKDF2_H_INCLUDED |
35 | #define NETTLE_PBKDF2_H_INCLUDED |
36 | |
37 | #include "nettle-meta.h" |
38 | |
39 | #ifdef __cplusplus |
40 | extern "C" |
41 | { |
42 | #endif |
43 | |
44 | /* Namespace mangling */ |
45 | #define pbkdf2 nettle_pbkdf2 |
46 | #define pbkdf2_hmac_sha1 nettle_pbkdf2_hmac_sha1 |
47 | #define pbkdf2_hmac_sha256 nettle_pbkdf2_hmac_sha256 |
48 | |
49 | void |
50 | pbkdf2 (void *mac_ctx, |
51 | nettle_hash_update_func *update, |
52 | nettle_hash_digest_func *digest, |
53 | size_t digest_size, unsigned iterations, |
54 | size_t salt_length, const uint8_t *salt, |
55 | size_t length, uint8_t *dst); |
56 | |
57 | #define PBKDF2(ctx, update, digest, digest_size, \ |
58 | iterations, salt_length, salt, length, dst) \ |
59 | (0 ? ((update)((ctx), 0, (uint8_t *) 0), \ |
60 | (digest)((ctx), 0, (uint8_t *) 0)) \ |
61 | : pbkdf2 ((ctx), \ |
62 | (nettle_hash_update_func *)(update), \ |
63 | (nettle_hash_digest_func *)(digest), \ |
64 | (digest_size), (iterations), \ |
65 | (salt_length), (salt), (length), (dst))) |
66 | |
67 | /* PBKDF2 with specific PRFs. */ |
68 | |
69 | void |
70 | pbkdf2_hmac_sha1 (size_t key_length, const uint8_t *key, |
71 | unsigned iterations, |
72 | size_t salt_length, const uint8_t *salt, |
73 | size_t length, uint8_t *dst); |
74 | |
75 | void |
76 | pbkdf2_hmac_sha256 (size_t key_length, const uint8_t *key, |
77 | unsigned iterations, |
78 | size_t salt_length, const uint8_t *salt, |
79 | size_t length, uint8_t *dst); |
80 | |
81 | #ifdef __cplusplus |
82 | } |
83 | #endif |
84 | |
85 | #endif /* NETTLE_PBKDF2_H_INCLUDED */ |
86 | |