460b9539 |
1 | /* |
2 | * This file is part of DisOrder |
3 | * Copyright (C) 2004, 2006 Richard Kettlewell |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, but |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
18 | * USA |
19 | */ |
20 | |
21 | #include <config.h> |
22 | #include "types.h" |
23 | |
24 | #include <stddef.h> |
25 | #include <gcrypt.h> |
26 | |
27 | #include "hex.h" |
28 | #include "log.h" |
29 | #include "authhash.h" |
30 | |
31 | #ifndef AUTHHASH |
32 | # define AUTHHASH GCRY_MD_SHA1 |
33 | #endif |
34 | |
35 | const char *authhash(const void *challenge, size_t nchallenge, |
36 | const char *password) { |
37 | gcrypt_hash_handle h; |
38 | const char *res; |
39 | |
40 | #if HAVE_GCRY_ERROR_T |
41 | { |
42 | gcry_error_t e; |
43 | |
44 | if((e = gcry_md_open(&h, AUTHHASH, 0))) { |
45 | error(0, "gcry_md_open: %s", gcry_strerror(e)); |
46 | return 0; |
47 | } |
48 | } |
49 | #else |
50 | h = gcry_md_open(AUTHHASH, 0); |
51 | #endif |
52 | gcry_md_write(h, password, strlen(password)); |
53 | gcry_md_write(h, challenge, nchallenge); |
54 | res = hex(gcry_md_read(h, AUTHHASH), gcry_md_get_algo_dlen(AUTHHASH)); |
55 | gcry_md_close(h); |
56 | return res; |
57 | } |
58 | |
59 | /* |
60 | Local Variables: |
61 | c-basic-offset:2 |
62 | comment-column:40 |
63 | fill-column:79 |
64 | End: |
65 | */ |