| 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 | */ |