implemented sha2_hasher which supports SHA-256, SHA-384 and SHA-512
[strongswan.git] / src / libstrongswan / crypto / hashers / hasher.c
1 /**
2 * @file hasher.c
3 *
4 * @brief Generic constructor for hasher_t.
5 *
6 */
7
8 /*
9 * Copyright (C) 2005-2006 Martin Willi
10 * Copyright (C) 2005 Jan Hutter
11 * Hochschule fuer Technik Rapperswil
12 *
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
17 *
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
20 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 * for more details.
22 */
23
24
25 #include "hasher.h"
26
27 #include <crypto/hashers/sha1_hasher.h>
28 #include <crypto/hashers/sha2_hasher.h>
29 #include <crypto/hashers/md5_hasher.h>
30
31 /**
32 * String mappings for hash_algorithm_t.
33 */
34 mapping_t hash_algorithm_m[] = {
35 {HASH_MD2,"HASH_MD2"},
36 {HASH_MD5,"HASH_MD5"},
37 {HASH_SHA1,"HASH_SHA1"},
38 {HASH_SHA256,"HASH_SHA256"},
39 {HASH_SHA384,"HASH_SHA384"},
40 {HASH_SHA512,"HASH_SHA512"},
41 {MAPPING_END, NULL}
42 };
43
44 /*
45 * Described in header.
46 */
47 hasher_t *hasher_create(hash_algorithm_t hash_algorithm)
48 {
49 switch (hash_algorithm)
50 {
51 case HASH_SHA1:
52 {
53 return (hasher_t*)sha1_hasher_create();
54 }
55 case HASH_SHA256:
56 case HASH_SHA384:
57 case HASH_SHA512:
58 {
59 return (hasher_t*)sha2_hasher_create(hash_algorithm);
60 }
61 case HASH_MD5:
62 {
63 return (hasher_t*)md5_hasher_create();
64 }
65 default:
66 return NULL;
67 }
68 }