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1 office 1 /**
2 * @file BHash.c
3 * @author Ambroz Bizjak <ambrop7@gmail.com>
4 *
5 * @section LICENSE
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the
15 * names of its contributors may be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29  
30 #include <security/BHash.h>
31  
32 int BHash_type_valid (int type)
33 {
34 switch (type) {
35 case BHASH_TYPE_MD5:
36 case BHASH_TYPE_SHA1:
37 return 1;
38 default:
39 return 0;
40 }
41 }
42  
43 int BHash_size (int type)
44 {
45 switch (type) {
46 case BHASH_TYPE_MD5:
47 return BHASH_TYPE_MD5_SIZE;
48 case BHASH_TYPE_SHA1:
49 return BHASH_TYPE_SHA1_SIZE;
50 default:
51 ASSERT(0)
52 return 0;
53 }
54 }
55  
56 void BHash_calculate (int type, uint8_t *data, int data_len, uint8_t *out)
57 {
58 switch (type) {
59 case BHASH_TYPE_MD5:
60 MD5(data, data_len, out);
61 break;
62 case BHASH_TYPE_SHA1:
63 SHA1(data, data_len, out);
64 break;
65 default:
66 ASSERT(0)
67 ;
68 }
69 }