BadVPN – Blame information for rev 1
?pathlinks?
Rev | Author | Line No. | Line |
---|---|---|---|
1 | office | 1 | /** |
2 | * @file BHash.h |
||
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 | * @section DESCRIPTION |
||
30 | * |
||
31 | * Cryptographic hash funtions abstraction. |
||
32 | */ |
||
33 | |||
34 | #ifndef BADVPN_SECURITY_BHASH_H |
||
35 | #define BADVPN_SECURITY_BHASH_H |
||
36 | |||
37 | #include <stdint.h> |
||
38 | |||
39 | #include <openssl/md5.h> |
||
40 | #include <openssl/sha.h> |
||
41 | |||
42 | #include <misc/debug.h> |
||
43 | |||
44 | #define BHASH_TYPE_MD5 1 |
||
45 | #define BHASH_TYPE_MD5_SIZE 16 |
||
46 | |||
47 | #define BHASH_TYPE_SHA1 2 |
||
48 | #define BHASH_TYPE_SHA1_SIZE 20 |
||
49 | |||
50 | #define BHASH_MAX_SIZE 20 |
||
51 | |||
52 | /** |
||
53 | * Checks if the given hash type number is valid. |
||
54 | * |
||
55 | * @param type hash type number |
||
56 | * @return 1 if valid, 0 if not |
||
57 | */ |
||
58 | int BHash_type_valid (int type); |
||
59 | |||
60 | /** |
||
61 | * Returns the size of a hash. |
||
62 | * |
||
63 | * @param cipher hash type number. Must be valid. |
||
64 | * @return hash size in bytes |
||
65 | */ |
||
66 | int BHash_size (int type); |
||
67 | |||
68 | /** |
||
69 | * Calculates a hash. |
||
70 | * {@link BSecurity_GlobalInitThreadSafe} must have been done if this is |
||
71 | * being called from a non-main thread. |
||
72 | * |
||
73 | * @param type hash type number. Must be valid. |
||
74 | * @param data data to calculate the hash of |
||
75 | * @param data_len length of data |
||
76 | * @param out the hash will be written here. Must not overlap with data. |
||
77 | */ |
||
78 | void BHash_calculate (int type, uint8_t *data, int data_len, uint8_t *out); |
||
79 | |||
80 | #endif |