|
1 /*- |
|
2 * Copyright 2005,2007,2009 Colin Percival |
|
3 * All rights reserved. |
|
4 * |
|
5 * Redistribution and use in source and binary forms, with or without |
|
6 * modification, are permitted provided that the following conditions |
|
7 * are met: |
|
8 * 1. Redistributions of source code must retain the above copyright |
|
9 * notice, this list of conditions and the following disclaimer. |
|
10 * 2. Redistributions in binary form must reproduce the above copyright |
|
11 * notice, this list of conditions and the following disclaimer in the |
|
12 * documentation and/or other materials provided with the distribution. |
|
13 * |
|
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
|
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
|
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
|
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
|
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
|
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
|
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
|
24 * SUCH DAMAGE. |
|
25 * |
|
26 * $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $ |
|
27 */ |
|
28 |
|
29 #ifndef _SHA256_H_ |
|
30 #define _SHA256_H_ |
|
31 |
|
32 #ifdef __cplusplus |
|
33 extern "C" { |
|
34 #endif |
|
35 |
|
36 #include <sys/types.h> |
|
37 |
|
38 #include <stdint.h> |
|
39 |
|
40 typedef struct SHA256Context { |
|
41 uint32_t state[8]; |
|
42 uint32_t count[2]; |
|
43 unsigned char buf[64]; |
|
44 } SHA256_CTX; |
|
45 |
|
46 typedef struct HMAC_SHA256Context { |
|
47 SHA256_CTX ictx; |
|
48 SHA256_CTX octx; |
|
49 } HMAC_SHA256_CTX; |
|
50 |
|
51 void SHA256_Init(SHA256_CTX *); |
|
52 void SHA256_Update(SHA256_CTX *, const void *, size_t); |
|
53 void SHA256_Final(unsigned char [32], SHA256_CTX *); |
|
54 void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t); |
|
55 void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t); |
|
56 void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *); |
|
57 |
|
58 /** |
|
59 * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): |
|
60 * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and |
|
61 * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). |
|
62 */ |
|
63 void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, |
|
64 uint64_t, uint8_t *, size_t); |
|
65 |
|
66 #ifdef __cplusplus |
|
67 } |
|
68 #endif |
|
69 |
|
70 #endif /* !_SHA256_H_ */ |