1 #ifndef C_TOXCORE_TOXENCRYPTSAVE_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_PBKDF2_SHA256_H
2 #define C_TOXCORE_TOXENCRYPTSAVE_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_PBKDF2_SHA256_H
3 
4 #ifdef HAVE_CONFIG_H
5 #include "config.h"
6 #endif
7 #ifdef  VANILLA_NACL /* toxcore only uses this when libsodium is unavailable */
8 
9 /*-
10  * Copyright 2005,2007,2009 Colin Percival
11  * All rights reserved.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  */
35 
36 #ifndef _SHA256_H_
37 #define _SHA256_H_
38 
39 #include <sys/types.h>
40 
41 #include <stdint.h>
42 
43 #include "crypto_auth_hmacsha256.h"
44 
45 /**
46  * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen):
47  * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and
48  * write the output to buf.  The value dkLen must be at most 32 * (2^32 - 1).
49  */
50 void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t,
51                    uint64_t, uint8_t *, size_t);
52 
53 #endif /* !_SHA256_H_ */
54 
55 #endif
56 
57 #endif
58