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OFScrypt.h
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1/*
2 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
3 *
4 * All rights reserved.
5 *
6 * This file is part of ObjFW. It may be distributed under the terms of the
7 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
8 * the packaging of this file.
9 *
10 * Alternatively, it may be distributed under the terms of the GNU General
11 * Public License, either version 2 or 3, which can be found in the file
12 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
13 * file.
14 */
15
16#ifndef __STDC_LIMIT_MACROS
17# define __STDC_LIMIT_MACROS
18#endif
19#ifndef __STDC_CONSTANT_MACROS
20# define __STDC_CONSTANT_MACROS
21#endif
22
23#import "macros.h"
24
25OF_ASSUME_NONNULL_BEGIN
26
29@class OFHMAC;
30
34typedef struct {
36 size_t blockSize;
38 size_t costFactor;
42 const unsigned char *salt;
44 size_t saltLength;
46 const char *password;
50 unsigned char *key;
56 size_t keyLength;
60
61#ifdef __cplusplus
62extern "C" {
63#endif
64extern void OFSalsa20_8Core(uint32_t buffer[_Nonnull 16]);
65extern void OFScryptBlockMix(uint32_t *output, const uint32_t *input,
66 size_t blockSize);
67extern void OFScryptROMix(uint32_t *buffer, size_t blockSize,
68 size_t costFactor, uint32_t *tmp);
69
75extern void OFScrypt(OFScryptParameters parameters);
76#ifdef __cplusplus
77}
78#endif
79
80OF_ASSUME_NONNULL_END
void OFScrypt(OFScryptParameters parameters)
Derives a key from a password and a salt using scrypt.
Definition OFScrypt.m:141
A class which provides methods to calculate an HMAC.
Definition OFHMAC.h:28
The parameters for OFScrypt.
Definition OFScrypt.h:34
size_t parallelization
The parallelization to use.
Definition OFScrypt.h:40
size_t keyLength
The desired length for the derived key.
Definition OFScrypt.h:56
size_t saltLength
The length of the salt.
Definition OFScrypt.h:44
const char * password
The password to derive a key from.
Definition OFScrypt.h:46
bool allowsSwappableMemory
Whether data may be stored in swappable memory.
Definition OFScrypt.h:58
unsigned char * key
The buffer to write the key to.
Definition OFScrypt.h:50
size_t blockSize
The block size to use.
Definition OFScrypt.h:36
size_t costFactor
The CPU/memory cost factor to use.
Definition OFScrypt.h:38
const unsigned char * salt
The salt to derive a key with.
Definition OFScrypt.h:42
size_t passwordLength
The length of the password.
Definition OFScrypt.h:48