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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 program is free software: you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License version 3.0 only,
8 * as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
13 * version 3.0 for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public License
16 * version 3.0 along with this program. If not, see
17 * <https://www.gnu.org/licenses/>.
18 */
19
20#ifndef __STDC_LIMIT_MACROS
21# define __STDC_LIMIT_MACROS
22#endif
23#ifndef __STDC_CONSTANT_MACROS
24# define __STDC_CONSTANT_MACROS
25#endif
26
27#import "macros.h"
28
29OF_ASSUME_NONNULL_BEGIN
30
33@class OFHMAC;
34
38typedef struct {
40 size_t blockSize;
42 size_t costFactor;
46 const unsigned char *salt;
48 size_t saltLength;
50 const char *password;
54 unsigned char *key;
60 size_t keyLength;
64
65#ifdef __cplusplus
66extern "C" {
67#endif
68extern void OFSalsa20_8Core(uint32_t buffer[_Nonnull 16]);
69extern void OFScryptBlockMix(uint32_t *output, const uint32_t *input,
70 size_t blockSize);
71extern void OFScryptROMix(uint32_t *buffer, size_t blockSize,
72 size_t costFactor, uint32_t *tmp);
73
79extern void OFScrypt(OFScryptParameters parameters);
80#ifdef __cplusplus
81}
82#endif
83
84OF_ASSUME_NONNULL_END
void OFScrypt(OFScryptParameters parameters)
Derives a key from a password and a salt using scrypt.
Definition OFScrypt.m:145
A class which provides methods to calculate an HMAC.
Definition OFHMAC.h:32
The parameters for OFScrypt.
Definition OFScrypt.h:38
size_t parallelization
The parallelization to use.
Definition OFScrypt.h:44
size_t keyLength
The desired length for the derived key.
Definition OFScrypt.h:60
size_t saltLength
The length of the salt.
Definition OFScrypt.h:48
const char * password
The password to derive a key from.
Definition OFScrypt.h:50
bool allowsSwappableMemory
Whether data may be stored in swappable memory.
Definition OFScrypt.h:62
unsigned char * key
The buffer to write the key to.
Definition OFScrypt.h:54
size_t blockSize
The block size to use.
Definition OFScrypt.h:40
size_t costFactor
The CPU/memory cost factor to use.
Definition OFScrypt.h:42
const unsigned char * salt
The salt to derive a key with.
Definition OFScrypt.h:46
size_t passwordLength
The length of the password.
Definition OFScrypt.h:52