/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#ifndef __STDC_LIMIT_MACROS
# define __STDC_LIMIT_MACROS
#endif
#ifndef __STDC_CONSTANT_MACROS
# define __STDC_CONSTANT_MACROS
#endif
#import "macros.h"
OF_ASSUME_NONNULL_BEGIN
/*! @file */
@class OFHMAC;
#ifdef __cplusplus
extern "C" {
#endif
extern void of_salsa20_8_core(uint32_t buffer[_Nonnull 16]);
extern void of_scrypt_block_mix(uint32_t *output, const uint32_t *input,
size_t blockSize);
extern void of_scrypt_romix(uint32_t *buffer, size_t blockSize,
size_t costFactor, uint32_t *tmp);
/*!
* @brief Derives a key from a password and a salt using scrypt.
*
* @param blockSize The block size to use
* @param costFactor The CPU/memory cost factor to use
* @param parallelization The parallelization to use
* @param salt The salt to derive a key with
* @param saltLength The length of the salt
* @param password The password to derive a key from
* @param passwordLength The length of the password
* @param key The buffer to write the key to
* @param keyLength The desired length for the derived key (`key` needs to have
* enough storage)
* @param allowsSwappableMemory Whether data may be stored in swappable memory
*/
extern void of_scrypt(size_t blockSize, size_t costFactor,
size_t parallelization, const unsigned char *salt, size_t saltLength,
const char *password, size_t passwordLength,
unsigned char *key, size_t keyLength, bool allowsSwappableMemory);
#ifdef __cplusplus
}
#endif
OF_ASSUME_NONNULL_END