OFScrypt.h

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/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3.0 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
 * version 3.0 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3.0 along with this program. If not, see
 * <https://www.gnu.org/licenses/>.
 */
 
#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
 
@class OFHMAC;
 
typedef struct {
    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;
} OFScryptParameters;
 
#ifdef __cplusplus
extern "C" {
#endif
/* No OF_VISIBILITY_HIDDEN so tests can call it. */
extern void _OFSalsa20_8Core(uint32_t buffer[_Nonnull 16]);
extern void _OFScryptBlockMix(uint32_t *output, const uint32_t *input,
    size_t blockSize);
extern void _OFScryptROMix(uint32_t *buffer, size_t blockSize,
    size_t costFactor, uint32_t *tmp);
 
extern void OFScrypt(OFScryptParameters parameters);
#ifdef __cplusplus
}
#endif
 
OF_ASSUME_NONNULL_END