/*
* Copyright (c) 2008-2021 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.
*/
#import "OFCryptographicHash.h"
OF_ASSUME_NONNULL_BEGIN
@class OFSecureData;
/**
* @class OFSHA224Or256Hash OFSHA224Or256Hash.h ObjFW/OFSHA224Or256Hash.h
*
* @brief A base class for SHA-224 and SHA-256.
*/
@interface OFSHA224Or256Hash: OFObject <OFCryptographicHash>
{
@private
OFSecureData *_iVarsData;
@protected
struct {
uint32_t state[8];
uint64_t bits;
union {
unsigned char bytes[64];
uint32_t words[64];
} buffer;
size_t bufferLength;
} *_iVars;
@private
bool _allowsSwappableMemory;
bool _calculated;
OF_RESERVE_IVARS(OFSHA224Or256Hash, 4)
}
@end
OF_ASSUME_NONNULL_END