/*
* 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/>.
*/
#import "OFCryptographicHash.h"
OF_ASSUME_NONNULL_BEGIN
@class OFSecureData;
/**
* @class OFSHA224Or256Hash OFSHA224Or256Hash.h ObjFW/ObjFW.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