OFSHA224Or256Hash.h

/*
 * 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;
 
@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