/* * Copyright (c) 2008-2021 Jonathan Schleifer * * 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 { @private OFSecureData *_iVarsData; @protected struct of_sha224_or_256_hash_ivars { uint32_t state[8]; uint64_t bits; union of_sha224_or_256_hash_buffer { 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