/* * Copyright (c) 2008-2022 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. */ #include "config.h" #import "OFString.h" #import "OFCryptographicHash.h" #import "OFMD5Hash.h" #import "OFRIPEMD160Hash.h" #import "OFSHA1Hash.h" #import "OFSHA224Hash.h" #import "OFSHA256Hash.h" #import "OFSHA384Hash.h" #import "OFSHA512Hash.h" int _OFString_CryptographicHashing_reference; @implementation OFString (CryptographicHashing) static OFString * stringByHashing(Class <OFCryptographicHash> class, OFString *self) { void *pool = objc_autoreleasePoolPush(); id <OFCryptographicHash> hash = [class hashWithAllowsSwappableMemory: true]; size_t digestSize = [class digestSize]; const unsigned char *digest; char cString[digestSize * 2]; [hash updateWithBuffer: self.UTF8String length: self.UTF8StringLength]; digest = hash.digest; for (size_t i = 0; i < digestSize; i++) { uint8_t high, low; high = digest[i] >> 4; low = digest[i] & 0x0F; cString[i * 2] = (high > 9 ? high - 10 + 'a' : high + '0'); cString[i * 2 + 1] = (low > 9 ? low - 10 + 'a' : low + '0'); } objc_autoreleasePoolPop(pool); return [OFString stringWithCString: cString encoding: OFStringEncodingASCII length: digestSize * 2]; } - (OFString *)stringByMD5Hashing { return stringByHashing([OFMD5Hash class], self); } - (OFString *)stringByRIPEMD160Hashing { return stringByHashing([OFRIPEMD160Hash class], self); } - (OFString *)stringBySHA1Hashing { return stringByHashing([OFSHA1Hash class], self); } - (OFString *)stringBySHA224Hashing { return stringByHashing([OFSHA224Hash class], self); } - (OFString *)stringBySHA256Hashing { return stringByHashing([OFSHA256Hash class], self); } - (OFString *)stringBySHA384Hashing { return stringByHashing([OFSHA384Hash class], self); } - (OFString *)stringBySHA512Hashing { return stringByHashing([OFSHA512Hash class], self); } @end