64 lines
1.8 KiB
PHP
64 lines
1.8 KiB
PHP
<?php
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/**
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* Nextcloud - user_sql
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* Copyright (C) 2018 Marcin Łojewski <dev@mlojewski.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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namespace OCA\UserSQL\HashAlgorithm;
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use OCA\UserSQL\HashAlgorithm\Base\BaseCrypt;
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use OCA\UserSQL\HashAlgorithm\Base\Utils;
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/**
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* Extended DES Crypt hashing implementation.
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* @author Marcin Łojewski <dev@mlojewski.me>
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*/
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class CryptExtendedDES extends BaseCrypt
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{
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use Utils;
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/**
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* @inheritdoc
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*/
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public function getVisibleName()
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{
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return "Extended DES (Crypt)";
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}
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/**
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* @inheritdoc
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*/
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protected function getSalt()
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{
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// TODO - add support for options: iteration_count.
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return self::base64IntEncode(1000) . self::randomString(4, self::SALT_ALPHABET);
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}
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private static function base64IntEncode($number)
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{
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$alphabet = str_split(self::SALT_ALPHABET);
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$chars = array();
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$base = sizeof($alphabet);
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while ($number) {
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$rem = $number % $base;
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$number = (int)($number / $base);
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$arr[] = $alphabet[$rem];
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}
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$string = implode($chars);
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return str_pad($string, 4, '.', STR_PAD_RIGHT);
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}
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}
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