88 lines
2.7 KiB
PHP
88 lines
2.7 KiB
PHP
<?php
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/**
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* RSA module.
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*
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* This file is part of MadelineProto.
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* MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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* MadelineProto 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.
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* See the GNU Affero General Public License for more details.
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* You should have received a copy of the GNU General Public License along with MadelineProto.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Daniil Gentili <daniil@daniil.it>
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* @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
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* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
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*
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* @link https://docs.madelineproto.xyz MadelineProto documentation
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*/
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namespace danog\MadelineProto;
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use danog\MadelineProto\TL\TL;
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/**
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* RSA class.
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*/
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class RSA
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{
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use \danog\Serializable;
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/**
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* Exponent.
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*
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* @var \tgseclib\Math\BigInteger
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*/
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public $e;
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/**
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* Modulus.
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*
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* @var \tgseclib\Math\BigInteger
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*/
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public $n;
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/**
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* Fingerprint.
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*
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* @var string
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*/
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public $fp;
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/**
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* Load RSA key.
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*
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* @param TL $TL TL serializer
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* @param string $rsa_key RSA key
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*
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* @return \Generator<self>
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*/
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public function load(TL $TL, string $rsa_key): \Generator
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{
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\danog\MadelineProto\Logger::log(\danog\MadelineProto\Lang::$current_lang['rsa_init'], Logger::ULTRA_VERBOSE);
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\danog\MadelineProto\Logger::log(\danog\MadelineProto\Lang::$current_lang['loading_key'], Logger::ULTRA_VERBOSE);
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$key = \tgseclib\Crypt\RSA::load($rsa_key);
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$this->n = Tools::getVar($key, 'modulus');
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$this->e = Tools::getVar($key, 'exponent');
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\danog\MadelineProto\Logger::log(\danog\MadelineProto\Lang::$current_lang['computing_fingerprint'], Logger::ULTRA_VERBOSE);
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$this->fp = \substr(\sha1((yield from $TL->serializeObject(['type' => 'bytes'], $this->n->toBytes(), 'key')).(yield from $TL->serializeObject(['type' => 'bytes'], $this->e->toBytes(), 'key')), true), -8);
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return $this;
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}
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/**
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* Sleep function.
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*
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* @return array
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*/
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public function __sleep(): array
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{
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return ['e', 'n', 'fp'];
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}
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/**
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* Encrypt data.
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*
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* @param string $data Data to encrypt
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*
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* @return string
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*/
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public function encrypt($data): string
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{
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return (new \tgseclib\Math\BigInteger((string) $data, 256))->powMod($this->e, $this->n)->toBytes();
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}
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}
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