mirror of
https://github.com/nuxsmin/sysPass.git
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124 lines
3.2 KiB
PHP
124 lines
3.2 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* sysPass
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*
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* @author nuxsmin
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* @link https://syspass.org
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* @copyright 2012-2024, Rubén Domínguez nuxsmin@$syspass.org
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*
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* This file is part of sysPass.
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*
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* sysPass is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* sysPass 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with sysPass. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace SP\Core\Crypt;
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use phpseclib\Crypt\RSA;
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use SP\Domain\Core\Crypt\CryptPKIInterface;
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use SP\Domain\Core\Exceptions\SPException;
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use SP\Domain\File\Ports\FileHandlerInterface;
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use SP\Infrastructure\File\FileException;
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use function SP\processException;
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/**
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* Class CryptPKI para el manejo de las funciones para PKI
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*
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* @package SP
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*/
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final class CryptPKI implements CryptPKIInterface
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{
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public const KEY_SIZE = 1024;
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public const PUBLIC_KEY_FILE = CONFIG_PATH.DIRECTORY_SEPARATOR.'pubkey.pem';
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public const PRIVATE_KEY_FILE = CONFIG_PATH.DIRECTORY_SEPARATOR.'key.pem';
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/**
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* @throws SPException
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*/
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public function __construct(
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private RSA $rsa,
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private FileHandlerInterface $publicKeyFile,
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private FileHandlerInterface $privateKeyFile
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) {
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$this->setUp();
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}
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/**
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* Check if private and public keys exist
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*
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* @throws SPException
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*/
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private function setUp(): void
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{
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try {
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$this->publicKeyFile->checkFileExists();
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$this->privateKeyFile->checkFileExists();
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} catch (FileException $e) {
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processException($e);
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$this->createKeys();
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}
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}
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/**
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* Crea el par de claves pública y privada
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*
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* @throws FileException
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*/
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public function createKeys(): void
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{
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$keys = $this->rsa->createKey(self::KEY_SIZE);
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$this->publicKeyFile->save($keys['publickey']);
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$this->privateKeyFile->save($keys['privatekey'])->chmod(0600);
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}
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public static function getMaxDataSize(): int
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{
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return (self::KEY_SIZE / 8) - 11;
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}
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/**
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* Devuelve la clave pública desde el archivo
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*
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* @throws FileException
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*/
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public function getPublicKey(): string
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{
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return $this->publicKeyFile->checkFileExists()->readToString();
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}
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/**
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* Desencriptar datos cifrados con la clave pública
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*
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* @throws FileException
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*/
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public function decryptRSA(string $data): ?string
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{
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$this->rsa->setEncryptionMode(RSA::ENCRYPTION_PKCS1);
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$this->rsa->loadKey($this->getPrivateKey(), RSA::PRIVATE_FORMAT_PKCS1);
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return @$this->rsa->decrypt($data) ?: null;
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}
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/**
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* @throws FileException
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*/
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private function getPrivateKey(): string
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{
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return $this->privateKeyFile->checkFileExists()->readToString();
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}
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}
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