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<?php |
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/** |
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* Quantum PHP Framework |
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* |
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* An open source software development framework for PHP |
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* |
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* @package Quantum |
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* @author Arman Ag. <[email protected]> |
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* @copyright Copyright (c) 2018 Softberg LLC (https://softberg.org) |
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* @link http://quantum.softberg.org/ |
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* @since 2.9.5 |
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*/ |
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namespace Quantum\Libraries\Encryption\Adapters; |
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use Quantum\Libraries\Encryption\Contracts\EncryptionInterface; |
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use Quantum\Libraries\Encryption\Exceptions\CryptorException; |
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use Quantum\App\Exceptions\AppException; |
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use Quantum\Exceptions\BaseException; |
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/** |
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* Class SymmetricEncryptionAdapter |
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* @package Quantum\Libraries\Encryption |
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*/ |
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class SymmetricEncryptionAdapter implements EncryptionInterface |
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{ |
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/** |
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* Cipher method |
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*/ |
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const CIPHER_METHOD = 'aes-256-cbc'; |
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/** |
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* @var string |
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*/ |
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private $appKey; |
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/** |
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* @throws BaseException |
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*/ |
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public function __construct() |
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{ |
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$appKey = config()->get('app_key'); |
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if (!$appKey) { |
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throw AppException::missingAppKey(); |
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} |
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$this->appKey = $appKey; |
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} |
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/** |
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* @param string $plain |
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* @return string |
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*/ |
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public function encrypt(string $plain): string |
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{ |
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$iv = $this->generateIV(); |
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$encrypted = openssl_encrypt($plain, self::CIPHER_METHOD, $this->appKey, 0, $iv); |
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return base64_encode(base64_encode($encrypted) . '::' . base64_encode($iv)); |
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} |
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/** |
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* @param string $encrypted |
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* @return string |
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* @throws CryptorException |
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*/ |
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public function decrypt(string $encrypted): string |
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{ |
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if (!valid_base64($encrypted)) { |
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return $encrypted; |
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} |
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$data = explode('::', base64_decode($encrypted), 2); |
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if (empty($data) || count($data) < 2) { |
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throw CryptorException::invalidCipher(); |
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} |
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$encryptedData = base64_decode($data[0]); |
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$iv = base64_decode($data[1]); |
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return openssl_decrypt($encryptedData, self::CIPHER_METHOD, $this->appKey, 0, $iv); |
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} |
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/** |
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* @return string |
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*/ |
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private function generateIV(): string |
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{ |
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$length = openssl_cipher_iv_length(self::CIPHER_METHOD); |
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return openssl_random_pseudo_bytes($length); |
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} |
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} |
softberg /
quantum-php-core
