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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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/** |
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* Class AsymmetricEncryptionAdapter |
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* @package Quantum\Libraries\Encryption |
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*/ |
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class AsymmetricEncryptionAdapter implements EncryptionInterface |
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{ |
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/** |
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* Digest algorithm |
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*/ |
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const DIGEST_ALGO = 'SHA512'; |
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/** |
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* Key bits |
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*/ |
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const KEY_BITS = 1024; |
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/** |
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* @var string |
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*/ |
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private $publicKey; |
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/** |
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* @var string |
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*/ |
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private $privateKey; |
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/** |
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* @throws CryptorException |
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*/ |
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public function __construct() |
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{ |
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$keyPair = $this->generateKeyPair(); |
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$this->publicKey = $keyPair['public']; |
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$this->privateKey = $keyPair['private']; |
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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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* @throws CryptorException |
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*/ |
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public function encrypt(string $plain): string |
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{ |
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if(!$this->publicKey) { |
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throw CryptorException::publicKeyNotProvided(); |
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} |
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openssl_public_encrypt($plain, $encrypted, $this->publicKey); |
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return base64_encode($encrypted); |
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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 $encrypted): string |
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{ |
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if (!$this->privateKey) { |
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throw CryptorException::privateKeyNotProvided(); |
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} |
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openssl_private_decrypt(base64_decode($encrypted), $decrypted, $this->privateKey); |
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return $decrypted; |
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} |
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/** |
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* @return array |
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* @throws CryptorException |
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*/ |
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private function generateKeyPair(): array |
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{ |
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$resource = openssl_pkey_new([ |
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"private_key_type" => OPENSSL_KEYTYPE_RSA, |
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'private_key_bits' => self::KEY_BITS, |
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'digest_alg' => self::DIGEST_ALGO, |
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]); |
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if (!$resource) { |
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throw CryptorException::configNotFound(); |
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} |
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openssl_pkey_export($resource, $privateKey); |
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$publicKey = openssl_pkey_get_details($resource)['key']; |
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return [ |
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'private' => $privateKey, |
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'public' => $publicKey |
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]; |
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} |
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} |
softberg /
quantum-php-core
