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<?php
/**
* Encrypt/decrypt with encryptionKey.
*
* @author Alex Bilbie <hello@alexbilbie.com>
* @copyright Copyright (c) Alex Bilbie
* @license http://mit-license.org/
*
* @link https://github.com/thephpleague/oauth2-server
*/
namespace League\OAuth2\Server;
use Defuse\Crypto\Crypto;
use Defuse\Crypto\Key;
use Exception;
use LogicException;
trait CryptTrait
{
/**
* @var string|Key|null
*/
protected $encryptionKey;
/**
* Encrypt data with encryptionKey.
*
* @param string $unencryptedData
*
* @throws LogicException
*
* @return string
*/
protected function encrypt($unencryptedData)
{
try {
if ($this->encryptionKey instanceof Key) {
return Crypto::encrypt($unencryptedData, $this->encryptionKey);
}
if (\is_string($this->encryptionKey)) {
return Crypto::encryptWithPassword($unencryptedData, $this->encryptionKey);
}
throw new LogicException('Encryption key not set when attempting to encrypt');
} catch (Exception $e) {
throw new LogicException($e->getMessage(), 0, $e);
}
}
/**
* Decrypt data with encryptionKey.
*
* @param string $encryptedData
*
* @throws LogicException
*
* @return string
*/
protected function decrypt($encryptedData)
{
try {
if ($this->encryptionKey instanceof Key) {
return Crypto::decrypt($encryptedData, $this->encryptionKey);
}
if (\is_string($this->encryptionKey)) {
return Crypto::decryptWithPassword($encryptedData, $this->encryptionKey);
}
throw new LogicException('Encryption key not set when attempting to decrypt');
} catch (Exception $e) {
throw new LogicException($e->getMessage(), 0, $e);
}
}
/**
* Set the encryption key
*
* @param string|Key $key
*/
public function setEncryptionKey($key = null)
{
$this->encryptionKey = $key;
}
}