<?php namespace TidioLiveChat\Encryption; if (!defined('WPINC')) { die('File loaded directly. Exiting.'); } use TidioLiveChat\Encryption\Exception\DecryptionFailedException; interface EncryptionService { /** * @param string $value * @return string */ public function encrypt($value); /** * @param string $encryptedString * @return string * @throws DecryptionFailedException */ public function decrypt($encryptedString); }