Very simple lib for symmetric en/decrypt messages so they could be sent through untrusted channels.
composer require dorantor/simple-crypt
// 32 byte string as key
$key = md5('simple-crypt'); // 1b8ee2dc7723b2846792349dd4c74dc2
$crypt = new \Dorantor\SimpleCrypt($key);
$eMessage = $crypt->encrypt('Secret message that should be read only by trusted ones');
// ...
$oMessage = $crypt->decrypt($eMessage);
The library is released under the MIT License. See the bundled LICENSE file for details.