I have encoded url parameter in php using 'base64_encode' and 'hash' like this,
http://localhost:81/url_encrypt/page-2.php?param=STZ6YmdBRVRJMjRsSVJtUndxblRjQT09
Is it safe or it can be cracked easily???
If it can be cracked, then what will be param=???? and how it will be cracked?