#acsc2021 <?php include "config.php"; $msg = $_POST['msg'] ?? ""; $name = $_POST['name'] ?? ""; if ( strlen($name) < 4 || strlen($msg) < 8 ) highlight_file(__FILE__) && exit(); $data = array( "name" => $name, "msg" => $msg, "flag" => "ACSC{" . $KEY . "}" // try to get this flag! ); $iv = openssl_ran…