From AN556: "Note: To enable the design security feature for Intel® Quartus® Prime Lite Edition, obtain a license file from Intel® FPGA Technical Support."
NIC id: c48508312662
Please go to Intel FPGA Self Service License Center (https://fpgasupport.intel.com/Licensing/license/index.html) and the submit Contact Customer Service form (https://fpgasupport.intel.com/Licensing/license/contact.html) to request encryption feature license. In the Contact Customer Service form you need to provide your host id, NIC, number of licenses whether fixed or floating type.
Please refer the below old thread for reference,