I found a note in an556 about adding an quartus.ini file, but still not seeing the encryption settings. I'm running a pc with manjaro as the operating system (have found my compiles run faster in linux)
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.
for more information refer the below old thread,