do I need a license for encryption feature.

Hi,

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,

https://forums.intel.com/s/question/0D50P0000470hlA/i-need-a-license-to-enable-the-design-security-feature-for-quartus-thank-yousoftware-quartus-prime-181-device-cyclone-v?language=en_US&s1oid=00DU0000000YT3c&s1nid=0DB0P000000U1Hq&emkind=chatterCommentNotification&s1uid=0050P000008ASID&emtm=1542241285784&fromEmail=1&s1ext=0

Regards,

Vicky