The documents that came with my Cyclone V GT FPGA Development Kit states that the one-year, nonrenewable development kit license for Quartus Prime software can be downloaded at www.altera.com/download/dnl-index.jsp or at www.altera.com/download/licensing/lic-index.html but those addresses just redirect me to a FPGA product homepage. So how do I get the license?
Please refer the Intel Self Service License Center : https://fpgasupport.intel.com/Licensing/license/index.html
Have a look on 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
For more details about Intel FPGA installation & licensing refer the links below,