Yes, RFID Discover tool (full version) is security file, need to sign an NDA with NXP and then have permission to download. Please establish an NDA with NXP by going to https://www.nxp.com/support/support:SUPPORTHOME and select "Request an NDA"
If you'll get an NDA, then please send e-mail to [email protected] and apply for SW186654 accessing permission and then you can see the file and download it on https://www.docstore.nxp.com/