PMP450i RADIUS for Management Authentication

Products PMP
2

I found a guide that details how to configure RADIUS User authentication for management in an NPS server:
http://community.cambiumnetworks.com/t5/PMP-Beta/PMP-13-4-Microsoft-RADIUS-Support-Feature-Brief/m-p/40460#M277

This guide includes exporting a certificate from the AP/SM and importing it to the NPS server. I'm hoping to just accomplish this by Shared Secret.

Also, the guide states that the user's password must be stored in "reversible encryption." Surely that's still not the case today, is it?


Can anyone bridge these gaps for me?

Thanks,

Brian