Hi
I wish I could confirm that. But putting these parameters into the chilli.conf file alone did not create a WPA enabled wifi network on the router.
There must be something else.
Looking at the 'Features' tab of chillispot.info there are parameters called MS-MPPE-Send-Key and MS-MPPE-Recv-Key. That sounds more like it as WPA requires some encryption key to be shared between both parties. Now, this can be preshared (not realistic in a hotspot scenario), or one would imagine that a radius server can pass an encryption key back to the user once she has identified hereself as valid user on the captive portal. That is the functionality one would expect, but I have not seen a decent discription on how to implement this.
On the old chillispot.org forum there must have been entries on this topic. One can still find the pages in search engines, but of course the content is gone with the chillispot.org website.
Any ideas welcome...