I think you might have missunderstood something, TKIP = Temporal Key Integrity Protocol = an encryption protocol and is supported.
But only with PSK (Pre-Shared Key) what you are looking for is probably EAP-TLS, EAP-TTLS or EAP-PEAP. This has yet to be implemented due to the fact that I don't have much time to finnish it, and haven't had so for a year now. The wireless needs a update and rewrite but someone that has enough time has to do it.