EmberJS and digest auth

Here is my problem.

I have ready and working code for authentication with digest protocol. But it was written in AS3 (flash). Now I need implement the same (just client side, ofc) in EmberJS. I'm newcomer in this framework and looking for a best way to implement authentication (digest) in emberjs.

I tried to find some library/plugin for this, but found nothing. So I need some hints how to implement this. It must be a controller, or a route, or a separate pure js script? And how the whole auth thing must work with ember data?

Any example will be great!