In particular, the problems of EAP auth (e.g. multiple round-trips, general
fragility in federated uses) become highly toxic when applied to Realtime
applications such as XMPP and SIP. As we have learned, Digest auth (RFC
5090) has not been widely deployed, in part because of concern about the
additional latency added by a AAA exchange. For users of real-time
applications, additional latency is a basic, non-negotiable goal. If the
relatively modest number of exchanges implied by RFC 5090 were intolerable in
realtime applications, how can we expect EAP exchanges (which can involve
4-5 times the number of roundtrips of RFC 5090) to be deployed? The
answer unfortunately, is that there is no chance at all.
So in summary, I believe that some aspects of the problem statement make sense,
but that a solution has been chosen prematurely. The right way to move
forward in a situation like this is to begin with a problem statement, which
should include carefully validating the uses cases.
Alper> I agree.
Alper> Anyone who was around the ICOS BoF in IETF 62 would
remember that the community was convinced(!) that using EAP for anything other
than network access was a no-no. Now before we embark on marching in 180-degree
opposite direction, I’d say the community needs to be “unconvinced”
first. I’m not saying this is not doable, but something we need to go
through first.
Alper
> ----- Original Message -----
> From: "Romascanu, Dan (Dan)" <dromasca@avaya.com>
> To: <dime@ietf.org>; "radext mailing list"
<radiusext@ops.ietf.org>;
> <aaa-doctors@ietf.org>
> Sent: Wednesday, June 02, 2010 10:56 PM
> Subject: FEDAUTH BOF request
>
>
> Diameter and RADIUS experts should pay attention to the request to hold
> a Federated Authentication (FEDAUTH) BOF which will be discussed this
> morning by the IAB and the IESG.
>
> The Draft Charter is available at
> http://www.project-moonshot.org/bof/charter/, and more information about
> this BOF or other BOF requests can be examined at
> http://trac.tools.ietf.org/bof/trac/
>
> Dan
>
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>
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