>
>> - NAS sends new Access-Request (somehow) tied to the original session
>> - this Access-Request contains
>>    Service-Type = Authorize Only
>>    State from original Access-Accept
>> - server replies with Access-Challenge / Access-Accept
>> - packets contain SAML data
>> - if the reply is an Access-Challenge, the NAS sends
>>    another Access-Request
>
>Yeah, we had in mind something very similar.

Likewise. I was going to propose something very similar to this for the
Abfab Assertion Request Profile, so that the RP is able to obtain an
assertion from an IdP at some point after authentication.

I'd like to use the same mechanism for both post hoc assertion request and
delivery of jumbo assertions (where delivery of a jumbo authentication
assertion is essentially the case where the assertion is not necessarily
solicited and happens immediately after authentication.

So I think we should try to decouple the RADIUS/EAP authentication
roundtrips from the RADIUS/SAML assertion roundtrips, modulo some
mechanism to tie these together.

There's another wrinkle that hasn't been discussed, which is that the SAML
Request may also be larger than 4K. So we really need to deal with jumbo
messages in both directions, which makes this even more interesting
although I think that Alejandro's proposal works in this case.

Josh.



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