Mauro - As far as I can see there are two principal approaches: 1. An authoritative attribute provider is determined by policy, i.e. an authority within the group of operators defines who is authoritative. This will - most likely - have to be decided and configured upfront. 2. The relying party makes their own determination, based on its needs and policies. In this scenario, the RP has more flexibility to determine authoritativeness at runtime. So, in general, the problem is really a managerial problem, and not a technical one. However, meta data may help in making decisions at runtime. Best, Gerald On Jan 6, 2012, at 18:50 , Colin Wallis wrote:
Hi Mauro
It is a good question and one which along with many others, the Kantara Attribute Management Discussion Group has within its scope.
The general feeling is that 'responsibility' as you mention below, will be published/consumed via meta data.
But we need to determine what that actual attribute will be - whether we create one or re-use one (say from a SAML 2.0 profile).
Cheers Colin
Date: Tue, 3 Jan 2012 19:43:50 +0100 From: s172556@studenti.polito.it To: community@kantarainitiative.org Subject: [Kantara - Community] Attributes from multiple APs
Hello everyone,
I am starting a thesis work on attributes management and aggregation in a federated identity environment and I am trying to figure out how to address attributes resolution in a scenario where there are multiple Attribute Providers. The main issue is: how does a relying party know which AP is responsible for a given attribute? As I am doing a research, I would like to know if in Kantara this problem has been faced and, if so, how you have solved it.
Thank you for your time and consideration.
Best Regards,
Mauro
-- Mauro L Polytechnic University of Turin _______________________________________________ Community mailing list Community@kantarainitiative.org http://kantarainitiative.org/mailman/listinfo/community
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