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Subject: RE: [saml-dev] InterOp Scenario Extensions draft-01

Title: RE: [saml-dev] InterOp Scenario Extensions draft-01
Is there closure on the proposed scenario? I am not sure
I follow exactly what is being proposed here. A re-spin would
be helpful, I could then add it to the official demo. doc.
- prateek
-----Original Message-----
From: Andy Fetterer [mailto:afetterer@crosslogix.com]
Sent: Thursday, May 09, 2002 12:56 PM
To: 'Bhavna Bhatnagar'; saml-dev@lists.oasis-open.org; Andy Fetterer
Subject: RE: [saml-dev] InterOp Scenario Extensions draft-01

Bhavna / Scott -

Thanks for reviewing the document and making suggestions.

In terms of how the attribute assertion is passed to the authorization authority, would the third proposal make the most sense?  I don't think that the expiration range would have to be unreasonably long. 

I intended for the attribute to be required as part of the authorization query (e.g. the receiver must be able to process it), but its use in determining the response to the query was not required.  My concern was that not all authorization authorities would be able to support external attributes but I agree that we the requirement I wrote can be strengthened. 

That being said, should we require that the attribute be used in evaluation or not pass the attribute as part of the query?  I would prefer to use the attribute since it presents a stronger demonstration of interoperability between systems but would like to hear from the sub-group working on the authorization queries.


-----Original Message-----
From: Bhavna Bhatnagar [mailto:bhavna.bhatnagar@sun.com]
Sent: Thursday, May 09, 2002 8:49 AM
To: saml-dev@lists.oasis-open.org; afetterer@crosslogix.com
Subject: Re: [saml-dev]

Thanks for writing this up. I have a few comments/suggestions embedded. Not sure
if all can access the doc, since I edited it in staroffice. Here is
the text I have embedded:
AS part of the original specification by prateek what comes as the SSO Assertion
during SSO has an authentication statement and the attribute statement holding
the MembershipLevel attribute. Since there is no separate attribute assertion
coming down as part of the SSO, one would have to either:
1.Make an attribute query to the AA, and on receving the attribute assertion,
use that as Evidence when making the proposed Authz query. ( this does not make
sense since the receiver of the SSO assertion already has the attribute
2. Create an attribute assertion from the attribute statement received as part
of the SSO Assertion and use that as Evidence. ( dont think this is SOAP binding
though, someone please confirm)
3.Use the same SSO Assertion as received during the SSO, which also holds the
attribute statement as the Evidence, but then this may have expired. We could
keep the expiration range to be long enough so that the assertion is alive for
the whole round trip demo.

If its upto vendor to use/not use the attribute assertion, what's  the point of
making it ?

We need to refine this part to choose one of the 3 options or any other
alternatives. I think option 3 is more viable.
Thoughts ?



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>Date: Wed, 08 May 2002 12:43:56 -0700
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>Subject: [saml-dev]
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Bhavna Bhatnagar                                Sun Microsystems Inc.           
Identity Management group        __o
Tel: 408-276-3591              _`\<,_  
                              (*)/ (*)

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