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Subject: Re: [xacml] Draft response to SSTC on XACML Attribute definition. Forwarded message from Seth Proctor.




From: Anne Anderson <Anne.Anderson@Sun.com>
To: XACML TC <xacml@lists.oasis-open.org>
Date: Thu, 25 Sep 2003 11:30:07 -0400






Seth is right.  I'll modify the draft response to reflect the
fact that our AttributeDesignator has no way of specifying
IssueInstant at all.  Somehow I had remembered that you could
specify an exact match, but I was wrong.

-Anne

------- start of forwarded message -------
From: Seth Proctor <seth.proctor@sun.com>
To: Anne Anderson <Anne.Anderson@sun.com>
Subject: Re: [xacml] Draft response to SSTC on XACML Attribute definition
Date: Thu, 25 Sep 2003 11:19:19 -0400


Thanks for writing this up...it's excellent! One little nit:

>    The XACML TC includes IssueInstant, but has no way of using
>    this value in a policy other than to require an exact match.
>    For example, there is no way in an XACML policy to say that a
>    particular Attribute is acceptable so long as it was issued
>    after a given dateTime.  This reduces the value of
>    IssueInstant considerably, but this is an XACML issue and not
>    a SAML problem.

There is no way to reference this from a Designator, but of course a Selector
or an XPath function can use this value, so it's not entirely useless. I
could certainly write a Selector that let me compare the issueInstant to a
dateTime, though this is unwieldy at best :)


seth
------- end of forwarded message -------

-- 
Anne H. Anderson             Email: Anne.Anderson@Sun.COM
Sun Microsystems Laboratories
1 Network Drive,UBUR02-311     Tel: 781/442-0928
Burlington, MA 01803-0902 USA  Fax: 781/442-1692














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