RE: [xacml] Possible future XACML TC work

[Carlisle Adams <carlisle.adams@entrust.com>]

Title: RE: [xacml] Possible future XACML TC work

Hi Anne,

Thanks for putting this list together!

Can I add one other item for possible future work?

7. Exploration of whether and how XACML can be used to express privacy policies.

On first glance, this might seem out of scope for our charter, but I don't think it is.  If a corporate entity writes a policy saying "A requester can only see the pre-release quarterly report if the requester is an executive of the company", and a person writes a policy saying "A requester can only see my health record if the requester is a doctor", then these both seem like access control policies and they use similar syntax.  But the latter would generally be regarded as a privacy policy and the former wouldn't.  In practice, there may be little or no difference between a privacy policy and any other kind of access control policy, and so XACML might be an appropriate fit in the privacy world.  I think this is probably worth exploring a little bit to see if I'm way off base...

Carlisle.

-----Original Message-----
From: Anne Anderson [mailto:Anne.Anderson@Sun.com]
Sent: Wednesday, February 12, 2003 2:33 PM
To: XACML TC
Subject: [xacml] Possible future XACML TC work

Here is a list of suggestions for future XACML TC work.  I
believe all of this is within our charter.

1. XACML 1.0+: RFE's based on actual usage
   a) Fully specify hierarchical resources
   b) Define new combining algorithms for deterministic
      Obligations.
   c) ebXML: Allow references to Rules (as we now allow for
      policies and policy sets)
   d) Incorporate fixes for errata
2. Profiles and bindings
   a) SAML: revised AuthorizationDecisionStatement,
      AuthorizationDecisionQuery, Response to support XACML
      Request and Response Context [Anne and Hal working on this]
   b) XMLDSig: how to sign XACML policies, requests, responses
      [Anne working on this]
   c) LDAP:
      1) how to store and retrieve policies using LDAP
      2) how to store and retrieve attributes using LDAP [already
         defined?  Simon?]
   d) ebXML:
      1) how to store and retrieve policies using ebXML
      2) how to store and retrieve attributes using ebXML
   e) Transport protocols (in addition to SAML wrapper)
3. Additional Conformance Tests
4. XACML Extensions
   a) WS-Policy [Tim's proposal]
   b) Information about how/where to obtain policies and
      attributes; how to authenticate them (e.g. trust anchors)
5. XACML Primer [Hal and Konstantin working on this]
6. XACML Implementer's Guide

Anne
--
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