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Subject: Minutes for 9 February 2012 TC Meeting:
Time: 13:00 EDT (GMT-0400) Tel: 513-241-0892 Access Code: 65998 Minutes for 9 February 2012 TC Meeting: I. Roll Call Voting Members Crystal Hayes The Boeing Company Richard Hill The Boeing Company Rich Levinson Oracle Hal Lockhart Oracle Bill Parducci Individual Erik Rissanen Axiomatics Remon Sinnema EMC John Tolbert The Boeing Company Paul Tyson Bell Helicopter Textron Inc. we have quorum Members Anthony Nadalin Microsoft Danny Thorpe Quest Software Observers Massimiliano Masi Tiani "Spirit" GmbH II. Approve (updated) Minutes of 26 January 2012 TC meeting http://lists.oasis-open.org/archives/xacml/201202/msg00002.html Hal: minutes approved, no objections III. Administrivia RuleML: LegalRule ML Paul: has been attending their mtgs; oasis tc; looking to find basis for collaboration: John: IPR issues? Paul: will be explaining xacml to them next wed Hal: Paul will look at coordinating for them to present to us. RSA InterOp Status update Hal: slides are out for review; booth planned, all things moving fwd ok. Test Assertions Model and Markup Language v1.0 Volunteers needed to review conformance tests: additional tests, revisit testing mechanisms, does spec need changes to facilitate testing? This was discussed at last mtg, this item is reminder to keep issue open for now. Hal: need volunteers IPC WD-07 uploaded Richard Hill has uploaded WD-07 http://lists.oasis-open.org/archives/xacml/201201/msg00031.html This is rev 1: http://www.oasis-open.org/committees/document.php?document_id=44958&wg_abbrev=xacml Hal: update uploaded John: have people reviewed it? can we elevate it? -> Hal: any additional comments to wd7; if no comments by tomorrow, publish wd-8, then move to cd at next call. REST Profile Danny provided JSON update: http://wiki.oasis-open.org/xacml/RestProfileRequirements Ray: needed more reqts are things complete now? Hal: it is up to people to ask if features are what is intended and based on responses move ahead accordingly Paul: need use cases and communities Hal: activities around new protocols Erik: orgs want to go away from xml; Hal: public is saying xml inefficient; tooling kits don't have xml schema capabilities, in general Hal: xml msg inside http not big reqt now Hal: if we said here is how to put schema in http Paul: media type Hal: PAP probably needs more discussion Erik: orgs have many different ways to deploy policies; something simple might make sense as starting point; Hal: where mimicking existing fcnality it's straight-forward, other areas should be handled separately Non-XML representations of XACML (EBNF + semantics): Ongoing review of contribution from Massimiliano Masi, et al: http://lists.oasis-open.org/archives/xacml/201201/msg00033.html http://lists.oasis-open.org/archives/xacml-users/201202/msg00000.html Hal: if people are interested discuss on list IV. Issues Open issues (recent months) collected for review: List of open XACML 3.0 issues for review from Erik: http://lists.oasis-open.org/archives/xacml/201202/msg00001.html Hal: see if we can close some of these: Issue 1: Values from bag function http://lists.oasis-open.org/archives/xacml/201110/msg00020.html Status: no concrete proposal available. Erik's personal comment: could be done like Paul sketches, or perhaps as higher order function which takes the function to apply as an argument. Hal: Paul was going to do proposal. Paul: had intended this to post-3.0 Bill: maybe JIRA Hal: we need "one way" Bill: wiki probably ok for small number of issues Erik: all closed issues are cleared out, only a few issues are there now. Bill: let's start numbering at 100; we have 12,36,62,66, etc. Issue 2: XACML media type http://lists.oasis-open.org/archives/xacml/201112/msg00015.html Status: we need to do some simple changes in the spec for IANA to move forward with this. Hal: simple thing is admin req to get new doc; Ray: brought up because of interface Hal: defer approval of doc until sure it is right Paul: having media types registered would be good, even w/o rest Hal: issue is note vs spec; Ray will start new doc; assume spec track Issue 3: New combining algorithm http://lists.oasis-open.org/archives/xacml/201112/msg00018.html Erik: when customers model policies; split up by sections, use Target; to match w internal resources need to compare subject with resource; can't do w Target because need hard value; Problem is deny is propagated up toward root, which causes issues; would be useful to have combining alg that would do the same thing as schema; Hal: optional profile wouldn't be an issue Rich: agrees if optional, but in core the semantics are navigating policyset nodes w policy/rule at leaf level, and complex condition only shows up at policy/rule leaf. To throw this complexity into target paradigm might be conceptually disruptive. Erik: finance community wants to use risk level, not a constant value; Paul: selling pt of xacml is can turn ordinary policies into xacml w/o a lot of trouble. Hal: instance-based access control; can have complex policy under the instance; Paul: worries about complexity of combining-alg Hal: would like to see use case; target vs condition goes back to 1.0. Hal: we've run out of time - will adjourn and pick up at next meeting. Issue 4: Context handler http://lists.oasis-open.org/archives/xacml/201112/msg00039.html Status: Proposal by Ray. Issue 5: higher order function generalization http://lists.oasis-open.org/archives/xacml/201201/msg00018.html Status: no change in functionality needed, but there seems to be consensus on renaming the functions in 3.0. Issue 6: Section 5.29 AttributeDesignator missing xs:element line http://lists.oasis-open.org/archives/xacml/201201/msg00021.html Status: obvious typo Issue 7: URI equality http://lists.oasis-open.org/archives/xacml-comment/201110/msg00010.html See also many meeting minutes posted since. Status: Proposal is to not change current functionality but add some explanatory text. There is a broader discussion going on about ditching URIs altogether but I assume that is not for the 3.0 timeline. Ongoing issues: Choice Element Ongoing discussion: current status appears to be that there is agreement that problem exists, but that it is probably better for the present to just provide an advisory, and update the schema the next time the schema is updated in maintenance release. Several comments 1/27->2/1: http://lists.oasis-open.org/archives/xacml/201202/msg00000.html
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