Agenda: XDI TC Telecon Friday 09:00 - 10:30AM PT 2013-10-18

XDI TC Agenda

Following is the agenda for the unofficial telecon of the XDI TC at:

Date:  Friday, 18 October 2013 USA
Time:  09:00AM - 10:30AM Pacific Time (16:00-17:30 UTC)

THE LINK TO THIS AGENDA AND LIVE MEETING MINUTES IS:

https://docs.google.com/document/d/1t5Mx0ITqJdLwo8wM5GD9lcqehgbgnrhk-k2sERwc7J0/edit

THE WEBEX INSTRUCTIONS FOR THIS MEETING ARE:

1. Go to https://neustar.webex.com/neustar/j.php?ED=203186612&UID=1364257662&PW=NN2Y2NzAxZTVj&RT=MiMxMQ%3D%3D 

2. If requested, enter your name and email address. 

3. If a password is required, enter the meeting password: 5474 

4. Click "Join". 

5. Follow the instructions that appear on your screen. 

To view in other time zones or languages, please click the link: 

https://neustar.webex.com/neustar/j.php?ED=203186612&UID=1364257662&PW=NN2Y2NzAxZTVj&ORT=MiMxMQ%3D%3D 

AGENDA
NEWS & UPDATES
XDI at IIW #17

Drummond will report on planned sessions next week at Internet Identity Workshop in Mountain View.

PRESENTATIONS/DISCUSSIONS
Progress on Working Drafts

Report on progress on XDI Core and XDI Messaging.

XDI Message Typing

Drummond added the Message Type statement to the XDI message pattern block on:

https://wiki.oasis-open.org/xdi/XdiMessagePatterns

Link Contract Pattern Revision Proposal

Drummond, Markus, and Animesh will report on a proposal revision to the standard link contract pattern that arose from of their implementation work:

	https://wiki.oasis-open.org/xdi/LinkContractPattern

The “Unauthorized $ref Problem”

Last week we concluded with this proposed solution to the “unauthorized $ref problem”:

If a message requests a $set operation on an equivalence relation ($is, $ref, or $rep) that crosses XDI authority graphs, the requesting party MUST be authorized by a link contract permitting this operation on the target graph just like any other authorized XDI operation.

We took the general action item to consider precisely how this rule will be implemented and discuss it on this week’s call.

Drummond makes the following proposal:

A link contract with $all permission includes all equivalence relation permissions.

Otherwise, the following permissions must be explicitly declared:

$set{$is}

$set{$ref}

$set{$rep}

The “Unbounded $set Problem”

Drummond proposes to solve this problem exactly the same way as above except the operation that must be permitted is $set($do}.

DECISION POINTS FOR THIS CALL
Dictionary Syntax

After our syntax simplication last spring, all XDI context functions used exclusively bracket syntax EXCEPT dictionary definitions.

(=markus)		<== root

[+passport]	<== collection

<+tel>		<== attribute

{foo}			<== variable

$(+passport)	<== definition

It would be cleaner and easier if there was also a uniform bracket syntax for definitions. One option would be to use double brackets:

[[+passport]]	<== definition

Markus suggested another option of using pipes:

|+passport|	<== definition

However Drummond proposes a different solution, which is to solve the problem by defining a single standard dictionary context node identified by the 

++passport			<== generic entity definition

+<+tel>			<== generic attribute definition

+=person			<== personal definition namespace (mutable)

+[=]!1234			<== personal definition namespace (immutable)

+@legal			<== legal definition namespace (mutable)

+[@]!1234			<== legal definition namespace (immutable)

DECISION POINT QUEUE REVIEW

The decision queue stack is shown on the following three auto-generated Category pages:

   https://wiki.oasis-open.org/xdi/CategoryLastCall

   https://wiki.oasis-open.org/xdi/CategoryCurrent

   https://wiki.oasis-open.org/xdi/CategoryHighPriority

See also this list of proposals that need to be developed:

   https://wiki.oasis-open.org/xdi/XdiPendingIssues

NEXT CALL

The next call is next week at the regular time.