Archive for October, 2010

UMA validator bounty program announced

Are you a software developer or tester? You might be interested in the new $4000 bounty program just announced by the Kantara Initiative for:

Develop[ing] material that assists in validating the compliance of implemented authorization manager, host, requester, and authorizing user/user agent endpoints to the UMA draft specifications (and their referenced external specifications).

The first deadline, to express submission interest, is November 1 — which happens to be the day we’re hosting a F2F meeting just ahead of IIW.

You can keep an eye on the status of the program at its dedicated UMA wiki page.

UMA meeting co-located with IIW and other news

Thanks to Phil and Kaliya and the gang, I’m happy to say we’re holding an UMA face-to-face meeting at the Computer History Museum on the Monday just prior to IIW XI (pronounced “yewksie”?).

This follows close on the heels of a face-to-face in Paris at the Kantara conference, so I hope we’ll be able to crank through a lot of work in the next few weeks. What work, you ask? We’re shooting for draft completion of some key items in the upper box shown here (click to get to a full-size site-mapped version on our Working Drafts page):

I’ve already gotten several requests for more info about the IIW meeting. These will be working meetings, not public transfer-of-information workshops, and we always welcome new participation. You can become a participant (voting/frequently attending or non-voting/attend at will, totally up to you) by filling out this form. I’ve put up some very preliminary agendas (Paris, Mtn View); they tend to be responsive to work done in weeks prior, so check back.

(UPDATE: There’s no formal registration process for the IIW meeting as long as you’re already signed up as an UMA participant; just send me an RSVP. Contact info is under my Welcome section in the right sidebar.)


Did you know our Newcastle University UMAnitarians have begun open-sourcing their Java implementation? The first big piece from the SMART Project covers UMA-friendly OAuth 2.0 and has the lovely name leeloo. They promise more to come soon, and I bet we’ll see some swank demos at IIW. Check it out!

Aiming for data usage control

Earlier this week, W3C held a workshop on privacy and data usage control. Among the submitted position papers are quite a few interesting thoughts, and though I couldn’t attend the workshop, it will be good to see the eventual report from it.

I did manage to submit a paper that explores the contributions of User-Managed Access (UMA) to letting people control the usage of their personal data. It was a chance to capture an important part of the philosophy we bring to our work, and the challenges that remain. From the paper’s introduction:

…UMA allows a user to make demands of the requesting side in order to test their suitability for receiving authorization. These demands can include requests for information (such as “Who are you?” or “Are you over 18?”) and promises (such as “Do you agree to these non-disclosure terms?” or “Can you confirm that your privacy and data portability policies match my requirements?”).

The implications of these demands quickly go beyond cryptography and web protocols and into the realm of agreements and liability. UMA values end-user convenience, development simplicity, and web-wide adoption, and therefore it eschews such techniques as DRM. Instead, it puts a premium on user visibility into and control over access criteria and the authorization lifecycle. UMA also seeks at least a minimum level of enforceability of authorization agreements, in order to make the act of granting resource access truly informed, uncoerced, and meaningful. Granting access to data is then no longer a matter of mere passive consent to terms of use. Rather, it becomes a valuable offer of access on user-specified terms, more fully empowering ordinary web users to act as peers in a network that enables selective sharing.

Some of the challenges are technical, some legal, and some related to business incentives. The paper approaches the discussion with what I hope is a sense of realism, along with some justified optimism about near-term possibilities.

(Speaking of which, I like the realism pervading Ben Laurie’s recent criticism of the EFF’s suggested bill of privacy rights for social network users. He cautions them to stay away from implicitly mandating mechanisms like DRM — and, in focusing on broader aims, to be careful what they wish for.)

If you’re so inclined, I hope you’ll check out the paper and the other workshop inputs and outputs.