Are folks opposed to the OIDF or OIX running the domain?  Don has
suggested that in the past.  If not them, any other suggestions?

Cheers,

Brian
___________

Brian Kissel
CEO - JanRain, Inc.
[email protected]
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519 SW 3rd Ave. Suite 600  Portland, OR 97204

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-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Allen Tom
Sent: Tuesday, June 08, 2010 11:24 AM
To: Eran Hammer-Lahav; John Panzer
Cc: [email protected]
Subject: Re: XAuth critiques

I think that nearly everyone agrees that many of the UX, privacy, and
security issues that we have today with internet identity could
potentially
be solved using new identity features baked into browsers.

However, while we wait for users to have browsers that support these
features, is there something that we can deploy today? Xauth could be an
interim solution until we do have support in the browser. It is
conceivable
that browsers could reuse the same Xauth JS interface.

Again - I don't see why we can't work on both server based and browser
based
solutions in parallel.

Regarding the privacy issues of having a centralized domain - the
overwhelming majority of sites already deploy centralized JS that already
correlates users across domains - so in this respect, Xauth is really
nothing new. Ad networks, website analytics, and "Like" buttons are just a
few examples.

As far as I know, all of the serious proposals for using Xauth is just to
store the user's OP preference - a simple boolean flag that indicates that
the user behind the browser happens to be concurrently logged into a
particular IdP. This is already "public" information that some IdPs
already
support - for instance both Facebook and Google already support this
today:

Facebook Connect Status:
http://wiki.developers.facebook.com/index.php/Detecting_Connect_Status

Google's openid.ui.mode=x-has-session:
http://code.google.com/apis/accounts/docs/OpenID.html#Parameters

The only new thing in Xauth is that RPs can just query a single API
(potentially loaded entirely from the browser's cache) to check all IdPs
where the user could be logged into. This is information that RPs can
already get by directly querying each IdP. The only difference is that
Xauth
can reduce the network overhead of checking the login status.

It is true that there are serious challenges with having a centralized
domain - who runs this domain? How is it governed? Where does the data go?
These are real issues - however they're not really technical issues, and I
think they can be solved, if a "trusted third party" can run it. I still
have yet to see a serious proposal to actually run this domain though - so
perhaps this is not realistic.


Allen



On 6/7/10 10:17 PM, "Eran Hammer-Lahav" <[email protected]> wrote:

>
> If Google, Yahoo, Microsoft, and the rest of the companies supporting
the
> OpenID effort deployed the server-side half of this proposal, and spent
a
> little money on developing plug-ins for all the major browsers (with
Google
> and Microsoft able to also include it in the next release of their
browser),
> it will create the tipping point in getting some form of identity
selector in
> the browser.

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