This is an interesting area. I know that there are centralised services for it, (such as the flagship Microsoft Passport project), but I haven't come across...

There are people working with Jabber to make it P2P which really isn't a big project technically. There's been a lot of work on the server (which needs to be ...

Rikard, If I'm right, this isn't the sort of decentralisation that Narayan was after. Certainly you can set up lots of (individually) centralised servers from ...

I think Jabber IS moving that way. However this is just something I remember reading about in the Jabber forums. Adam Theo is the guy to ask. He also works to ...

What's possible depends on the constraints. Do you assume there is any client software besides a Web browser? How "single" is single sign on? Does the user...

... RIGHT. I could be wrong but in my view, there is no such thing as single sign-on that doesn't involve delegating some authentication power to an outside...

... You are wrong. :-) If we had funding (and thus full-time programmers), the company I work for that doesn't make any money would already have a product...

Back in July 2001 (when I was last on the auth@... list) they wanted to write client software that would store sign on information on client machines...