Slides from a seven minute OpenID in a nutshell presentation at the Being-Digital conference, presented on the 10th of June 2008.

1. URL-based identity with
Simon Willison / simonwillison.net
Being-Digital
10th June 2008

3. ?

4. ?
Windows
Live ID

5. Centralised SSO betrays
the principles of the Web

6. OpenID is a decentralised
mechanism for SSO

11. With OpenID 2.0, you just
have to specify your provider

15. OpenID lets you prove
that you own a given URL

17. Upcoming
last.fm

18. Common misconceptions
• OpenID complements your existing user
database; it doesn’t replace it
• Spammers have OpenIDs too! You still need
to take your own measures to verify the
morality of your users
• Having your eggs in one basket means you
can take extra steps to protect that basket

19. Hardware tokens