YADIS
From Bandit-project.org
YADIS
Given an identity URL and no other information, how do we know what protocol needs to be used to authenticate that a user? YADIS is a service discovery system allowing relying parties (aka identity consumers or membersites) to determine automatically, without end-user intervention, the most appropriate protocol to use.
And not only authentication services, but any services available using that URL.
There are several projects concurrently working towards decentralised identity or single sign-on. Many of these use URLs as identifiers. !YADIS was initiated by LID and OpenID.
After the YADIS session at the October 2005 Internet Identity Workshop, the XRI folks working on i-names joined the effort as well. YADIS is applicable to any URL-based identity system, such as SXIPor mIDm, and by no means is tied to OpenID, LID, or XRI. For more information, please take a look at the individual project sites and at the YADIS FAQ.
