I heard three different views on SSO wrt MediaWiki/WikiPedia so far:
1) The different Wikipedia sites (e.g. en.wikipedia.org and de.wikipedia.org) should require a user only to log on once. Once logged on the user should be known across those Wikipedia sites (and only those).
2) A MediaWiki installation (e.g. in an enterprise) would like the MediaWiki user management subsystem to participate in an SSO environment (e.g. an enterprise single-sign-on system). Auth_Plugin.php and various LDAP projects seem to have made some headway there.
3) A Wikipedia user (and any MediaWiki user) should be able to "bring their own" identity, which MediaWiki software should recognize. The advantage of this is that it includes the previous two items as special cases -- and because there's nothing special about Mediawiki with respect to logins: every website has that problem, and would like the problem to go away.
I'm interested in #3, specifically using URL-based personal digital identities (such as the URL of their blog). How would one practically go about doing this? [I'm new to how the wikipedia software projects typically work out]
Some background is here: http://cis-berkman.editme.com/ http://openid.net/ http://lid.netmesh.org/wiki/Main_Page
Thank you,
Johannes Ernst