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cosign-discuss at umich.edu
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general discussion of cosign development and deployment
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Re: New Open Source Single Sign-On System: OpenID
On 03 Aug 2005, at 10:40, Mark Montague wrote:
On Tue, 2 Aug 2005, Kyle Mulka wrote:
Just thought I would make you all aware of another open source
single sign-on system in development. http://www.livejournal.com
currently uses it.
It is called OpenID and is explained here:
http://openid.net/
Actually, as the web site says, this is a decentralized identity
system, not a single-sign-on system. You do have to log in for
each host you visit, although you do so with just your URL instead
of a username/password pair. I haven't looked at the protocol
in depth, so there may be other really significant differeces too.
I agree that OpenID isn't an *alternative* to SSO's like CoSign or
PubCookie, I can easily imagine using a site's CoSign system as the
authentication mechanism to supply identity information to the sites
OpenID server. In this scenario, UMich might run an OpenID server,
and when visiting a site that uses OpenID (like livejournal), a UMich
person wouldn't need to create an additional account.
:wes
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