[OpenID] Is openid a sso ?

[Denis Fingonnet]

Hello all,

Excuse my english by advance.

I've read plenty of things about OpenId. I even tried to implement it in a
way I'll describe later on this mail.
I read that it is a decentralised sso for the web.
But I can't get this work or I don't have the same meaning for sso.

http://en.wikipedia.org/wiki/Single_sign-on :*
*Single sign-on (SSO) is a method of access control that enables a user to
authenticate once and gain access to the resources of multiple software
systems.

In my opinion, that means I have to log once to my openid provider to be
recognized on every openid enabled websites I'm registered.
But I can't get this to work.

Here is a description of what I've done :

I've installed an openid server (
http://www.openidenabled.com/php-standalone-openid-server) which works
perfectly.
I've installed two openid enabled websites (The first one is a CMS SPIP with
an openid plugin, the other is an application where I quickly implement a
consumer (not sure of my work, it's only a draft)).
I've created a user which trusts the two previous websites.

But when I log to my openid server, I'm not logged to any of the others.

So my question is :
Is openid a sso as I mean it ? If yes, I assume that my problem comes from
the implementation of the consumers parts.

Thanks by advance for your answers?

-- 
Denis Fingonnet
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