I have my Wordpress install and MediaWiki sharing the same login information. Unfortunately, users need to log into both separately, but at least they use the same credentials.
What I would like to do is cause a successful login on the Wordpress blog to also cause a login for MediaWiki (ideally both directions). There are two ways this could happen:
Since the usernames are shared it seems like the latter should be pretty easy to do. Any tips would be great.
They both support OpenId now.
There are probably other options for using OpenId, but I think that is the best solution available.