[dev] Shibboleth/SSO integration

[Cassio Nishiguchi]

Hi,
I am working on developing an authentication module to integrate Horde with 
Shibboleth (http://shibboleth.internet2.edu), which should work basically 
like a single-sign-on system - by the time the user gets to Horde, he is 
already logged in.  Shibboleth can set the username on an HTTP header like 
REMOTE_USER, so I wrote a little Auth_shib class that supports transparent 
authentication and gets the username from the header.  However, my problem is 
having this work with IMP.  It seems that IMP requires a password to 
authenticate the user, which Shibboleth doesn't provide.  Is there any good 
way to get around that requirement?  Has anyone else deployed Horde/IMP 
behind an SSO system?  If so, how did you get the IMP login to work?
Any help is appreciated,

Cassio

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