Add attributes to CAS session

[Adrien Futschik]

I am trying to add additionnal parameters to the CAS session.

I know that you can get the login by calling the  request.getRemoteUser() 
method. Where can I add additionnal information to the request when the user 
is beeing authenticated by CAS. 
I want to add the password (encrypted by a reversible algorithm), and other 
attributes such as group or role for example (it might also be location 
etc...).

Could someone please explain me how I should do to get this to work ? 

Am I the only one trying to do this ? 
Thanks for your answers.

Adrien