How to use hash in Jboss Seam (@UserPassword)

[guga.java]

I would like to register users of my application and the time of registration I want it generated a hash of the password. Upon login I need to get past the login password normal user.
How can I implement this in Seam using his resources?
Sorry my bad english

[cash1981]

I have written a blog post about how you can solve this without using the IdentityManager.

Hash UserPassword