F9 : password crack

[Luc MAIGNAN]

Hi,


I want to test the strength of the passwords of my F9 box. I wanted to 
use John The Ripper but it doesn't seem to support SHA-512 algorithm 
used by default by F9.

So :

* Do you know a patch I can apply to John so it can support SHA-512 ?
* What else tool can I use in place of John ?


BR