encrypted filesystems with debian packages?

[Jörg Johannes <liste_joerg@gmx.de>]

Hello everybody

I just started to read the Linux Encryption HOWTO on
http://www.linuxsecurity.com/docs/HOWTO/Encryption-HOWTO/Encryption-HOWTO.html
and I wonder if I can use encryped filesystems with my sid installation. 
However, I did not find the crypto-patched mount program on the debian 
package page. Is this option already available in Debian or will I have 
to manually patch and compile mount? As it is one of the most basic 
programs needed for a running system I would prefer keeping it part of 
the debian packages management system.
Is there a "Debian way" of encrypting filesystems?

thanks
joerg