Now dmcrypt initscript supports only gpg as keyfile encryption solution. This mode requires something like key='/full/path/to/homekey:steghide' in /etc/conf.d/dmcrypt I think that steghide mode will also be good for true paranoids. Reproducible: Always Steps to Reproduce:
feel free to post a patch to do this ... doubt it'll get done otherwise
I'll implement this mode in some time.
*** This bug has been marked as a duplicate of bug 357227 ***