lofi(7D) compression support [PSARC/2007/569 FastTrack timeout 10/08/2007]

[Gary Winiger]

> > DJM-1 How does this interact with lofi crypto ?
> >
> > (http://opensolaris.org/os/community/arc/caselog/2007/001/)
> >
> > Which happens first crypto or compression (hint it needs to be compression 
> > otherwise it is waste of CPU resource) ?
> >
> > However if my understanding of how -C and -U work it seems that the 
> > compression would be happening after encryption because by design it isn't on 
> > the fly but actually a distinct admin action (which for building LiveCD 
> > images is fine).
> 
> I need to think about this aspect some more, I'll come
> back to this.

	Presumably compress first encrypt second.  Decrypt first uncompress
	second.  Compressing noise doesn't seem like a good plan.

Gary..