On Wed, Dec 06, 2017 at 09:31:40PM -0000, Christian Weisgerber wrote: > On 2017-12-06, ti...@openmailbox.org <ti...@openmailbox.org> wrote: > > > If TRIM would be implemented someday, one thing that would be > > neat would be that crypto and other softraid would propagate the > > TRIM. That would be a nice combination between wear level resiliency > > and disk data safety. > > That runs counter to popular thinking that an encrypted filesystem > should not reveal how much space has been allocated (and where). > For instance, the FAQ > https://www.openbsd.org/faq/faq14.html#softraid > explicitly recommends to overwrite the whole drive with random > data first to prevent this sort of analysis.
There's an important assumption, that people actually give a fuck how much data has been allocated. Personally, I wouldn't.
