[dm-crypt] Does safe remove has a point on an encrypted drive?

Claudio Moretti flyingstar16 at gmail.com
Sat Sep 22 21:05:27 CEST 2012

> I meant if I am on full disk encryption if it's worth the extra CPU
> clocks to do a safe erase of certain files, given the data is already
> random looking from the outside. It wasn't about the whole drive.
The point is exactly that: your data looks random from the outside, but not
from the inside. If an attacker gets access to your running computer or
discovers your password, dm-crypt cannot protect you, because the attacker
has access to your unencrypted hard drive.
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