From mboxrd@z Thu Jan  1 00:00:00 1970
From: Radames <radames42@freenet.de>
Subject: Re: cow versus data erasure
Date: Sun, 15 May 2011 10:20:18 +0000 (UTC)
Message-ID: <loom.20110515T121909-434@post.gmane.org>
References: <72d360c3a60a791182b5901cca382570@email.freenet.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
To: linux-btrfs@vger.kernel.org
Return-path: <linux-btrfs-owner@vger.kernel.org>
List-ID: <linux-btrfs.vger.kernel.org>

A method to overwrite all unused block may be another alternative.

<radames42 <at> freenet.de> writes:
> since btrfs uses cow I wonder how I can erase confidential data.
> 
> Alternatives are:
> - using encfs to save confidential data
> - using luks to encrypt the whole disk/partition
> other suggestions?

Kind regards,
Radames