Re: ext3 on encrypted device mapper

From: Andreas Dilger
Date: Thu Dec 02 2004 - 14:36:00 EST


On Dec 02, 2004 19:17 +0100, Anonymous via the Cypherpunks Tonga Remailer wrote:
> Filesystem is encrypted using dmcrypt, the encryption framework working on top of the device mapper.
>
> I deleted a file and immediatelly i attempted to recover it using debugfs.
>
> Linux aaa 2.6.10-rc2 #1 Wed Dec 1 09:52:37 CET 2004 i686 GNU/Linux
>
> aaa:~# df -k .
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/mapper/rootfs 8676440 5278584 2957108 65% /
>
> aaa:~# debugfs /dev/mapper/rootfs
> debugfs 1.35 (28-Feb-2004)
> debugfs: lsdel

Ext3 doesn't allow file undeleting (though the data on disk is not
overwritten in any way, just the metadata). You should be happy, this
is more secure (seems you are worried about that).

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://members.shaw.ca/adilger/ http://members.shaw.ca/golinux/

Attachment: pgp00000.pgp
Description: PGP signature