Secure backup of encrypted partition

[Anonymous <nobody@paranoici.org>]

n Mon, 16 Jun 2003 11:32:50 +0200
Robert Jaworski <labs@robertjaworski.de> wrote:

> Hi,
> 
> this is a little bit off topic here, but maybe somebody can help me.
> 
> I have an encrypted drive and would like to make a backup of it. This
> backup should also be as secure as my data on disk. My simple question
> is: how to do this?
> 
> I would like to:
> - backup only the data, not the whole partition (save time and media)
> - be able to restore every single file or the whole partition
> - have same security like on the harddisk
> - backup to DVD+RW 
> 
> 
> Thank you very much for you help in advance
> Robert
> -

1) Tar your files:
tar -cpPWvf $ARCHIVE $DIR

2) Encrypt your files:
gpg -c --cipher-algo $GPG_CIPHER_ALGO_NAME $ARCHIVE

3) Wipe your tar archive from HDD:
wipe -qf $ARCHIVE

4) Copy $ARCHIVE.gpg to storage media.

You can use EncryptedVirtualFileSystem http://hysteria.sk/evfs
to avoid writing (and wiping) temporary archive to HDD and
economize free space.

P.S. May be kernelI.org developers combine some ideas from EVFS
and current kernelI to one project?

I can encrypt partition and swap and can't make encrypted temp
dir or tempFS to avoid writing variable length sensitive files to disk!


-
Linux-crypto:  cryptography in and on the Linux system
Archive:       http://mail.nl.linux.org/linux-crypto/