I have found this link useful in setting up encrypted backups.

http://security.uchicago.edu/tools/gpg-amanda/


-CM
----- Original Message -----
From: "Nicki Messerschmidt, Linksystem Muenchen GmbH"
<n.messerschmidt AT buero.link-m DOT de>
To: <amanda-users AT amanda DOT org>
Sent: Friday, March 07, 2003 8:13 AM
Subject: Re: Encrypted Files on Tape


> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Nicki Messerschmidt wrote:
> > is there any known method to encrypt the data, before writing it to
> > tape? I thought of something like "gpg -c" which does a symmetric
> > encryption, but if I do this then I won't be able to use amrecover
> > any more. Has anyone a good idea for this problem?
> One could use something like this:
> # Create empty file
> dd if=/dev/zero of=testfile bs=1024 count=1024
>
> # Compress it with zlib Routine (-z 9) and encrypt it with a password
> # from $PASSWORDFILE
> cat testfile | gpg --passphrase-fd 3 -z 9 --no-tty -c -
3<$PASSWORDFILE
> >testfile.gpg
>
> # Decompress and decrypt with a password from $PASSWORDFILE
> cat testfile.gpg | gpg --output - --passphrase-fd 3 --no-tty --decrypt
> - - 3<$PASSWORDFILE > test
>
> This works and gpg can handle STD(IN|OUT). But how do I implement this
> into amanda? And is there a possibility that I have to enter the
> password when I want to recover some files?
>
>
> Thanks in advance,
> Nicki
>
> - --
> Linksystem Muenchen GmbH                          info AT link-m DOT de
> Schloerstrasse 10                           http://www.link-m.de
> 80634 Muenchen                              Tel. 089 / 890 518-0
> We make the Net work.                       Fax 089 / 890 518-77
>
> -----BEGIN PGP SIGNATURE-----
> Version: PGPfreeware 6.5.3 for non-commercial use <http://www.pgp.com>
> Comment: Keys at: https://www.link-m.de/pgp
>
> iQA/AwUBPmiM3+s1nPm17iBDEQL7KQCeNbN7tdhMVfF3znHL9U5HT3qrd0EAoKQH
> lNDAUuKuy0QnS+bgsrBCcTsL
> =rZHz
> -----END PGP SIGNATURE-----
>
>