* Stefan Weiss wrote [11.07.11 17:38]: Hi,
Use openssl/gnupg/gnutls.
I understand that you don't want to include deprecated packages. Unfortunately, none of the mentioned alternatives are very useful for simple symmetric stream encryption. I suppose I could set up an assymetric scheme with private and public keys, but that feels like overkill for a dd backup.
I beg to differ.
dd ... | gpg -c > /tmp/output works
Use gpg -d /tmp/output to decrypt the file.
or
dd ... | openssl aes-256-cbc -salt -out /tmp/output
Use openssl aes-256-cbc -d -in /tmp/output to decrypt the file.
I'm going to try and add TrueCrypt to my Grml USB stick myself. Up until now, I've been a purely passive Grml user... I've never changed any of the defaults, apart from --bootoptions. I guess I could just store the .deb somewhere and install it when I need it. If there's a simple way to make the installation "stick", could you point me to the relevant part of the docs?
There are multiple options, first use the persistent bootoption, see http://wiki.grml.org/doku.php?id=persistency
OTOH you can place debs in a specific folder/partition and they will be installed automatically. See http://grml.org/config/grml-autoconfig.1.html for the list of bootoptions.
Ulrich