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Date: Tue, 14 May 2013 21:41:52 +0200
From: Zenny <garbytrash@...il.com>
To: owl-users@...ts.openwall.com
Subject: Re: Owl encrypted / and tcplay
Thanks to Alexancer and Alexey both for very useful info.
@Alexey: I need to encrypt /. I am quite impressed by full disk
encryption, recognized by bootloader of OpenBSD 5.3. Impressive work.
If Owl can implement somehting similar it would be wonderful. (ref:
http://ryanak.ca/planet-ubuntu/2013/03/26/Setting-up-full-disk-encryption-in-OpenBSD-5.3.html).
Actually full disk encryption is a basic requirement for me. I also
thought of installing Owl as a qemu instance of OpenBSD, but gave up
the idea of running vitualization on top of another virtualization i.e
openvz on top of qemu!
On 5/14/13, gremlin@...mlin.ru <gremlin@...mlin.ru> wrote:
> On 04-May-2013 15:45:51 +0200, Zenny wrote:
>
> > Is there a way to encrypt Owl / with aes-xts-plain64 which can be
> > remotely authenticated remotely for decryption (like using dropbear
> > in initrd or mandos server-client mechanism in debian using hooks)?
>
> No. And normally you don't need that.
>
> When dealing with sensitive data, personally I prefer leaving bare
> system at unencrypted / and /var, while keeping all the sensitive
> data inside VZ containers stored at encrypted /home; when I reboot
> the server, I wait for it to start and then issue the command like:
>
> gpg < vzhost.key | ssh root@...ost.somewhere \
> "xxd -p -r | losetup -p 0 -e twofish -k 256 -H sha512 /dev/loop0 /dev/md2"
>
> (hint: `head -c128 /dev/random | xxd -p -c32 | gpg -ea > vzhost.key`
> will provide you with secure encryption key).
>
> After that, I go to vzhost.somewhere and issue two obvious commands:
>
> mount /dev/loop0
> service vz start
>
> Please see the http://openwall.info/wiki/Owl/secure-storage page for
> instructions of how to set up secure data storage.
>
> > Also interested in tcplay, but would be nice to know to securely
> > integrated with Owl 3.0.
>
> It uses devmapper, and thus is inacceptable due to its' ability to bury
> all the data at once.
>
>
> --
> Alexey V. Vissarionov aka Gremlin from Kremlin <gremlin ПРИ gremlin ТЧК ru>
> GPG key ID: 0xEF3B1FA8, keyserver: hkp://subkeys.pgp.net
> GPG key fingerprint: 8832 FE9F A791 F796 8AC9 6E4E 909D AC45 EF3B 1FA8
>
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