On Thu, May 25, 2017 at 10:16 AM, J. Roeleveld <jo...@antarean.org> wrote: > On May 25, 2017 1:04:07 PM GMT+02:00, Kai Krakow <hurikha...@gmail.com> wrote: >>Am Thu, 25 May 2017 08:34:10 +0200 >>schrieb "J. Roeleveld" <jo...@antarean.org>: >> >>> It is possible. I have it set up like that on my laptop. >>> Apart from a small /boot partition. The whole drive is encrypted. >>> Decryption keys are stored encrypted in the initramfs, which is >>> embedded in the kernel. >> >>And the kernel is on /boot which is unencrypted, so are your encryption >>keys. This is not much better, I guess... > > A file full of random characters is encrypted using GPG. > Unencrypted, this is passed to cryptsetup. > > The passphrase to decrypt the key needs to be entered upon boot. > How can this be improved? >
The need to enter a passphrase was the missing bit here. I thought you were literally just storing the key in the clear. As far as I can tell gpg symmetric encryption does salting and iterations by default, so you're probably fairly secure. I'm not sure if the defaults were always set up this way - if you set up that file a long time ago you might just want to check that, unless your passphrase is really complex. -- Rich
