Re: [gentoo-user] Cryptfs

2008-04-01 Thread Neil Bothwick
On Tue, 1 Apr 2008 08:04:10 +0200, Dirk Heinrichs wrote: > > Not without the password. That filesystem uses a password, not a > > keyfile. > > You didn't tell this before. Now I finally got the whole picture. You're right. I thought I had but checking back I see I didn't actually mention that.

Re: [gentoo-user] Cryptfs

2008-03-31 Thread Dirk Heinrichs
Am Dienstag, 1. April 2008 schrieb ext Neil Bothwick: > On Mon, 31 Mar 2008 18:15:54 +0200, Dirk Heinrichs wrote: > > > That's right, because the keys aren't in /boot ;-) > > > > But they are somewhere. He who has cracked your box can simply look > > into /etc/conf.d/dmcrypt to find out where your

Re: [gentoo-user] Cryptfs

2008-03-31 Thread Neil Bothwick
On Mon, 31 Mar 2008 18:15:54 +0200, Dirk Heinrichs wrote: > > That's right, because the keys aren't in /boot ;-) > > But they are somewhere. He who has cracked your box can simply look into > /etc/conf.d/dmcrypt to find out where your keyfile is stored and mount > that fs if needed. Not withou

Re: [gentoo-user] Cryptfs

2008-03-31 Thread Dirk Heinrichs
Neil Bothwick schrieb: > On Mon, 31 Mar 2008 07:36:52 +0100, Dirk Heinrichs wrote: > >>> That still means your keys are readable all the time, >> By root only, chmod 400 is your friend. > > But still readable. >>> whereas mine >>> disappear long before the network comes up. >> So what? If so

Re: [gentoo-user] Cryptfs

2008-03-31 Thread Neil Bothwick
On Mon, 31 Mar 2008 07:36:52 +0100, Dirk Heinrichs wrote: > > That still means your keys are readable all the time, > > By root only, chmod 400 is your friend. But still readable. > > > whereas mine > > disappear long before the network comes up. > > So what? If somebody cracks into your

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Dirk Heinrichs
Am Sonntag, 30. März 2008 schrieb ext Neil Bothwick: > On Sun, 30 Mar 2008 18:50:59 +0200, Dirk Heinrichs wrote: > > I protect the root fs with a passphrase and all other volumes with a > > keyfile stored in this fs. No need to mount anything (however, I _do_ > > need an initramfs because of this).

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Neil Bothwick
On Sun, 30 Mar 2008 18:50:59 +0200, Dirk Heinrichs wrote: > > I use a variant of this, where keys are stored on a dedicated > > partition. The pre_mount and post_mount (which unmounts the > > filesystem) ensure that the keys are only visible for as long as it > > takes to mount the other filesyste

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Dirk Heinrichs
Am Sonntag, 30. März 2008 schrieb Neil Bothwick: > On Sun, 30 Mar 2008 09:50:47 +0200, Dirk Heinrichs wrote: > > > However, the setup doesn't work. I'm not asked for the passphrase, the > > > mappings are not created. What did I forget? > > > > That the mappings are created all in one go before any

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Neil Bothwick
On Sun, 30 Mar 2008 09:50:47 +0200, Dirk Heinrichs wrote: > > However, the setup doesn't work. I'm not asked for the passphrase, the > > mappings are not created. What did I forget? > > That the mappings are created all in one go before anything is mounted, > so you can't put the keyfile for /v

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Dirk Heinrichs
Am Sonntag, 30. März 2008 schrieb Florian Philipp: > On Sun, 2008-03-30 at 09:50 +0200, Dirk Heinrichs wrote: > > Am Samstag, 29. März 2008 schrieb Florian Philipp: > > > My goal is to open a Luks-mapping for /var with a gpg-encrypted file > > > on /boot and then open a mapping for /var/tmp with a

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Florian Philipp
On Sun, 2008-03-30 at 09:50 +0200, Dirk Heinrichs wrote: > Am Samstag, 29. März 2008 schrieb Florian Philipp: > > > My goal is to open a Luks-mapping for /var with a gpg-encrypted file > > on /boot and then open a mapping for /var/tmp with a plaintext file > > on /var. > > See below. But while w

Re: [gentoo-user] Cryptfs

2008-03-30 Thread Dirk Heinrichs
Am Samstag, 29. März 2008 schrieb Florian Philipp: > My goal is to open a Luks-mapping for /var with a gpg-encrypted file > on /boot and then open a mapping for /var/tmp with a plaintext file > on /var. See below. But while we're at it, can anybody tell me what's the advantage of a gpg-encrypted

[gentoo-user] Cryptfs

2008-03-29 Thread Florian Philipp
Hi list! I think I have problems understanding the way /etc/conf.d/cryptfs works. My goal is to open a Luks-mapping for /var with a gpg-encrypted file on /boot and then open a mapping for /var/tmp with a plaintext file on /var. I thought it would work with the following settings: /etc/conf.d/cr