Gentoo Archives: gentoo-user

From: Michael Hampicke <gentoo-user@××××.biz>
To: gentoo-user@l.g.o
Subject: Re: Aw: Re: [gentoo-user] dm-crypt + ext4 = where will the journal go?
Date: Tue, 04 Sep 2012 19:20:06
Message-Id: 50464CF5.6050309@hadt.biz
In Reply to: Re: Aw: Re: [gentoo-user] dm-crypt + ext4 = where will the journal go? by Hinnerk van Bruinehsen
1 > In theory grub2 is able to open a luks-encrypted volume though it
2 > seems to have some disadvantages: you'll need to enter the passphrase
3 > (or pass the keyfile) two times, because grub itself needs to decrypt
4 > the volume to get the later stages from the encrypted volume and
5 > afterwards the decryption in the bootprocess itself takes place.
6 >
7 > I can't give any real advice about it though, because I use an
8 > unencrypted boot partition. Depending on your needs it could be an
9 > increase of security, because you can stop an attacker from injecting
10 > malicious code into your kernel (or replace it completely).
11
12 I don't think so, I still can replace your bootloader and grab your
13 password. If you really think you might need something like this, I
14 suggest you put your kernel and bootloader on a USB stick and boot your
15 machine from that. When not in use keep the stick on your person.
16
17 That still does not protect you from physically tempering with your device.
18
19 Anyway, what about one those fancy tin foil hats to protect oneself
20 against the governments mind control rays :)

Replies

Subject Author
Re: Aw: Re: [gentoo-user] dm-crypt + ext4 = where will the journal go? Hinnerk van Bruinehsen <h.v.bruinehsen@×××××××××.de>