From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] FAQ 2.2 Scenario (1) - clarification concerning "encrypted root"
Date: Sat, 20 Jun 2020 11:46:02 +0200 [thread overview]
Message-ID: <20200620094602.GA16098@tansi.org> (raw)
In-Reply-To: <8b38a6cf-3b39-9c08-2b0f-d3a3a22f1352@gmx.de>
On Sat, Jun 20, 2020 at 11:07:32 CEST, d.eltzner@gmx.de wrote:
> Thanks a lot for the clarification!
>
> On 20.06.20 08:10, Arno Wagner wrote:
> > I have a scenario: Put the initrd on USB-stick, remove it after
> > boot and secure the USB-stick physically (safe) when not in use.
> > I actually did that set-up for somebody. This is not perfect either,
> > but makes attacks that rely on manipulating the disk directly a lot
> > harder.
> You mean because the initrd is somewhat safe from manipulation in this
> scenario? Wouldn't you have to do the same for the kernel then?
Yes. The kernel also goes on that stick. Grub does too, if it is
used for booting.
> > But what do you use to unlock it? Something needs to run
> > cryptsetup for that unlocking action.
>
> The Arch way seems to be to do this via the initrd which in a "default"
> setup resides on a dedicated /boot. I figure that might be good enough
> for me then.
Very likely.
Regards,
Arno
>
> Best Wishes
>
>
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> dm-crypt mailing list
> dm-crypt@saout.de
> https://www.saout.de/mailman/listinfo/dm-crypt
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
----
A good decision is based on knowledge and not on numbers. -- Plato
If it's in the news, don't worry about it. The very definition of
"news" is "something that hardly ever happens." -- Bruce Schneier
next prev parent reply other threads:[~2020-06-20 9:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-19 20:45 [dm-crypt] FAQ 2.2 Scenario (1) - clarification concerning "encrypted root" d.eltzner
2020-06-20 6:10 ` Arno Wagner
2020-06-20 9:07 ` d.eltzner
2020-06-20 9:46 ` Arno Wagner [this message]
2020-06-20 17:26 ` JT Morée
2020-06-20 23:53 ` Arno Wagner
2020-06-21 20:20 ` moreejt
2020-06-22 7:33 ` Arno Wagner
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