linux-kernel - Re: [PATCH] random: add a config option to trust the CPU's hwrng

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Date:   Sat, 4 Aug 2018 20:28:59 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Pavel Machek <pavel@....cz>, Yann Droneaud <ydroneaud@...eya.com>,
        linux-crypto@...r.kernel.org,
        Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
        labbott@...hat.com
Subject: Re: [PATCH] random: add a config option to trust the CPU's hwrng

On Sat, Aug 04, 2018 at 08:25:14PM -0400, Theodore Y. Ts'o wrote:
> Depending on your hardware, no mouse motion might be necessary at all.
> On my laptop (a Dell XPS 13 model 9370) using an dm-crypt protected
> root disk, and running a Debian testing userspace, with a 4.18-rc6
> based kernel, the "CRNG is initialized" message is printed *before*
> the root file system is mounted.

Sorry, correction.  It's printed *before* the root file system is
remounted read/write.  (Which means before we can generate long-term
public keys and save them to the file system.)

						- Ted