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

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Message-ID: <CAH8yC8mG8PCd6zLK=oMWdvcAryvY42g1TprUrNg7ZGVyBenKjw@mail.gmail.com>
Date:   Wed, 18 Jul 2018 02:46:55 -0400
From:   Jeffrey Walton <noloader@...il.com>
To:     "Theodore Ts'o" <tytso@....edu>
Cc:     Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
        Laura Abbott <labbott@...hat.com>
Subject: Re: [PATCH] random: add a config option to trust the CPU's hwrng

On Tue, Jul 17, 2018 at 9:43 PM, Theodore Ts'o <tytso@....edu> wrote:
> This gives the user building their own kernel (or a Linux
> distribution) the option of deciding whether or not to trust the CPU's
> hardware random number generator (e.g., RDRAND for x86 CPU's) as being
> correctly implemented and not having a back door introduced (perhaps
> courtesy of a Nation State's law enforcement or intelligence
> agencies).

+1.

Allowing the user to set local policy is a good idea. Thanks for that.