linux-kernel - Re: arch_random

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Date:	Sun, 11 May 2014 20:45:24 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Stephan Mueller <smueller@...onox.de>
CC:	Theodore Ts'o <tytso@....edu>, LKML <linux-kernel@...r.kernel.org>,
	linux-crypto@...r.kernel.org
Subject: Re: arch_random_refill

On 05/11/2014 08:36 PM, Stephan Mueller wrote:
> 
> But in our current predicament, not everybody trusts a few potentially easily 
> manipulated gates that have no other purpose than produce white noise which 
> are developed by the biggest chip vendor in the US. Gates which have other 
> purposes may not be that easily manipulated.
>

Incidentally, I disagree with the "easily manipulated" bit.  Yes, I have
seen the paper which says that you can do it in such a way that it
doesn't show up on *visual* examination.  However, put an electrical
probe on it and it shows up immediately.

	-hpa


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