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To: linux-kernel@vger.kernel.org
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: Problem with random.c and PPC
Date: 15 Aug 2002 18:50:32 -0700
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Followup to:  <20020815210449.GA26993@opus.bloom.county>
By author:    Tom Rini <trini@kernel.crashing.org>
In newsgroup: linux.dev.kernel
> 
> Ah, thanks.  In that case, no.  It doesn't look like the input-layer USB
> keyboards contribute to entropy (but mice do), and I don't think the ADB
> ones do.  I'll take a crack at adding this to keyboards monday maybe.
> 

Be careful... USB devices are *always* going to speak at the same
place in the USB cycle... I believe that is 1 ms.  Thus,
submillisecond resolution is *not* random.

	-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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