linux-kernel - Re: [PATCH] random: mix all saved registers into entropy pool

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Message-ID: <8761l0r6nc.fsf@tassilo.jf.intel.com>
Date:	Tue, 20 May 2014 05:12:07 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Jörn Engel <joern@...fs.org>
Cc:	Theodore Ts'o <tytso@....edu>, "H. Peter Anvin" <hpa@...or.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] random: mix all saved registers into entropy pool

Jörn Engel <joern@...fs.org> writes:
>
> An alternate high-resolution timer is the register content at the time
> of an interrupt. 

So if you interrupt a cryptographic function you may hash in parts
of the key?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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