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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20140521203811.GB30084@logfs.org>
Date:	Wed, 21 May 2014 16:38:11 -0400
From:	Jörn Engel <joern@...fs.org>
To:	Andi Kleen <andi@...stfloor.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

On Wed, 21 May 2014 21:39:05 +0200, Andi Kleen wrote:
> 
> > I think leaking of private keys or similar information is not a
> > concern.  But please prove me wrong.  Better you now than someone else
> > later.
> 
> While I don't have a concrete exploit it seems seems dangerous to me. 
> The LibreSSL people just removed a similar behavior from OpenSSL.

Btw, if your concern were justified, that would also speak volumes
about the quality of our random generator - with or without my patch.
Either you are wrong or we have a real problem on our hands already.

Jörn

--
This above all: to thine own self be true.
-- Shakespeare
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/