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From: daw@mozart.cs.berkeley.edu (David Wagner)
To: linux-kernel@vger.kernel.org
Subject: Re: SSE related security hole
Date: 21 Apr 2002 22:11:13 GMT	[thread overview]
Message-ID: <a9vde1$285$1@abraham.cs.berkeley.edu> (raw)
In-Reply-To: <20020418183639.20946.qmail@science.horizon.com> <Pine.LNX.3.95.1020418144215.30908A-100000@chaos.analogic.com>

Richard B. Johnson wrote:
>Well, if what's on the internal stack of the FPU can actually leak
>information, I think the notion of "leak" has expanded just a bit
>too much.

Note that some crypto implemenations use the FPU heavily to speed up
the encryption process.  Thus, if FPU data can leak, secret keys are
at risk.  I don't know about you, but that doesn't sound good to me.

  parent reply	other threads:[~2002-04-21 22:20 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-18 18:36 SSE related security hole linux
2002-04-18 18:53 ` Richard B. Johnson
2002-04-21 19:52   ` Pavel Machek
2002-04-21 22:11   ` David Wagner [this message]
2002-04-18 21:06 ` H. Peter Anvin
  -- strict thread matches above, loose matches on Subject: below --
2002-04-22 22:24 Saxena, Sunil
     [not found] <20020418183639.20946.qmail@science.horizon.com.suse.lists.linux.kernel>
     [not found] ` <a9ncgs$2s2$1@cesium.transmeta.com.suse.lists.linux.kernel>
2002-04-19 14:06   ` Andi Kleen
2002-04-19 18:00     ` Doug Ledford
2002-04-19 21:04       ` Andrea Arcangeli
2002-04-19 21:35         ` H. Peter Anvin
2002-04-19 21:42           ` Andi Kleen
2002-04-20  3:23             ` Andrea Arcangeli
2002-04-19 22:18         ` Jan Hubicka
     [not found] <200204182320.53095.nahshon@actcom.co.il>
2002-04-19 11:22 ` Alan Cox
2002-04-17 23:42 Doug Ledford
2002-04-18  5:26 ` Andrea Arcangeli
2002-04-18  9:10   ` Arjan van de Ven
2002-04-18 11:18   ` Alan Cox
2002-04-18 11:14     ` Andi Kleen
2002-04-18 11:53       ` Alan Cox
2002-04-18 11:46         ` Andi Kleen
2002-04-18 11:55         ` Andi Kleen
2002-04-18 13:44   ` Doug Ledford
2002-04-18 19:20     ` Pavel Machek
2002-04-18 19:32       ` Doug Ledford
2002-04-21 19:54         ` Pavel Machek
2002-04-18  8:22 ` Andi Kleen
2002-04-17 14:51 Jan Hubicka
2002-04-17 15:23 ` Jan Hubicka
2002-04-18 14:57   ` Denis Vlasenko

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