bugtraq - Re: [ADVISORY] Timing Attack on OpenSSL

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Message-ID: <3E75F295.2000309@columbia.edu>
Date: Mon, 17 Mar 2003 08:06:45 -0800
From: Jeffrey Altman <jaltman@...umbia.edu>
To: openssl-users@...nssl.org
Cc: Bugtraq <BUGTRAQ@...URITYFOCUS.COM>,
	full-disclosure@...ts.netsys.com,
	OpenSSL Announce <openssl-announce@...nssl.org>,
	OpenSSL Dev <openssl-dev@...nssl.org>
Subject: Re: [ADVISORY] Timing Attack on OpenSSL


This is a different vulnerability.  The one you patched two weeks ago 
was caused by a failure to decrypt messages when the MAC comparison 
failed.  This vulnerability is a timing attack against the RSA algorithms.

The Slashdot discussion is here:

  http://slashdot.org/article.pl?sid=03/03/14/0012214&mode=thread&tid=172

The paper is here:

  http://crypto.stanford.edu/~dabo/abstracts/ssl-timing.html



Christopher Fowler wrote:

>Is this a new advisory.  I've patched for a previous timing attack 2
>weeks ago.
>

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