From owner-freebsd-security@FreeBSD.ORG Mon Dec 3 05:10:58 2007 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EB0F716A417 for ; Mon, 3 Dec 2007 05:10:58 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: from sigma.octantis.com.au (ns2.octantis.com.au [207.44.189.124]) by mx1.freebsd.org (Postfix) with ESMTP id B101613C459 for ; Mon, 3 Dec 2007 05:10:58 +0000 (UTC) (envelope-from freebsd@meijome.net) Received: (qmail 31577 invoked from network); 2 Dec 2007 22:44:17 -0600 Received: from 124-170-149-217.dyn.iinet.net.au (HELO localhost) (124.170.149.217) by sigma.octantis.com.au with (DHE-RSA-AES256-SHA encrypted) SMTP; 2 Dec 2007 22:44:16 -0600 Date: Mon, 3 Dec 2007 15:44:12 +1100 From: Norberto Meijome To: freebsd-security@freebsd.org Message-ID: <20071203154412.461d0faf@meijome.net> X-Mailer: Claws Mail 3.0.2 (GTK+ 2.12.1; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: MD5 Collisions... X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Dec 2007 05:10:59 -0000 Hi everyone, Not sure if you've read http://www.win.tue.nl/hashclash/SoftIntCodeSign/ . should some kind of advisory be sent to advise people not to rely solely on MD5 checksums? Maybe an update to the man page is due ? : " MD5 has not yet (2001-09-03) been broken, but sufficient attacks have been made that its security is in some doubt. The attacks on MD5 are in the nature of finding ``collisions'' -- that is, multiple inputs which hash to the same value; it is still unlikely for an attacker to be able to determine the exact original input given a hash value. " Cheers, B _________________________ {Beto|Norberto|Numard} Meijome If you find a solution and become attached to it, the solution may become your next problem. I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned.