From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Brian O'Mahoney" Subject: Re: SHA1 hash safety Date: Mon, 18 Apr 2005 04:07:32 +0200 Message-ID: <42631664.1050403@khandalf.com> References: <200504170635.j3H6Z0Ga005661@laptop11.inf.utfsm.cl> Reply-To: omb@bluewin.ch Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: ross@jose.lug.udel.edu, "C. Scott Ananian" , omb@bluewin.ch, David Lang , Ingo Molnar , git@vger.kernel.org X-From: git-owner@vger.kernel.org Mon Apr 18 04:04:08 2005 Return-path: Received: from vger.kernel.org ([12.107.209.244]) by ciao.gmane.org with esmtp (Exim 4.43) id 1DNLcL-0008GK-Sk for gcvg-git@gmane.org; Mon, 18 Apr 2005 04:04:06 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261600AbVDRCHy convert rfc822-to-quoted-printable (ORCPT ); Sun, 17 Apr 2005 22:07:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261599AbVDRCHx (ORCPT ); Sun, 17 Apr 2005 22:07:53 -0400 Received: from mxout.hispeed.ch ([62.2.95.247]:478 "EHLO smtp.hispeed.ch") by vger.kernel.org with ESMTP id S261600AbVDRCHp (ORCPT ); Sun, 17 Apr 2005 22:07:45 -0400 Received: from khandalf.com (80-218-57-125.dclient.hispeed.ch [80.218.57.125]) (authenticated bits=0) by smtp.hispeed.ch (8.12.6/8.12.6/tornado-1.0) with ESMTP id j3I27icb002890 for ; Mon, 18 Apr 2005 04:07:44 +0200 Received: from [127.0.0.1] (localhost [127.0.0.1]) by teraflex.teraflex-research.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id j3I27ZfV026634; Mon, 18 Apr 2005 04:07:36 +0200 User-Agent: Mozilla Thunderbird 1.0.2 (X11/20050317) X-Accept-Language: en-us, en To: Horst von Brand In-Reply-To: <200504170635.j3H6Z0Ga005661@laptop11.inf.utfsm.cl> X-Enigmail-Version: 0.90.2.0 X-Enigmail-Supports: pgp-inline, pgp-mime X-Md5-Body: 6b38c40ab074b6eec455e1460f8ea24e X-Transmit-Date: Monday, 18 Apr 2005 4:8:17 +0200 X-Message-Uid: 0000b49cec9d5cd30000000200000000426316910009f9f6000000010008d083 Replyto: omb@bluewin.ch X-Sender-Postmaster: Postmaster@80-218-57-125.dclient.hispeed.ch. X-Virus-Scanned: ClamAV version 0.83, clamav-milter version 0.83 on smtp-06.tornado.cablecom.ch X-Virus-Status: Clean Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org Linus wants to drive ahead, and ignore the collision issue for now, and has been dismissive of the risks, he wants a result not heart searching, and the list comments exhibit a confusion with the engineering problem of avoiding accidental collisions v deliberate sabo= tage. Since this is not a show-stopper, and getting the BK replacement in pla= ce is time critical, and if you look at the code it is easy to extend the content key, LET US just leave this issue for now. Horst von Brand wrote: > ross@jose.lug.udel.edu said: >=20 > [...] >=20 >=20 >>Linus has already weighed in that he doesn't give a crap. All the >>crypto-babble about collision whitepapers is uninteresting without a >>repo that has real collisions. git is far too cool as is - prove I >>should be concerned. >=20 >=20 > Just copy over a file (might be the first step in splitting it, or a > header file that is duplicated for convenience, ...) --=20 mit freundlichen Gr=FC=DFen, Brian. Dr. Brian O'Mahoney Mobile +41 (0)79 334 8035 Email: omb@bluewin.ch Bleicherstrasse 25, CH-8953 Dietikon, Switzerland PGP Key fingerprint =3D 33 41 A2 DE 35 7C CE 5D F5 14 39 C9 6D 38 56 D= 5