From owner-freebsd-hackers@FreeBSD.ORG Tue Nov 14 19:21:23 2006 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A568516A55D; Tue, 14 Nov 2006 19:21:23 +0000 (UTC) (envelope-from max@love2party.net) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.183]) by mx1.FreeBSD.org (Postfix) with ESMTP id 221EE43D72; Tue, 14 Nov 2006 19:21:02 +0000 (GMT) (envelope-from max@love2party.net) Received: from [88.66.1.82] (helo=amd64.laiers.local) by mrelayeu.kundenserver.de (node=mrelayeu1) with ESMTP (Nemesis), id 0MKwpI-1Gk3q21VMO-0000gD; Tue, 14 Nov 2006 20:20:54 +0100 From: Max Laier Organization: FreeBSD To: David Malone Date: Tue, 14 Nov 2006 20:20:47 +0100 User-Agent: KMail/1.9.4 References: <200611141709.26644.max@love2party.net> <20061114190930.GA23096@walton.maths.tcd.ie> In-Reply-To: <20061114190930.GA23096@walton.maths.tcd.ie> X-Face: ,,8R(x[kmU]tKN@>gtH1yQE4aslGdu+2]; R]*pL,U>^H?)gW@49@wdJ`H<=?utf-8?q?=25=7D*=5FBD=0A=09U=5For=3D=5CmOZf764=26nYj=3DJYbR1PW0ud?=>|!~,,CPC.1-D$FG@0h3#'5"k{V]a~.<=?utf-8?q?mZ=7D44=23Se=7Em=0A=09Fe=7E=5C=5DX5B=5D=5Fxj?=(ykz9QKMw_l0C2AQ]}Ym8)fU MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1347703.ze6erUDHTS"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200611142020.53178.max@love2party.net> X-Provags-ID: kundenserver.de abuse@kundenserver.de login:61c499deaeeba3ba5be80f48ecc83056 Cc: freebsd-hackers@freebsd.org, freebsd-net@freebsd.org Subject: Re: ipv6 connection hash function wanted ... X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Nov 2006 19:21:23 -0000 --nextPart1347703.ze6erUDHTS Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Tuesday 14 November 2006 20:09, David Malone wrote: > On Tue, Nov 14, 2006 at 05:09:20PM +0100, Max Laier wrote: > > Any ideas? Any papers that deal with this problem? > > Assuming you don't want to use one of the standard cryptographic > ones (which I can imagine being a bit slow for something done > per-packet), then one option might be to use a simpler hash that > is keyed. Choose the key at boot/module load time and make it hard > to produce collisions unless you know the key. That's exactly what I am looking for ... now I need someone[tm] - with=20 better Math-Knowledge than mine - to write such a thing down in a simple=20 formula :-) i.e. take those bits from there and there and XOR them with=20 your canary yada-yada-yada ... =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart1347703.ze6erUDHTS Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQBFWhcVXyyEoT62BG0RAjiKAJ9dSHkBUj3/uxRoU6aoJ3ZTJ0oF9ACfQXpp 7h8OmbXL25j6zXx34OEJYhU= =apir -----END PGP SIGNATURE----- --nextPart1347703.ze6erUDHTS--