From owner-freebsd-geom@FreeBSD.ORG Fri Dec 3 21:17:24 2004 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A6A0816A4CE for ; Fri, 3 Dec 2004 21:17:24 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4AA8A43D45 for ; Fri, 3 Dec 2004 21:17:24 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id 66873ACAF8; Fri, 3 Dec 2004 22:17:21 +0100 (CET) Date: Fri, 3 Dec 2004 22:17:21 +0100 From: Pawel Jakub Dawidek To: John-Mark Gurney Message-ID: <20041203211721.GG813@darkness.comp.waw.pl> References: <41AF3FCE.1030405@fer.hr> <20041202183559.GH19624@funkthat.com> <20041202191954.GE813@darkness.comp.waw.pl> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="PpAOPzA3dXsRhoo+" Content-Disposition: inline In-Reply-To: <20041202191954.GE813@darkness.comp.waw.pl> User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 cc: Ivan Voras cc: freebsd-geom@freebsd.org Subject: Re: More geom classes? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Dec 2004 21:17:24 -0000 --PpAOPzA3dXsRhoo+ Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 02, 2004 at 08:19:54PM +0100, Pawel Jakub Dawidek wrote: +> I was thinking about simlar thing, as we use simlar mechanisms at work +> to share a secret between a few smart cards. +>=20 +> I'm also not sure if CD-ROM with static random data will be safe enough. +> I want to generate random data before every write, xor data with generat= ed +> random data and write both. It should also be faster, as I don't need to +> read random data first. It could be less safe from data integrity point +> of view in case of a power failure, when write request reach only one +> component. +>=20 +> We can also implement both:) +>=20 +> I think, I can do it quite fast. I already did it, btw. It is in perforce: pjd_geom_classes. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --PpAOPzA3dXsRhoo+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFBsNfhForvXbEpPzQRAqDUAKCO/T0nvaoHQL5cBvdvRGFw48x+/gCdFyk2 0XKTDxinpKK9yKmBr0KDNbM= =xpoD -----END PGP SIGNATURE----- --PpAOPzA3dXsRhoo+--