From owner-freebsd-questions@FreeBSD.ORG Wed Oct 10 21:17:05 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 09F2B16A419 for ; Wed, 10 Oct 2007 21:17:05 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr9.xs4all.nl (smtp-vbr9.xs4all.nl [194.109.24.29]) by mx1.freebsd.org (Postfix) with ESMTP id 878F813C457 for ; Wed, 10 Oct 2007 21:17:04 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr9.xs4all.nl (8.13.8/8.13.8) with ESMTP id l9ALH1DL053027; Wed, 10 Oct 2007 23:17:01 +0200 (CEST) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id 12FA5B869; Wed, 10 Oct 2007 23:17:01 +0200 (CEST) Date: Wed, 10 Oct 2007 23:17:01 +0200 From: Roland Smith To: Fabian Keil Message-ID: <20071010211701.GB15103@slackbox.xs4all.nl> Mail-Followup-To: Fabian Keil , freebsd-questions@freebsd.org References: <470CCDE2.9090603@ibctech.ca> <20071010175349.GB9770@slackbox.xs4all.nl> <20071010201838.23fa7c2f@fabiankeil.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="gj572EiMnwbLXET9" Content-Disposition: inline In-Reply-To: <20071010201838.23fa7c2f@fabiankeil.de> X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.16 (2007-06-09) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: freebsd-questions@freebsd.org Subject: Re: Booting a GELI encrypted hard disk X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Oct 2007 21:17:05 -0000 --gj572EiMnwbLXET9 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 10, 2007 at 08:18:38PM +0200, Fabian Keil wrote: > Roland Smith wrote: >=20 > > On Wed, Oct 10, 2007 at 09:04:34AM -0400, Steve Bertrand wrote: >=20 > > > I am voraciously attempting to get a FreeBSD system to boot from a GE= LI > > > encrypted hard disk, but am having problems. > >=20 > > You don't need to encrypt the whole harddisk. You can encrypt separate > > slices. There is no need to encrypt stuff like / or /usr; what is there > > that needs to be kept secret? >=20 > Encryption isn't only useful for private data, > it also reduces the risk of third parties replacing > your binaries with Trojans while your away. If that someone can replace binaries on a running system, you're box has been h4x0red and you're screwed anyway. Doubly so if your encrypted filesystem was mounted at the time. :-) Disk encryption is mostly a defense against data-loss in case of the machine or disk being stolen.=20 It's easy enough to make a list of SHA256 checksums of all binaries and store that on the encrypted partition, so you can check the binaries any time you want. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --gj572EiMnwbLXET9 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHDUFNEnfvsMMhpyURAkmZAJ0bPe9VYsxa9/9CT4ei/9UP3EiqiwCaA3Eb W88GtF4Nc6VcEkybRQUb9SQ= =vYGT -----END PGP SIGNATURE----- --gj572EiMnwbLXET9--