Date: Wed, 10 Oct 2007 23:17:01 +0200 From: Roland Smith <rsmith@xs4all.nl> To: Fabian Keil <freebsd-listen@fabiankeil.de> Cc: freebsd-questions@freebsd.org Subject: Re: Booting a GELI encrypted hard disk Message-ID: <20071010211701.GB15103@slackbox.xs4all.nl> In-Reply-To: <20071010201838.23fa7c2f@fabiankeil.de> References: <470CCDE2.9090603@ibctech.ca> <20071010175349.GB9770@slackbox.xs4all.nl> <20071010201838.23fa7c2f@fabiankeil.de>
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[-- Attachment #1 --] On Wed, Oct 10, 2007 at 08:18:38PM +0200, Fabian Keil wrote: > Roland Smith <rsmith@xs4all.nl> wrote: > > > On Wed, Oct 10, 2007 at 09:04:34AM -0400, Steve Bertrand wrote: > > > > I am voraciously attempting to get a FreeBSD system to boot from a GELI > > > encrypted hard disk, but am having problems. > > > > 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? > > 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. 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 -- 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) [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHDUFNEnfvsMMhpyURAkmZAJ0bPe9VYsxa9/9CT4ei/9UP3EiqiwCaA3Eb W88GtF4Nc6VcEkybRQUb9SQ= =vYGT -----END PGP SIGNATURE-----help
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