From owner-freebsd-questions@FreeBSD.ORG Tue Jan 18 07:07:27 2011 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 C66501065673 for ; Tue, 18 Jan 2011 07:07:27 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr15.xs4all.nl (smtp-vbr15.xs4all.nl [194.109.24.35]) by mx1.freebsd.org (Postfix) with ESMTP id 43A5D8FC13 for ; Tue, 18 Jan 2011 07:07:26 +0000 (UTC) Received: from slackbox.erewhon.net (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr15.xs4all.nl (8.13.8/8.13.8) with ESMTP id p0I77Klm067314; Tue, 18 Jan 2011 08:07:25 +0100 (CET) (envelope-from rsmith@xs4all.nl) Received: by slackbox.erewhon.net (Postfix, from userid 1001) id EF753B85F; Tue, 18 Jan 2011 08:07:19 +0100 (CET) Date: Tue, 18 Jan 2011 08:07:19 +0100 From: Roland Smith To: Modulok Message-ID: <20110118070719.GA51692@slackbox.erewhon.net> References: <4D34A6EF.30600@alokat.org> <20110117225308.GA40523@slackbox.erewhon.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ikeVEW9yuYc//A+q" Content-Disposition: inline In-Reply-To: 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/1.5.21 (2010-09-15) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: Alokat , freebsd-questions@freebsd.org Subject: Re: harddrive encryption 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: Tue, 18 Jan 2011 07:07:27 -0000 --ikeVEW9yuYc//A+q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jan 17, 2011 at 10:05:53PM -0700, Modulok wrote: > On 1/17/11, Roland Smith wrote: > > On Mon, Jan 17, 2011 at 09:30:39PM +0100, Alokat wrote: > >> Hi, > >> > >> is it possible to encrypt my full harddrive (excluding /boot) during a > >> freebsd installation. Or do I have to do this after the installation > >> manually? > > > > Currently you have to do it manually afterwards. > > > > Personally, I would not bother encrypting the OS data; there is nothing > > secret > > there, and it does have a performance impact. Plus it would provide amp= le > > material for a known-plaintext attack! > > >=20 > Modern ciphers such as AES are not susceptible to known plaintext > attacks. That is indeed what it says on http://en.wikipedia.org/wiki/Known-plaintext_attack. But without any source or other justification. In this case, I'd say [citation needed]! At one time Enigma and DES were regarded as unbreakable. :-)=20 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) --ikeVEW9yuYc//A+q Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iEYEARECAAYFAk01PCcACgkQEnfvsMMhpyUxUACfanPbjIMVQa9ulFQ7AujtWvx0 lgwAnAsuvO3Mv+tJHYnkQOV7D4/J+3Di =QlC4 -----END PGP SIGNATURE----- --ikeVEW9yuYc//A+q--