From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1NKFeo-0004LS-CS for garchives@archives.gentoo.org; Mon, 14 Dec 2009 18:28:30 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id F3D21E0CA5 for ; Mon, 14 Dec 2009 18:28:29 +0000 (UTC) Received: from sentinel.math.Princeton.EDU (sentinel.math.Princeton.EDU [128.112.16.31]) by pigeon.gentoo.org (Postfix) with ESMTP id 17F05E0933 for ; Mon, 14 Dec 2009 17:23:43 +0000 (UTC) Received: from math.princeton.edu ([128.112.18.16] helo=sep.dynalias.net) by sentinel.math.Princeton.EDU with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1NKEe5-0002Uo-Sl for gentoo-user@lists.gentoo.org; Mon, 14 Dec 2009 12:23:42 -0500 Received: by sep.dynalias.net (Postfix, from userid 1001) id 856A464B02A; Mon, 14 Dec 2009 12:27:26 -0500 (EST) Date: Mon, 14 Dec 2009 12:27:26 -0500 From: Willie Wong To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] OT: extract an image from a .doc file? Message-ID: <20091214172726.GA21778@princeton.edu> Mail-Followup-To: gentoo-user@lists.gentoo.org References: <19C9F1BB-65F4-4D4C-8506-160A471F1625@stellar.eclipse.co.uk> <4B2501AD.7000008@darkmetatron.de> <155E655C-2B23-4BF3-ACD9-F186A5C3D965@stellar.eclipse.co.uk> <20091214151823.GC21815@princeton.edu> <4B26670F.2020200@gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B26670F.2020200@gmail.com> User-Agent: Mutt/1.5.16 (2007-06-09) X-Archives-Salt: 8e02b843-99ed-476e-b15b-35e8c3c32ab6 X-Archives-Hash: ec39b1ea9c29f45429d43f44b3b5a7d5 On Mon, Dec 14, 2009 at 10:25:51AM -0600, Penguin Lover Dale squawked: > I'm somewhat clueless about this software issue but wonder about this way > of seeing things. Since it appears there is a signature, as in what is at > the bottom of a letter or a bank check, wouldn't they want to make it so > that is not able to be extracted at all? If I had a digital signature, I > wouldn't want to put it somewhere that it could be used by someone that I > wouldn't want it to be used by. What's to prevent me from printing it out and forging the signature by hand? Or, god forbid, zooming in, taking a screen-cap, and using the extracted image that way? If this design is *for security*, there are many problems. (Incidentally, Donald Knuth stopped sending out real cheques for bug discovery because people would scan it, put it online for bragging rights, and Knuth's bank account would get targeted for fraudulant transactions.) W -- A lot of money is tainted. It taint yours and it taint mine. Sortir en Pantoufles: up 1102 days, 16:12