From owner-freebsd-security Thu May 20 23:35:22 1999 Delivered-To: freebsd-security@freebsd.org Received: from xylan.com (postal.xylan.com [208.8.0.248]) by hub.freebsd.org (Postfix) with ESMTP id 0D4E214E78 for ; Thu, 20 May 1999 23:35:17 -0700 (PDT) (envelope-from wes@softweyr.com) Received: from mailhub.xylan.com by xylan.com (8.8.7/SMI-SVR4 (xylan-mgw 2.2 [OUT])) id XAA17266; Thu, 20 May 1999 23:34:39 -0700 (PDT) Received: from omni.xylan.com by mailhub.xylan.com (SMI-8.6/SMI-SVR4 (mailhub 2.1 [HUB])) id XAA22650; Thu, 20 May 1999 23:34:39 -0700 Received: from softweyr.com ([204.68.178.39]) by omni.xylan.com (4.1/SMI-4.1 (xylan engr [SPOOL])) id AA03117; Thu, 20 May 99 23:34:30 PDT Message-Id: <3744FE75.E83FA611@softweyr.com> Date: Fri, 21 May 1999 00:34:29 -0600 From: Wes Peters Organization: Softweyr LLC X-Mailer: Mozilla 4.5 [en] (X11; U; FreeBSD 3.1-RELEASE i386) X-Accept-Language: en Mime-Version: 1.0 To: junkmale@xtra.co.nz Cc: Darren Reed , freebsd-security@FreeBSD.ORG Subject: Re: secure deletion References: <37438E4C.4B95B937@softweyr.com> from Wes Peters at "May 19, 99 10:23:40 pm" <19990520065202.IDMD7869945.mta1-rme@wocker> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Dan Langille wrote: > > On 20 May 99, at 16:42, Darren Reed wrote: > > > I'd worry about this sort of thing when and if FreeBSD is ever used for > > storing of (officially) classified/confidential material and even then, > > the solution is likely to be to take a hammer or drill to the disks. > > I know of at least one government department which drills through the > platters when disposing of a disk drive. None of the above would have met those specifications, just in case you're wondering. All platters had to be destroyed in an 800 degree F oven for at least an hour, or ground into small particles. ;^) But then again, we were storing relatively important information on those disks. For relatively mundane security needs, overwriting with one pass of 0xa3 (10100101) followed by one pass of 0x3a (01011010) would certainly suffice. -- "Where am I, and what am I doing in this handbasket?" Wes Peters Softweyr LLC http://www.softweyr.com/~softweyr wes@softweyr.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message