> -----Original Message----- > From: [EMAIL PROTECTED] > Sent: Wed, 1 Jun 2005 16:25:55 +1000 > To: misc@openbsd.org > Subject: Re: howto clean disks ? > > Hi Anthony, > > On 01/06/2005, at 4:01 PM, Anthony Roberts wrote: > > > The 'dd' way is good enough unless someone is willing to to tear the > > drive apart in a lab. > > I think this depends on how you use dd though. If you just do a single > pass of zeroes, but fear someone will mount a multi million dollar > electron microscope forensic analysis, then yeah, that might not be > enough. But write from /dev/urandom with dd multiple times to the disk > and you should be okay even with that extreme case.
thats right. but if you're paranoid enough after doing dd if=/dev/urandom you can either check the drives using disks forensics available. you can download one from the sourceforge website http://pyflag.sourceforge.net/Documentation/tutorials/forensics.html just for yourself to know that nothing is left on the disks. > > If I were worried about open-drive analysis of the drive I want to > clean, then I'd be physically destroying the drive also. Put it in a > kiln, get the oxy torch into it, etc.
