Date: Sun, 27 Jun 1999 07:50:26 +1000 From: Greg Black <gjb@acm.org> To: Wes Peters <wes@softweyr.com> Cc: "Crist J. Clark" <cjclark@home.com>, freebsd-security@FreeBSD.ORG Subject: Re: Secure Deletion Message-ID: <19990626215027.8024.qmail@alice.gba.oz.au> In-Reply-To: <3773FF9A.6775458D@softweyr.com> of Fri, 25 Jun 1999 16:15:54 CST References: <199906250212.WAA07810@cc942873-a.ewndsr1.nj.home.com> <19990625204513.4139.qmail@alice.gba.oz.au> <3773FF9A.6775458D@softweyr.com>
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Wes Peters writes: > > 3. newfs the disks and fill them with 0x55 bytes > > 4. repeat step 3, using 0xAA then repeat step 3 > > Oh good grief! If you're going to use the obliterate program I just > mailed out, be sure to edit lines 82 and 90 and change the byte > values to 0xaa and 0x55, because 0xa and 0x5 aren't going to cut > it. ;^) Also note that, if there is a concern with some of the data still exisiting in disk blocks of now deleted files, it's still necessary to apply this overwrite to the whole disk partition. -- Greg Black -- <gjb@acm.org> or <gjb@computer.org> Fight censorship in Australia: <http://www.efa.org.au>; To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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