Date: Thu, 18 Nov 1999 16:09:59 -0500 (EST) From: Dug Song <dugsong@monkey.org> To: Jonathon McKitrick <jcm@dogma.freebsd-uk.eu.org> Cc: security@freebsd.org, questions@freebsd.org Subject: Re: secure filesystem wiping Message-ID: <Pine.BSO.4.10.9911181606420.12081-100000@funky.monkey.org> In-Reply-To: <Pine.BSF.4.02A.9911182103340.6933-100000@dogma.freebsd-uk.eu.org>
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On Thu, 18 Nov 1999, Jonathon McKitrick wrote: > Why isn't it possible to read unallocated sectors and write back sectors > full of garbage, or 0xFF? this was the topic of a recent thread on comp.security.unix: http://x44.deja.com/viewthread.xp?AN=542077498&search=thread&svcclass=dncurrent&ST=PS&CONTEXT=942959294.75104298&HIT_CONTEXT=942959294.75104298&HIT_NUM=0&recnum=%3caziS3.1656$4G.29 peter gutmann's excellent paper from the 6th USENIX security symposium is probably the definitive answer: http://www.fish.com/security/secure_del.html -d. --- http://www.monkey.org/~dugsong/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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