Date: Tue, 13 Jul 1999 20:22:46 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: "Allen Smith" <easmith@beatrice.rutgers.edu>, Wes Peters <wes@softweyr.com>, FreeBSD Security <freebsd-security@FreeBSD.ORG> Subject: Re: Secure Deletion Message-ID: <25781.931890166@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 13 Jul 1999 11:15:23 PDT." <199907131815.LAA79582@apollo.backplane.com>
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In message <199907131815.LAA79582@apollo.backplane.com>, Matthew Dillon writes: > >:Just in case anybody wants to do this "RIGHT": >: >:UFS/FFS will issue B_FREEBUF strategy calls, which a device driver >:could turn into "secure delete" operations should the drive support >:this, or multiple over-writes if it doesn't. > > ... and this actually would work. I use B_FREEBUF in MFS to deallocate > underlying VM when possible, though I don't bother making it secure. Of course it does, it was written to do early delete on flash devices :-) -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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