Messages in this thread | | | Date | Tue, 3 Feb 2015 08:10:19 +0000 | From | Al Viro <> | Subject | Re: [PATCH 1/5] WIP: Add syscall unlinkat_s (currently x86* only) |
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On Tue, Feb 03, 2015 at 09:01:36AM +0100, Alexander Holler wrote: > Am 03.02.2015 um 08:56 schrieb Al Viro: > > >While we are at it, "overwrite with zeroes" is too weak if the attacker > >might get hold of the actual hardware. Google for details - it's far too > >long story for l-k posting. Look for data recovery and secure data erasure... > > You might read > > http://link.springer.com/chapter/10.1007/978-3-540-89862-7_21 > > Here is an article in german about that: > > http://www.heise.de/security/meldung/Sicheres-Loeschen-Einmal-ueberschreiben-genuegt-198816.html > > In short, it's enough to overwrite it once with zeros,
Regardless of the media used? How does that work on e.g. flash?
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