Date: Mon, 6 Aug 2018 07:37:38 +0800 From: Erich Dollansky <freebsd.ed.lists@sumeritec.com> To: "Valeri Galtsev" <galtsev@kicp.uchicago.edu> Cc: "thor" <thor@irk.ru>, John Levine <johnl@iecc.com>, freebsd-questions@freebsd.org Subject: Re: Erase memory on shutdown Message-ID: <20180806073738.6f459398.freebsd.ed.lists@sumeritec.com> In-Reply-To: <63033.108.68.162.197.1533484522.squirrel@cosmo.uchicago.edu> References: <20180805150241.1E186200349F8E@ary.qy> <4e70e969-14f7-c65d-96d2-dd1610499cd0@irk.ru> <63033.108.68.162.197.1533484522.squirrel@cosmo.uchicago.edu>
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Hi, On Sun, 5 Aug 2018 10:55:22 -0500 (CDT) "Valeri Galtsev" <galtsev@kicp.uchicago.edu> wrote: > On Sun, August 5, 2018 10:26 am, thor wrote: > > https://en.wikipedia.org/wiki/Cold_boot_attack > > > > The trouble is that erasing RAM on clean shutdown does not prevent the > attacker in the attack as above from still successfully perform the so, ECC is also here the only possible answer, at least for parts of it. Still, erasing memory when shutting down helps in some cases. I do this on my machines for small parts when a shutdown is detected. It makes at least the most obvious attacks from that side difficult. Erich
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