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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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