Erase memory on shutdown
galtsev at kicp.uchicago.edu
Mon Aug 6 00:10:09 UTC 2018
On Sun, August 5, 2018 6:37 pm, Erich Dollansky wrote:
> On Sun, 5 Aug 2018 10:55:22 -0500 (CDT)
> "Valeri Galtsev" <galtsev at 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.
Please, correct me if I am wrong in the following:
If the attacker yanks off the power cord, then cold boots off his media,
your defense/erasure of memory does not protect you against this attack.
Right? Your defense only helps if the attacker does clean shutdown. Right?
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
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