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Raegdan2014-12-26 13:23:50
Information Security
Raegdan, 2014-12-26 13:23:50

Is it possible to protect against a RAM freeze attack with a hair dryer?

Hey Toaster.
Threat model: There is a knock on the door, behind the door "men in black". There is ~30 seconds of time under a plausible pretext (like "I'm naked, I was in the shower"), after which they will have to be let in, and let's imagine the most extreme option: an expert in thermal gloves, continuously pouring liquid nitrogen on my memory, sticks it into the stand he brought with him and takes a dump.
The proposed solution: to strengthen the memory-oriented hair dryer in the system unit. In case of a threat, turn on the hair dryer, de-energize the system unit and wait as long as possible so that the hair dryer has time to warm up the memory before the loss of residual data.
Questions:
1) In principle, will this work?
2) Where can I read research on this topic? In particular, practical aspects are of interest - the required temperatures and exposure time. Since I don’t have the technical ability to conduct a live experiment, I would like to see the work of reputable IS specialists. I am friends with English.

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6 answer(s)
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Puma Thailand, 2014-12-26
@opium

It’s not relevant for Russia, it’s not customary for us to knock, they immediately burst in, we don’t have specialists who can freeze and remove data from memory, it’s customary for us to insert a soldering iron and wait until you yourself tell everything and sign it.
It is enough to press reset to reset the memory, why the hell do you need a hair dryer, I don’t understand.

A
Armenian Radio, 2014-12-26
@gbg

Religion does not allow you to simply fill in memory with zeros?

3
386DX, 2014-12-26
@386DX

imagine the most extreme scenario: an expert in thermal gloves, continuously pouring liquid nitrogen on my memory, sticks it into

after this, you yourself will confess everything

S
slvABTOP, 2014-12-26
@slvABTOP

if you imagine the most extreme option, you won't have 30 seconds :)

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Spetros, 2014-12-26
@Spetros

If these guys have liquid nitrogen with them, they definitely won't knock on the door.
The likelihood of a power outage immediately before a visit is much higher.
Yes, and 30 seconds is also quite optimistic - they will not stand on ceremony.
Usually they take hackers still lukewarm:
https://mvd.ru/news/item/1118500/

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William Thorn, 2014-12-26
@xydope

It is better to mine and use a smart bracelet to transmit the rhythm of the pulse.
The pulse increased - you are nervous, then something happened, bang. But, yes, the scheme is not without flaws. :)
Option 2 thin muzzle to the remote machine.
If desired, option 1 and 2 are combined.

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