[Cryptography] Cold Boot Attack Prevention

[Ryan Carboni]

http://cryptomuseum.com/crypto/hagelin/hc520/index.htm
> Just visible in the above image, is the tamper-switch that is fitted to the bottom board.
> It has a small metal arm that is operated by the only screw that holds the case together.
> When this screw (located inside the battery compartment) is removed, the entire memory
> of the HC-520 is wiped, complete with the current key and the message.


The application of old ideas to old problems, may solve current
problems, which are really old problems.

Possibly the cheapest secure cryptographic device is an arduino with a
screen and keypad inside a faraday bag, operated in an underground
parking garage.