[Cryptography] Photon beam splitters for "true" random number generation ?
leichter at lrw.com
Tue Dec 29 01:30:44 EST 2015
> -- "Spare" copies of the data are never left lying around on
> the device. If data is moved for wear-leveling, the old version
> is immediately obliterated. If blocks need to be moved to the
> bad-block list, they are immediately obliterated.
I wonder about the physics here. Can a block go bad in such a way that it can be read but can't be erased? (The practical significance of such a failure mode - assuming it's unlikely - is likely of little importance; I'm just "wondering out loud".)
Of course, *if* such a failure is possible, the next question is whether it can be "encouraged" by an attacker.
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