‘Black box’ chip makes hacking impossible

guest · May 16, 2018

‘Black box’ chip makes hacking impossible
May 13, 2018
https://www.futurity.org/memristor-chip-cybersecurity-1756132/

Researchers have created a chip that deploys ionic memristor technology to solve the digital problem of security with an analog memory hardware solution.

“You can think of it as a black box,” says Strukov. Due to its nature, the chip is physically unclonable, rendering the device invulnerable to hijacking, counterfeiting, or replication by cyber criminals.

“The idea is that it’s hard to predict, and because it’s hard to predict, it’s hard to reproduce,” Strukov says. The multitude of possible inputs can result in at least as many outputs—the more memristors, the more possibilities. Running each would take more time than an attacker may reasonably have to clone one device, let alone a network of them.

“For instance, if you have 2 million outputs and the attacker sees 10,000 or 20,000 of these outputs, he can, based on that, train a model that can copy the system afterwards,” says Hussein Nili, the paper’s lead author. The memristive black box can circumvent this method of attack because it makes the relationship between inputs and outputs look random enough to the outside world even as the circuits’ internal mechanisms are repeatable enough to be reliable.
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