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This black box chip in devices can frustrate hackers

Monday - May 14, 2018 7:38 pm , Category : SCIENCE & TECHNOLOGY
 This  black box  chip in devices can frustrate hackers
This black box chip in devices can frustrate hackers
New York May 14 (IANS) In an era of Machine Learning (ML)-enabled hacking in which Artificial Intelligence (AI) technology is trained to "learn" and model inputs and outputs a new chip-based technology termed as a "black box" can thwart hackers plans say researchers.
According to Computer Science Professor Dmitri Strukov from the University of California-Santa Barbara he and his team were looking to put an extra layer of security on devices.
The result is a chip that deploys "ionic memristor" technology.
Key to this technology is the memristor or memory resistor -- an electrical resistance switch that can "remember" its state of resistance based on its history of applied voltage and current.
A circuit made of memristors results in a "black box" of sorts as Strukov called it with outputs extremely difficult to predict based on the inputs.
"You can think of it as a black box. Due to its nature the chip is physically unclonable and can thus render the device invulnerable to hijacking counterfeiting or replication by cyber-criminals " said Strukov in a paper which appeared in the journal Nature Electronics.
With ML an attacker doesn t even need to know what exactly is occurring as the computer is trained on a series of inputs and outputs of a system.
"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 " said 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.
"If we scale it a little bit further it s going to be hardware which could be in many metrics the state-of-the-art " Strukov noted.

--IANS na/bg