Cryptographers tap the quantum chaos of smartphone cameras

Could a cellphone camera give a quantum boost to cryptography programs? The paper studied the visual noise patterns from the camera on a Nokia N9 smartphone, digging deep enough to track quantum fluctuations. For encryption to work, it needs a steady supply of random numbers to throw attackers off the scent. The solution focuses on camera noise, the pixely haze that appears when you try to take a cellphone picture in low light.

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