"SK Telecom’s chip operates on a process called quantum shot noise that generates mathematically proven random numbers.
Quantum shot noise is more than a buzzword; it’s a scientifically tested principle that relies on the ricochet of light waves that produce patterns that always are random and unique. SK Telecom’s security chip generates quantum shot noise with two LEDs inside the chip itself.
The LEDs generate photons that bounce around inside the chip and are detected by a Complementary Metal-Oxide-Semiconductor (CMOS) image sensor within the chip. The shot noise is the final image detected by the CMOS sensor, and it is this shot noise that truly is random.
The new security chip is estimated to cost a few dollars, making it a very attractive option for robust, future-proof security."