China Demonstrates World’s First Quantum-Encrypted Video Call

in #science7 years ago

In this demonstration, a secure key was generated from a quantum satellite called Micius that launched in August 2016. This satellite creates photons suspended in superposition. The peculiar properties of a single photon can be used to generate a random sequence of bits as the encryption key.

Due to the principles of quantum mechanics, it is impossible for outsiders to read a message without altering it.

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