Quantum Cryptography

  Quantum Cryptography   What is Quantum Cryptography? Quantum cryptography is different than post-quantum cryptography or quantum-resistant cryptography. quantum cryptography takes advantage of the properties of quantum physics to encrypt information at the physical network layer.  Post-quantum and quantum-resistant cryptography efforts , however, remain focused on developing encryption methods that rely on hard math problems—the kind that quantum computing is not well-suited to solve.[2] How Quantum Cryptography Works Qubits have an interesting property they settle on a single state when observed.  Today’s encryption methods can be avoid by side-channel attacks, man-in-the-middle attacks, and more. But the quirk of qubits makes it easy to tell if they’ve been observed. If they’ve settled on a single state, then you would know not to trust the message. In this way, quantum cryptography could encrypt fiber networks—i.e. the physical layer—from end to end. With fiber ...