[Taken] A commercial alternative to QKD: filling USB sticks and hard disks with random bits

Quantum key distribution (QKD) offers unconditional security according to the laws of quantum physics. A QKD system enables its users to securely set up symmetric keys for encryption by sending quantum signals, either over optical fibres or over free-space. In current commercial QKD systems, these symmetric keys are consumed in classical secure communications protocols like … full description “[Taken] A commercial alternative to QKD: filling USB sticks and hard disks with random bits”