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Practical Quantum Key Distribution
[chapter]
Cyber Security Standards, Practices and Industrial Applications
The quantum key distribution (QKD) technique establishes secret keys shared between two communicating parties. Theoretically, unconditional security provided by QKD is guaranteed by the fundamental laws of quantum physics. in the real life, it is still possible to obtain unconditionally secure QKD, even with (phase randomized) attenuated laser pulses, as theoretically demonstrated by Gottesman-Lo-L¨utkenhaus-Preskill (GLLP). However, one must pay a steep price by placing severe limits on the
doi:10.4018/978-1-60960-851-4.ch007
fatcat:y4rxc4no3fg5jlwtakvr5u3rm4