Secret-Key-Agreement Advantage Distillation With Quantization Correction. (arXiv:2304.10312v1 [cs.CR])

We propose a novel advantage distillation strategy for physical layer-based
secret-key-agreement (SKA). We consider a scenario where Alice and Bob aim at
extracting a common bit sequence, which should remain secret to Eve, by
quantizing a random number obtained from measurements at their communication
channel. We propose an asymmetric advantage distillation protocol with two
novel features: i) Alice quantizes her measurement and sends partial
information on it over an authenticated public side channel, and ii) Bob
quantizes his measurement by …

aim alice channel communication eve exploiting features information key measurement novel partial physical protocol public random scenario secret strategy