Security guaranteed wireless communication over common noise attack under spatial assumption
نویسنده
چکیده
We assume that Eve and Bob are connected to Alice with additive white Gaussian noise, and their noises are correlated. We mathematically formulate the correlation between their noises, and optimize Eve’s strategy. We give a necessarily and sufficient condition to generate the agreed secure key between Alice and Bob even with the Eve’s optimal strategy. Further, in this setting, we give a concrete protocol to generate secure final keys whose leaked information is rigorously and quantitatively guaranteed even with finite block-length code. Further, we prepare solutions for two possible attacks by Eve.
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