Key Distribution Protocols Based on Noisy Channels in Presence of an Active Adversary: Conventional and New Versions With Parameter Optimization

Authors:
V. Yakovlev;V. Korzhik;G. Morales-Luna
Affiliations:
Dept. of Inf. Security of Telecommun. Syst., State Univ. of Telecommun., St. Petersburg;-;-
Venue:
IEEE Transactions on Information Theory
Year:
2008

Citing 0
Cited 2

On passive inference attacks against physical-layer key extraction?

Proceedings of the Fourth European Workshop on System Security
Optimization of key distribution protocols based on extractors for noisy channels within active adversaries

MMM-ACNS'12 Proceedings of the 6th international conference on Mathematical Methods, Models and Architectures for Computer Network Security: computer network security

Quantified Score

Hi-index	754.84

Visualization

Abstract

In this paper, we consider the information-theoretic secure key distribution problem over noisy wiretap channels with public discussion and in the presence of an active adversary. There are several well-known versions of the protocols proposed by Maurer and Wolf to solve this problem. We describe several new versions of the key distribution protocols for the same channel model allowing to increase the key rate given a fixed key security and under an optimization of the protocol parameters. Both asymptotic and nonasymptotic cases are presented. It is shown that in some cases the nonasymptotic key rate is not so far from the asymptotic one whenever the lengths of the transmitted strings are of the order of thousands of bits.