Secret Key Agreement by Soft-decision of Signals in Gaussian Maurer's Model

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dc.creatorNaito, Masashi
dc.creatorWatanabe, Shun
dc.creatorMatsumoto, Ryutaroh
dc.creatorUyematsu, Tomohiko
dc.date2008-04-18
dc.date.accessioned2026-07-07T12:51:07Z
dc.date.available2026-07-07T12:51:07Z
dc.descriptionWe consider the problem of secret key agreement in Gaussian Maurer's Model. In Gaussian Maurer's model, legitimate receivers, Alice and Bob, and a wire-tapper, Eve, receive signals randomly generated by a satellite through three independent memoryless Gaussian channels respectively. Then Alice and Bob generate a common secret key from their received signals. In this model, we propose a protocol for generating a common secret key by using the result of soft-decision of Alice and Bob's received signals. Then, we calculate a lower bound on the secret key rate in our proposed protocol. As a result of comparison with the protocol that only uses hard-decision, we found that the higher rate is obtained by using our protocol.
dc.description10 pages, 4 figures, to be appear in Proc. of 2008 IEEE International Symposium on Information Theory in Toronto, Canada
dc.identifierhttps://arxiv.org/abs/0804.2940
dc.identifierhttp://arxiv.org/abs/0804.2940
dc.identifierIEICE Trans. Fundamentals, vol. 92, no. 2, pp. 525-534, February 2009
dc.identifierdoi:10.1587/transfun.E92.A.525
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222891
dc.subjectInformation Theory
dc.subjectCryptography and Security
dc.subjectE.4
dc.titleSecret Key Agreement by Soft-decision of Signals in Gaussian Maurer's Model
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