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Comments On “Information-Theoretic Key Agreement of Multiple Terminals—Part I”

机译:关于“多终端的信息理论密钥协定第一部分”的评论

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Theorem 5 of A. Gohari, V. Anantharam, IEEE Transactions on Information Theory, vol. 56, no. 8, pp. 3973-3996, 2010, states an upper bound on the secrecy capacity for the source model problem. It has a three page proof given in Appendix B of the paper. Unfortunately, we show that this bound does not provide any improvement over the simpler bound given in Corollary 1 of the paper. We also provide an example of a family of two agent source model problems where the one-way secrecy rate in each direction is zero, but the secrecy rate is nonzero and can be determined exactly as a conditional mutual information.
机译:A. Gohari,V。Anantharam的定理5,IEEE Transactions on Information Theory,第1卷。 56号8,第3973-3996页,2010年,阐述了源模型问题的保密容量的上限。该文件的附录B中给出了三页的证明。不幸的是,我们证明了该界限与本文推论1中给出的简单界限相比没有任何改善。我们还提供了两个代理源模型问题家族的示例,其中每个方向的单向保密率均为零,但保密率不为零,可以确定为条件互信息。

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