End-to-end Secure Multi-hop Communication with Untrusted Relays is Possible

被引：1

作者：

He, Xiang ^{[1
]}

Yener, Aylin ^{[1
]}

机构：

[1] Penn State Univ, Dept Elect Engn, Wireless Commun & Networking Lab, University Pk, PA 16802 USA

来源：

2008 42ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, VOLS 1-4 | 2008年

关键词：

D O I：

10.1109/ACSSC.2008.5074494

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We consider a source-destination pair that can communicate only through a chain of unauthenticated intermediate relay nodes over AWGN links. In this scenario, it is desirable to use these relays-as otherwise communicating with the destination is impossible-without the relays being able to decode the information flowing through them. This in turn is tantamount to treating the relays as eavesdroppers from whom the information needs to be kept secret. An important question then becomes that of identifying the limits of reliable and secure communication in this network in the information theoretic sense. In particular, we ask whether it is possible to achieve a non-vanishing perfect secrecy rate regardless of the number of hops. In this work, we find that the answer is yes and show that a constant secrecy rate for an arbitrary number of hops is achievable by employing the combination of a lattice code and a random code.

引用

页码：681 / 685

页数：5

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