NDLI: Wiretap Channel with Side Information from Part of Encoder

Content Provider	IEEE Xplore Digital Library
Author	Bin Dai Yuan Luo Han Vinck, A.J.
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Shanghai Jiao Tong Univ., Shanghai (Bin Dai; Yuan Luo) \|\| Inst. for Exp. Math., Duisburg-Essen Univ., Essen (Han Vinck, A.J.)
Abstract	The wiretap channel put forward by A.D. Wyner and the wiretap channel of type II provided by A.D. Wyner and L. H. Oz arow play important roles in network communication and security. In this paper, we consider the situation that a wiretapper can not only tap the main channel output via a noisy wiretap channel, but also get someside information from part of encoder, i.e., some transmitted symbols of the output of the encoder. In other words, the new model of this paper is a combination of the wiretap channel and the wiretap channel of type II. The new model of this paper is different from I. Csiszar and J. Korner 's model [CK], it is also different from N. Merhav's model [Me]. A single-letter characterization is provided for a region composed of all achievable triples: the equivocation to the wiretapper, the reliable transmission rate of the main channel, the ratio of the leaked transmitted symbols. In particular, if the equivocation to the wiretapper is equal to the entropy of the data symbols, then we say that the transmission is accomplished in perfect secrecy. Our results imply in which cases (of the ratio of the leaked transmitted symbols), there may exist a $C'_{s}>0,$ such that reliable transmission at rates up to $C'_{s}$ is in perfect secrecy.
Starting Page	353
Ending Page	357
File Size	295626
Page Count	5
File Format	PDF
ISBN	9780769533544
DOI	10.1109/NPC.2008.58
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Uncertainty side information Mathematics Entropy Decoding Zinc Computer science perfect secrecy Information security Broadcasting Parallel processing wiretap channel Computer security
Content Type	Text
Resource Type	Article

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