NDLI: Network codes resilient to jamming and eavesdropping

Content Provider	ACM Digital Library
Author	Yao, Hongyi Jaggi, Sidharth Silva, Danilo Langberg, Michael
Copyright Year	2015
Abstract	We consider the problem of communicating information over a network secretly and reliably in the presence of a hidden adversary who can eavesdrop and inject malicious errors. We provide polynomial-time distributed network codes that are information-theoretically rate-optimal for this scenario, improving on the rates achievable in prior work by Ngai et al. Ourmain contribution shows that as long as the sum of the number of links the adversary can jam (denoted by $\textit{ZO})$ and the number of links he can eavesdrop on (denoted by $\textit{ZI})$ is less than the network capacity (denoted by $\textit{C})$ (i.e., $\textit{ZO}+\textit{ZI}$ < $\textit{C}),$ our codes can communicate (with vanishingly small error probability) a single bit correctly and without leaking any information to the adversary.We then use this scheme as amodule to design codes that allow communication at the source rate of $\textit{C}-\textit{ZO}$ when there are no security requirements, and codes that allow communication at the source rate of $\textit{C}-\textit{ZO}-\textit{ZI}$ while keeping the communicated message provably secret from the adversary. Interior nodes are oblivious to the presence of adversaries and perform random linear network coding; only the source and destination need to be tweaked. We also prove that the rate-region obtained is information-theoretically optimal. In proving our results, we correct an error in prior work by a subset of the authors in this paper.
Starting Page	1978
Ending Page	1987
Page Count	10
File Format	PDF
ISSN	10636692
DOI	10.1109/TNET.2013.2294254
Volume Number	22
Issue Number	6
Journal	IEEE/ACM Transactions on Networking (TON)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-12-01
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Achievable rates Adversary Error control Network coding Secrecy
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Networks and Communications Software Computer Science Applications

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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