Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121117
Title: SECURING MULTI-CHANNEL WIRELESS NETWORKS AGAINST MALICIOUS BEHAVIOR
Authors: ZHENG CHAODONG
Keywords: theory, security, distributed algorithms, multi-channel wireless networks, sybil attacks
Issue Date: 13-May-2015
Source: ZHENG CHAODONG (2015-05-13). SECURING MULTI-CHANNEL WIRELESS NETWORKS AGAINST MALICIOUS BEHAVIOR. ScholarBank@NUS Repository.
Abstract: The open and shared nature of wireless networks makes them vulnerable to various malicious behavior, one of which is sybil attacks. Sybil attacks refer to the situation in which malicious users dishonestly generate large numbers of fake identities, and inject them into the network to gain unfair advantage over honest users, or to conduct other hostile activity. In this thesis, we propose several randomized algorithms which can effectively thwart sybil attacks in both centralized and ad hoc multi-channel wireless networks. Our key strategy is called radio resource testing. Compare with previous proposals, our approach can provide provable time and correctness guarantees which are expressed with respect to the actual number of users, and does not require additional information. In this thesis, we have also proved several impossibility results which indicate our algorithms are near optimal in terms of correctness.
URI: http://scholarbank.nus.edu.sg/handle/10635/121117
Appears in Collections:Ph.D Theses (Open)

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