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CORR
2008
Springer

Universe Detectors for Sybil Defense in Ad Hoc Wireless Networks

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Universe Detectors for Sybil Defense in Ad Hoc Wireless Networks
The Sybil attack in unknown port networks such as wireless is not considered tractable. A wireless node is not capable of independently differentiating the universe of real nodes from the universe of arbitrary non-existent fictitious nodes created by the attacker. Similar to failure detectors, we propose to use universe detectors to help nodes determine which universe is real. In this paper, we (i) define several variants of the neighborhood discovery problem under Sybil attack (ii) propose a set of matching universe detectors (iii) demonstrate the necessity of additional topological constraints for the problems to be solvable: node density and communication range; (iv) present SAND -- an algorithm that solves these problems with the help of appropriate universe detectors, this solution demonstrates that the proposed universe detectors are the weakest detectors possible for each problem.
Adnan Vora, Mikhail Nesterenko, Sébastien T
Added 25 Dec 2010
Updated 25 Dec 2010
Type Journal
Year 2008
Where CORR
Authors Adnan Vora, Mikhail Nesterenko, Sébastien Tixeuil, Sylvie Delaët
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