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2010
ACM

Securing every bit: authenticated broadcast in radio networks

9 years 4 months ago
Securing every bit: authenticated broadcast in radio networks
This paper studies non-cryptographic authenticated broadcast in radio networks subject to malicious failures. We introduce two protocols that address this problem. The first, NeighborWatchRB, makes use of a novel strategy in which honest devices monitor their neighbors for malicious behavior. Second, we present a more robust variant, MultiPathRB, that tolerates the maximum possible density of malicious devices per region, using an elaborate voting strategy. We also introduce a new proof technique to show that both protocols ensure asymptotically optimal running time. We demonstrate the fault tolerance of our protocols through extensive simulation. Simulations show the practical superiority of the NeighborWatchRB protocol (an advantage hidden in the constants of the asymptotic complexity). The NeighborWatchRB protocol even performs relatively well when compared to the simple, fast epidemic protocols commonly used in the radio setting, protocols that tolerate no malicious faults. We th...
Dan Alistarh, Seth Gilbert, Rachid Guerraoui, Zark
Added 18 Jul 2010
Updated 18 Jul 2010
Type Conference
Year 2010
Where SPAA
Authors Dan Alistarh, Seth Gilbert, Rachid Guerraoui, Zarko Milosevic, Calvin C. Newport
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