Sensor networks that are provably resilient

Roberto Di Pietro, Luigi V. Mancini, Alessandro Mei, Alessandro Panconesi, Jaikumar Radhakrishnan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Scopus citations


We give, for the first time, a precise mathematical analysis of the connectivity and security properties of sensor networks that make use of the random pre-distribution of keys. We also show how to set the parameters- pool and keyring size- in such a way that the network is not only connected with high probability via secure links, but also provably resilient, in the following sense: we formally show that any attacker that captures sensors at random with the aim of compromising a constant fraction of the secure links, must capture at least a constant fraction of the nodes of the network. In the context of wireless sensor networks where random pre-distribution of keys is employed, we are the first to provide a mathematically precise proof, with a clear indication of parameter choice, that two crucial properties - connectivity via secure links and resilience against malicious attacks- can be obtained simultaneously. Our theoretical results are complemented by extensive simulations that reinforce our main conclusions. ©2006 IEEE.
Original languageEnglish (US)
Title of host publication2006 Securecomm and Workshops
StatePublished - Dec 1 2006
Externally publishedYes


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