Secure topology discovery through network-wide clock synchronization

Roberto Solis Robles, Jason J. Haas, Jerry T. Chiang, Yih Chun Hu, P. R. Kumar

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

Abstract

Clock synchronization is a fundamental service for many applications in wireless sensor networks. Because of its critical importance, several protocols have been proposed to achieve clock synchronization. However, most of them are not designed to work in adversarial environments, where security attacks occur. In particular, a man-in-the-middle attack, where the attacker tampers with the properties of a link, could prevent the proper operation of the clock synchronization protocol, therefore affecting every application that relies on the clock synchronization service. We present a secure network-wide clock synchronization protocol which also allows the nodes to securely discover the network topology by detecting and isolating links that behave inconsistently. This protocol is based on detecting attacks using timing information alone under certain conditions. We have developed an implementation of this protocol where we have shown that any inconsistent link found in the network is effectively eliminated.

Original languageEnglish (US)
Title of host publication2010 International Conference on Signal Processing and Communications, SPCOM 2010
DOIs
StatePublished - Oct 29 2010
Event2010 International Conference on Signal Processing and Communications, SPCOM 2010 - Bangalore, India
Duration: Jul 18 2010Jul 21 2010

Publication series

Name2010 International Conference on Signal Processing and Communications, SPCOM 2010

Other

Other2010 International Conference on Signal Processing and Communications, SPCOM 2010
CountryIndia
CityBangalore
Period7/18/107/21/10

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

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