Proactive Defense-Based Secure Localization Scheme in Wireless Sensor Networks

Abstract

Sensors’ localizations play a critical role in many sensor network applications. A number of techniques have been proposed recently to discover the locations of regular sensors. However, almost all previously proposed techniques can be trivially abused by a malicious adversary involving false position. The wormhole attack is a particularly challenging one since the external adversary which acts in passive mode, does not need to compromise any nodes or have access to any cryptographic keys. In this paper, wormhole attack in DVhop is discussed, and a Wormhole-free DV-hop Localization scheme (WFDV) is proposed to defend wormhole attack in proactive countermeasure. Using analysis and simulation, we show that our solution is effective in detecting and defending against wormhole attacks with a high detection rate.