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Sensors 2009, 9(6), 5022-5039; doi:10.3390/s90605022

Article

A Hop-Count Analysis Scheme for Avoiding Wormhole Attacks in MANET

Shang-Ming Jen¹ , Chi-Sung Laih¹  and Wen-Chung Kuo^2,*

¹ Department of Electrical Engineering, National Cheng Kung University / EE Building 92975R, No.1, Da-Shuei Rd., Tainan City 701, Taiwan ² Department of Computer Science & Information Engineering, National Formosa University / No.64, Wunhua Rd., Huwei Township, Yunlin County 632, Taiwan

* Author to whom correspondence should be addressed.

Received: 22 April 2009; in revised form: 20 May 2009 / Accepted: 22 June 2009 / Published: 24 June 2009

(This article belongs to the Section Physical Sensors)

Download PDF Full-Text [607 KB, uploaded 24 June 2009 01:25 CEST]

Abstract: MANET, due to the nature of wireless transmission, has more security issues compared to wired environments. A specific type of attack, the Wormhole attack does not require exploiting any nodes in the network and can interfere with the route establishment process. Instead of detecting wormholes from the role of administrators as in previous methods, we implement a new protocol, MHA, using a hop-count analysis from the viewpoint of users without any special environment assumptions. We also discuss previous works which require the role of administrator and their reliance on impractical assumptions, thus showing the advantages of MHA.

Keywords: ad hoc network; hop-count analysis; MHA; network security; wormhole attack

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