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An Unobservable Secure Routing Protocol against Wormhole and Black hole Attacks in MANET.

Author(s): Annie Jesus Suganthi Rani.A and R.Mathan

Journal: International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
ISSN 2278-1323

Volume: 2;
Issue: 3;
Start page: 1132;
Date: 2013;
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Keywords: Anonymity | Privacy | Security | Unlinkability | Unobservability | USOR.

Mobile ad-hoc network (MANET) is a self-configuring infrastructure-less network of mobile devices. The sensitive information such as mobility behavior should be kept private from adversaries in wireless environments. Privacy-preserving routing is crucial for some ad-hoc networks that require stronger privacy protection say battle field. USOR is an Unobservable Secure On-demand Routing protocol for mobile ad hoc network that achieves unlinkability and unobservability by employing anonymous key establishment based on group signature. Each node only has to obtain a group signature signing key and an ID-based private key from an offline key server or by a key management scheme. Due to dynamic nature and lack of centralized control, the ad hoc networks are vulnerable to attacks. There is no security provision against the wormhole and black hole attacks in existing USOR protocol. In a wormhole attack, attackers tunnel the data from one end of the network to the other, leading distant network nodes to trust they are neighbours and making them communicate through the wormhole link. Black hole nodes are those malicious nodes that conform to forward packet to destination. But they do not forward packet intentionally to the destination node. AODV, USOR and modified USOR are implemented on ns2, and there performances are evaluated.
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