A Mechanism for Detection of Gray Hole Attack in Mobile Ad Hoc Networks

Details A Mechanism for Detection of Gray Hole Attack in Mobile Ad Hoc Networks A Mechanism for Detection of Gray Hole Attack in Mobile Ad Hoc Networks

2011-11-02

arxiv.org/abs/1111.0386v1

Computer Science

Cryptography and Security

5 pages, 5 figures, 3 tables. In Proceedings of the 6th International Conference on Information, Communications and Signal Pro

Scientific paper

Protecting the network layer from malicious attacks is an important and challenging security issue in mobile ad hoc networks (MANETs). In this paper, a security mechanism is proposed to defend against a cooperative gray hole attack on the well known AODV routing protocol in MANETs. A gray hole is a node that selectively drops and forwards data packets after it advertises itself as having the shortest path to the destination node in response to a route request message from a source node. The proposed mechanism does not apply any cryptographic primitives on the routing messages. Instead, it protects the network by detecting and reacting to malicious activities of any node. Simulation results show that the scheme has a significantly high detection rate with moderate network traffic overhead.

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