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Routing Security in Wireless Ad Hoc Networks

Explore the challenges and solutions for securing routing in mobile ad hoc networks, including defense against black hole attacks and optimizing packet forwarding. Learn about the NS-2 network simulator for research.

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Routing Security in Wireless Ad Hoc Networks

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  1. Routing Security in Wireless Ad Hoc Networks Chris Zingraf, Charisse Scott, Eileen Hindmon

  2. Mobile ad hoc Network • Collection of wireless mobile nodes • Communicate without network infrastructure • or centralized administration • Offers unrestricted mobility and connectivity • Each node acts as host and router • Out-of-range nodes are routed through intermediate nodes

  3. Wireless MANET • Security with Network • open medium • dynamic topology • distributed cooperation • constrained capability • Routing Security • “black hole” attack

  4. “black hole” Attack Black hole attacks work by tricking other nodes in the network about their routing information.

  5. Proposed Solutions • She, Yi, Wang, Yang – July 2013 • Each node only monitors the next hop • Packet forwarded—good node! • Too many packets “dropped”— bad node!

  6. Proposed Solutions • High collision rates can make it hard to “overhear” packet forwarding – false positives! • Algorithm adapts a “threshold” to fix this • Problem: threshold lowers under high network load → lower detection • rate → susceptible to DDoS? • How to maintain detection rate, even at high network load?

  7. Our Solution • Another (unimplemented) solution: “Optimal Path” • Discard the first and select the second shortest path • Difficult for a black hole to determine how to make itself “second-best” • By itself, would slow down network • Perhaps as a rollover?

  8. ns-2 Network Simulator • Ns is a discrete event simulator targeted at networking research. • Ns provides substantial support for simulation of TCP, routing, and multicast protocols over wired and wireless (local and satellite) networks. http://nsnam.isi.edu/nsnam/index.php/User_Information

  9. References • http://nsnam.isi.edu/nsnam/index.php/User_Information • http://www.csee.umbc.edu/~wenjia1/699_report.pdf • http://web.mst.edu/~bckd2/CpE349/project/routing%20security%20in%20wireless%20adhoc.pdf • http://www.cs.fsu.edu/~levan/papers/Security%20Issues%20of%20Mobile%20Ad%20hoc%20Networks%20(SPRINGER05).pdf • https://www.cs.tcd.ie/hitesh.tewari/papers/netsec00_manet_sec.pdf • http://en.wikipedia.org/wiki/Mobile_ad_hoc_network

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