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Intrusion Detection System for Wireless Sensor Networks: Design, Implementation and Evaluation

Intrusion Detection System for Wireless Sensor Networks: Design, Implementation and Evaluation. Dr. Huirong Fu. Outline. Overview of Wireless Sensor Network (WSN) Project Objective: how to detect attacks on WSN? Project Tasks: Intrusion detection system More Information. UnCoRe 2007.

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Intrusion Detection System for Wireless Sensor Networks: Design, Implementation and Evaluation

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  1. Intrusion Detection System for Wireless Sensor Networks: Design, Implementation and Evaluation Dr. Huirong Fu

  2. Outline • Overview of Wireless Sensor Network (WSN) • Project Objective: • how to detect attacks on WSN? • Project Tasks: • Intrusion detection system • More Information UnCoRe 2007

  3. WSN Overview Applications of WSNs Components of a Sensor WSN Communication Models Attacks on WSN UnCoRe 2007 3

  4. Overview: Applications of WSNs Military Disaster Detection and Relief Industry Agriculture Environmental Monitoring Intelligent Buildings Health/Medical Law Enforcement Transportation Space Exploration UnCoRe 2007 4

  5. Overview: Components of a Sensor Sensing Unit Processing Unit Storage Unit Power Unit Wireless Transmitter/Receiver UnCoRe 2007 5

  6. Overview: Communication Models Hierarchical WSN Sensor Nodes Cluster Nodes Base Stations Distributed WSN UnCoRe 2007 6

  7. DoS, DDoS attacks which affect network availability Eavesdropping, sniffing which can threaten confidential data Man-in-the-middle attacks which can affect packet integrity Signal jamming which affects communication Overview: Attacks on WSN (1/3) UnCoRe 2007

  8. Overview: Attacks on WSN (2/3) UnCoRe 2007

  9. Overview: Attacks on WSN (3/3) UnCoRe 2007

  10. Project Objective • How to detect attacks on WSN? • Intrusion Detection System (IDS): Design, implementation and evaluation UnCoRe 2007

  11. Project Tasks • Literature survey on IDS for WSN • What have been proposed? • Have they been implemented and evaluated? • What are the Pros and Cons of each? UnCoRe 2007

  12. Project Tasks • Make decision • Shall we extend some of the works, or • Design a novel IDS? • Design, implementation and evaluation • What are the requirements for an ideal IDS? • What are the challenges? • What are the hardware and software available? UnCoRe 2007

  13. Existing security measures • 2Intrusion detection based on AODV (Ad hoc On-Demand Distance Vector Routing Protocol) • Pros • Sophisticated algorithm for detecting and reacting to a great variety of potential wireless network attacks using an anomaly detection pattern • Works well for ad-hoc wireless networks • Cons • Computationally expensive • Currently not deployed on wireless sensor networks UnCoRe 2007

  14. Existing security measures • 4Effective Intrusion Detection using Multiple Sensors in Wireless Ad Hoc Networks • Pros • Mobile agent based intrusion detection • Intelligent routing of intrusion data throughout the network • Lightweight implementation • Cons • Agent only deployed on a fraction of the network nodes • Not deployed on completely wireless sensor networks UnCoRe 2007

  15. Existing security measures • 3INSENS (Intrusion Tolerant Routing Protocol for Wireless Sensor Networks) • Pros • Allows an alternative network route to be established between non-malicious nodes • Cons • Does not provide intrusion detection, but rather intrusion tolerance • Still requires the sacrifice of a small number of wireless sensor nodes UnCoRe 2007

  16. Our IDS System • Uses Motelv’s TMote wireless sensors. • Developed using MoteIv’s proprietary software--TMote Tools • Cygwin • Java • TinyOS programming language • Enhanced with a plug-in for the Eclipse IDE for programming and compiling the TinyOS modules UnCoRe 2007

  17. IDS Wireless Sensor Setup UnCoRe 2007

  18. Our IDS System Design • Uses anomaly detection pattern • Establishes a baseline of “normal” traffic between wireless sensor nodes over a specified time interval • Compares current traffic against this baseline traffic over the same specified time interval • Makes a determination as to whether or not a DoS attack is occurring UnCoRe 2007

  19. Communication between wireless sensor nodes Activity diagram for Wireless Sensor Node communication Our IDS System Design UnCoRe 2007

  20. Emulation of a DoS attack Activity design for Emulation of a DoS attack Our IDS System Design cont’d UnCoRe 2007

  21. References • 1Denial of Service in Sensor Networks • 2Wireless Sensor Networks for Intrusion Detection: Packet Traffic Modeling • 3INSENS: Intrusion-Tolerant Routing in Wireless Sensor Networks • 4Effective Intrusion Detection Using Multiple Sensors in Wireless Ad Hoc Networks UnCoRe 2007

  22. References • MoteIv • http://www.moteiv.com/community/Moteiv_Community • TMote Tutorial • http://cents.cs.berkeley.edu/tinywiki/index.php/Tmote_Windows_install • TinyOS • http://www.tinyos.net/tinyos-1.x/doc/tutorial/index.html UnCoRe 2007

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