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Securing Wireless Sensor Networks

Securing Wireless Sensor Networks. Cheyenne Hollow Horn SFS Presentation 2005. Presentation Outline. Wireless Sensor Networks (WSN) Security for WSN Implementation Conclusion. Wireless Sensor Networks. What is a WSN? Nodes Beacons Base Station. Wireless Sensor Networks. Applications

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Securing Wireless Sensor Networks

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  1. Securing Wireless Sensor Networks Cheyenne Hollow Horn SFS Presentation 2005

  2. Presentation Outline • Wireless Sensor Networks (WSN) • Security for WSN • Implementation • Conclusion

  3. Wireless Sensor Networks • What is a WSN? • Nodes • Beacons • Base Station

  4. Wireless Sensor Networks • Applications • Military • Medical • Advantages • Deployment • Disposability • Size

  5. Securing WSN • Requirements • Data Confidentiality • Data Authentication • Data Integrity • Data Freshness

  6. Sensor Network Encryption Protocol • Encryption keys • Semantic security • Counter used to encrypt message differently • Never repeats • Message Authentication Code

  7. Implementation • Time of Arrival method • Ultrasonic transducers • TinyOS • MatLab • MicaZ

  8. Ultrasonic Time of Arrival

  9. Sensor Field Layout Beacon Beacon Node Node Node Node Node Base Station Connected to PC Beacon

  10. MicaZ

  11. Conclusion • Setting up WSN • Implementing security

  12. Questions?

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