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

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Presentation transcript:

25 April Securing Wireless Sensor Networks Cheyenne Hollow Horn SFS Presentation 2005

25 April Presentation Outline Wireless Sensor Networks (WSN) Security for WSN Implementation Conclusion

25 April Wireless Sensor Networks What is a WSN? –Nodes –Beacons –Base Station

25 April Wireless Sensor Networks Applications –Military –Medical Advantages –Deployment –Disposability –Size

25 April Securing WSN Requirements –Data Confidentiality –Data Authentication –Data Integrity –Data Freshness

25 April Sensor Network Encryption Protocol Encryption keys Semantic security –Counter used to encrypt message differently –Never repeats Message Authentication Code

25 April Implementation Time of Arrival method Ultrasonic transducers TinyOS MatLab MicaZ

25 April Ultrasonic Time of Arrival

25 April Base Station Connected to PC Beacon Node Sensor Field Layout Beacon

25 April MicaZ

25 April Conclusion Setting up WSN Implementing security

25 April Questions?