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Implementation of Secure Cluster Formation and Key Distribution Protocol for Biosensors. Krishna Venkatasubramanian (993-65-5945) CSE 591. Biosensors. Biosensors are sensor nodes placed within the human body for monitoring purposes and collect real-time data about the body.

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implementation of secure cluster formation and key distribution protocol for biosensors

Implementation of Secure Cluster Formation and Key Distribution Protocol for Biosensors

Krishna Venkatasubramanian

(993-65-5945)

CSE 591

biosensors
Biosensors
  • Biosensors are sensor nodes placed within the human body for monitoring purposes and collect real-time data about the body.
  • Biosensors monitor: heart rate, blood glucose, temperature and so on.
  • Other uses of biosensors: controlled drug release, prosthetics, human/animal tracking.
project goals
Project Goals
  • To implement, a secure cluster formation and key exchange protocol for biosensor networks, on Mica2 motes running on TinyOS[2] operating system.
traditional cluster formation
Traditional Cluster Formation
  • Cluster is one of the topologies used for minimizing communication costs.
  • Clusters formed based on cluster head solicitation beacon strength.
  • Traditional cluster formation protocols (LEACH) [3] can lead to sinkhole [4] formation.
  • Security lapse because of lack of shared secret between cluster head and the cluster member nodes.
secure cluster formation
Secure Cluster Formation
  • Idea is to use sensor member nodes to send solicitation beacon.
  • The designated cluster heads (CH) forward this beacon to the base station along with received signal strength.
  • Base station decides which node will be part of which cluster.
  • Uses biometrics to authenticate sensor nodes to cluster head.
advantages of this scheme
Advantages of this scheme
  • The base station can distribute any control information( keys, MAC schedule etc.) to nodes while forming clusters.
  • Avoids sink-hole formation completely by involving base station in the formation of clusters.
  • More energy-efficient: as it allows key distribution along with cluster formation in one step.
key distribution
Key Distribution
  • Keys essential for encryption of data being transmitted to base station.
  • Base station manages all keys.
  • Keys assigned to nodes based on attributes (location, sensor type) of nodes.
  • Attribute Based Keying (ABK) allows secure data centric addressing.
implementation
Implementation
  • To implement the protocol we will use the Mica2 motes[1] designed at UC Berkeley and manufactured by Crossbow Inc.
  • Aim is to implement the protocol in actual sensors and assess the efficiency and security of the protocol.
timeline
Timeline
  • The following is the timeline for this project and some of the important dates:
references
References
  • [1] http://www.crossbow.com
  • [2] http://www.tinyos.net
  • [3] Wendi Heinzelman, Anantha Chandrakasan, and Hari Balakrishnan, Energy-Efficient Communication Protocols for Wireless Microsensor Networks, Proc. Hawaaian Int'l Conf. on Systems Science, January 2000. 
  • [4] Chris Karlof and David Wagner, Secure Routing in Wireless Sensor Networks: Attacks and Countermeasures, First IEEE International Workshop on Sensor Network Protocols and Applications, pages 113-127, May 2003.