INI Seminar: Rajeev Gandhi

Time: March 20, 2009 - 2:30 PM - 3:50 PM

Location: DEC@CIC

Description:

Dr. Rajeev Gandhi presents Secure Network Reprogramming in Wireless Sensor Networks.

The INI Seminar takes place every Friday, 2:30 - 3:50 p.m., at the Distributed Education Classroom at the Collaborative Innovation Center (DEC@CIC).

Speaker: Rajeev Gandhi

Talk Abstract:

Wireless sensor networks are typically long-lived, large scale and often deeply embedded into existing infrastructures. In many cases, it might be necessary to update the sensor application to fix bugs or to add new functionality. Network reprogramming (or code update) protocols have recently emerged as a way to distribute program updates remotely without requiring manual intervention or physical access to sensor-nodes.

The current network reprogramming protocols do not restrict the origin of an update and an adversary who is merely able to inject packets into the network can inject a malicious update into the system. Given the epidemic nature of network reprogramming protocols, an adversary can gain complete control over the entire sensor network by compromising just a single node, and then subsequently leveraging the network reprogramming mechanism to distribute/install the malicious code on every reachable node in the system.

In this talk, I will describe several extensions to existing network reprogramming protocols that provide a number of security guarantees, including the prevention of malicious nodes from propagating, or installing malicious updates on uncompromised nodes within the system.

Speaker Bio: Rajeev Gandhi is a Systems Engineer with the Electrical and Computer Engineering Department and an INI faculty. His research focuses on wireless sensor networks, and diagnosing performance problems in large distributed systems.