Detail

Techniques for Securing Sensor Networks

The low-cost, off-the-shelf hardware components in unshielded
sensor-network nodes leave them vulnerable to compromise. With
little effort, an adversary may capture nodes, analyze and
replicate them, and surreptitiously insert these replicas at
strategic locations within the network. We propose two new
algorithms, Randomized Multicast and Line-Selected Multicast,
based on emergent properties to defend against these attacks.
We also leverage these techniques to design, implement, and
evaluate a new secure routing protocol for sensor networks.
Our protocol requires no special hardware and provides message
delivery even in an environment with active adversaries. We
adopt a clean-slate approach and design a new sensor network
routing protocol with security and efficiency as central
design parameters. As a result, our protocol is efficient yet
highly resilient to active attacks.