A Secure Position-Based Protocol Framework for Multi-hop Ad-Hoc Networks

We present a secure position-based protocol framework, S-CORE, for ad-hoc networks. S-CORE consist of a se- cure hello protocol and a secure greedy forwarding protocol ( SecFwd). The secure hello protocol helps nodes establish a neighbor table free of malicious nodes, defends against ID-spoofing, position-spoofing, and black lists malicious nodes. To detect position-spoofing, nodes use a new dis- tributed position verification algorithm that uses a position- bounding technique. SecFwd mitigates forwarding mis- behaviors and insures proper execution of greedy forward- ing. We present a security analysis of S-CORE and results from an extensive simulation study using GloMoSim. Our simulation results show that S-CORE detects misbehaving nodes to a high degree with a fewer number of false accu- sations.