A secure communication protocol for ad-hoc wireless sensor networks

Security in wireless sensor networks is required for trust in the collected data; however, resource limitations have made the security need of secondary importance. The paper proposes a new application-layer SPKI/SDSI (simple public key infrastructure/simple distributed security infrastructure) protocol that provides secure communications, authentication and fast re-authentication. The protocol has been formally proven secure and results indicate the protocol to be suitable for wireless sensor networks.