Secure Mechanism for Wireless Sensor Networks Using Keylock Matching

Ensuring the security of communication and access control in Wireless Sensor Networks (shortly WSNs) is of paramount importance. In this paper, I present a security mechanism, MoteSec Aware, built on the network layer for WSNs with focus on secure network protocol and data access control. In the secure network protocol of MoteSec Aware, a Virtual Counter Manager (shortly VCM) with a synchronized incremental counter is presented to detect the replay and jamming attacks based on the symmetric key cryptography using AES in OCB mode. For access control, I investigate the Key-Lock Matching (Shortly KLM) method to prevent unauthorized access. I implement MoteSec-Aware for the TelosB prototype sensor platform running Tiny OS version 1.1.15, and conduct field experiments and TOSSIM-based simulations to evaluate the performance of MoteSec Aware. The results demonstrate that MoteSec Aware consumes much less energy, yet achieves higher security than several state of the art methods.