PWKEP: A Pair-Wise Key Establishment Protocol for Sensor Networks Providing Provable Security

The establishment of pair-wise key between two nodes in wireless sensor network is a big challenge. We propose a protocol PWKEP including three contributions: 1) Achieve secure key exchange protocol with mutual authentication. 2) Propose a modular approach for design of secure authenticated key exchange protocols. 3) Adopt elliptic curve Diffie-Hellman key exchange and argue reasonable energy consumption on sensor device MICA2DOT. Moreover, we provide PWKEP provable security under BCK model.