A Key Agreement Scheme Based on Bilinear Pairing for Wireless Sensor Network

Considering the problem of inadequate security in wireless sensor networks. The paper proposes a new key agreement scheme based on bilinear pairing for wireless sensor network. Firstly, the proposed scheme pre-distributes network system parameters using ID-based encryption algorithm and computes nodes´ parameters on Bilinear Pairings. Then it broadcasts to networks and exchange parameters between nodes and computes nodes´ key using Diffie-Hellman key exchange technology. Analyses show that the proposed scheme which is more efficient than the previous LZC scheme and Shim-Woo scheme, also the proposed scheme satisfies all the required security attributes :implicit key authentication ,known-key security, perfect forward secrecy, key-compromise impersonation resilience and Unknown key security.