Abstract: Focusing on the nodes authentication problem of clustered wireless sensor network, the paper proposes a lightweight authentication and key negotiation scheme using hash function and exclusive or (XOR) operation. The anonymity mechanism is introduced into the authentication process, which can thwart the traffic analysis attacks, and protect the privacy of nodes. In addition, by analyzing and comparing the anti-attack performance and the resource overhead of the authentication scheme, the results show that the proposed scheme can provide good authentication and also have a lower overhead at the cost of computation, storage and communication.

Key words: clustered wireless sensor network, authentication, key negotiation, anonymity