Abstract:

Wireless sensor networks are usually used in sensitive environments, and security issue has become one of the challenges in sensor networks. Due to the resource constraint on sensor network nodes, whether sensor networks can maintain high connectivity and invulnerability becomes a huge challenge in sensor network security issues when sensor network nodes are captured. To address this issue, this paper proposes a pairwise key establishment scheme based on hypercube. The IDs of the nodes in sensor networks are coded by hypercube, and the key distribution center computes the bivariate polynomials with the ID of each node which are sent to each node. Performance analysis shows if there is no pairwise key between two nodes, the connectivity of pairwise key established by the path key method in the scheme is good, and the network has strong invulnerability, which greatly save the energy of sensor nodes.

Key words: wireless sensor network, hypercube, bivariate polynomial, pairwise key