Hypercube Bivariate-Based Key Management for Wireless Sensor Networks

Wireless sensor networks are composed of very small devices, called sensor nodes,for numerous applications in the environment. In adversarial environments, the securitybecomes a crucial issue in wireless sensor networks (WSNs). There are various securityservices in WSNs such as key management, authentication, and pairwise keyestablishment. Due to some limitations on sensor nodes, the previous key establishmenttechniques are unsuitable for WSNs. To overcome these problems, researchers proposeseveral key pre-distribution schemes. Our proposed approach uses a combinatorialframework in the hypercube-based (HB) scheme to pre-distribute keys to each sensornode. By this way, the number of common keys between two nodes in a wirelesscommunication range increases. Therefore, the level of security in terms of resilienceagainst node capture attack and the probability of re-establishing an indirect key will beimproved.