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 security becomes a crucial issue in wireless sensor networks (WSNs). There are various security services in WSNs such as key management, authentication, and pairwise key establishment. Due to some limitations on sensor nodes, the previous key establishment techniques are unsuitable for WSNs. To overcome these problems, researchers propose several key pre-distribution schemes. Our proposed approach uses a combinatorial framework in the hypercube-based (HB) scheme to pre-distribute keys to each sensor node. By this way, the number of common keys between two nodes in a wireless communication range increases. Therefore, the level of security in terms of resilience against node capture attack and the probability of re-establishing an indirect key will be improved.