Intra‐cluster key sharing in hierarchical sensor networks
Liu Ya‐nan, Wang Jian, He Du, Sha Li‐jun · IET Wireless Sensor Systems · 2013
In hierarchical sensor networks, key sharing at the intra‐cluster tier (i.e. how to establish pairwise keys between a sensor and its cluster head) is more challenging than that at inter‐cluster tier. Despite some key management protocols have been proposed, there still lacks both secure and efficient one. In this study, the authors proposed an intra‐cluster key sharing to overcome the security problems nowadays. The analysis proved that this proposed scheme has the following advantages by comparing with other schemes: (i) it is more efficient in saving the storage overheads and communication overheads; (ii) it improves the resilience against node capture attacks during and after initialisation; and (iii) it guarantees 100% connectivity at intra‐cluster communication tier.