A Key Distribution Scheme for WSN Based on Deployment Knowledge and Dual-Key Pools
Lin You, Younan Yuan · International Journal of Security and Its Applications · 2014
By using deployment Knowledge and cellular model, a novel key distribution scheme based on deployment and dual-key pools is proposed for WSN.Each sub-key pool in the network contains two types of key pools: one doubled by the offline server is shared by three adjacent cells before the deployment and the other one distributed to each cell is non-overlapping.The server distributes four random numbers for each cell and ensures each adjacent cell sharing one random number.In order to improve the network security, nodes among the neighboring cells adopt a binary hash function and a corresponding random number to generate pair-wise keys.Compared with Du scheme and q-composite scheme, the simulation results show that our proposed scheme not only has efficiently improved the probability of pair-wise key establishment and invulnerability, but also has certain advantage on the nodes' storage space.