A Key Distribution Scheme for WSN Based on Deployment Knowledge and Dual-Key Pools
نویسندگان
چکیده
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.
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