A Novel Scheme of Key Distribution Based on the Deployment Knowledge of WSN
Lin You · Chuangan jishu xuebao · 2011
By using Blom matrices,symmetric polynomial thresholds in prime fields and the irreversibility of hash chains,a novel hexagon-based key distribution scheme for wireless sensor networks is proposed.During the beginning of the node network deployment and pair-wise keys to be established,the distributed hash chain values are used to construct a number below the threshold Blom matrices and so as to generate pair-wise keys among the nodes in the same region.While among the neighboring nodes in the different regions,the polynomials constructed by randomly pre-distributed keys are employed to establish pair-wise keys.These designs make the security of the proposed key distribution scheme greatly improved and make enemies harder to break the network.Compared to both Kong' scheme and q-composite's scheme,our simulation results show that the proposed scheme has more efficiently improved the probability of pair-wise key establishment and invulnerability.