Key Management Scheme of Wireless Sensor Networks Based on Polynomial and Ring-Tree Network Topology

The article makes the improvement on the literature which is based on the ID key management according to the wireless sensing network's characteristic. With the ring-tree topology structure's foundation and the LEAP agreement, the article can use the multinomial and the hashing function to make the wireless sensing network's connectivity achieve to 1, and has certain improvement in the security and the network dynamic, moreover also realize the authentication between the nodes which based on the threshold secret sharing mechanism and the Feldman-VSS protocol on a certain extent.