Key Distribution Algorithm Analysis in Wireless Sensor Network
HE Meng-yun · Computer Technology and Development · 2010
Based on the existing security problems in wireless sensor networks,present some of the existing key distribution algorithms in wireless sensor networks: a random key pre-distribution scheme,q-composite,symmetric key,new random key algorithm.On this basis,analysie the characteristics of the capture of resistance,network connectivity,scalability and memory overhead of these algorithms,and point out their problems.The novel random key algorithm has advantage in good network connectivity,small memory overhead and enhanced resistance against capture,but it also has disadvantage: message is transferred with plaintext in the process to establish key,so it is easy to eavesdrop attack.Propose that make use of share key to encrypt the communication of nodes in the process to establish key,then the share key is automatically erased.