Security key pre-distribution scheme for wireless sensor networks
Lin Jipo · Journal of Computer Applications · 2013
Key management is the core security issue in Wireless Sensor Network(WSN).Based on bivariate symmetric polynomials of random key pre-distribution scheme,a safety mechanism was provided for the nodes communication;however,it has the t-security problem and vulnerable to the node capture attack.In order to well solve this problem,and to improve the safety threshold value of network and node ability of anti-trapping,the authors used the convertible ternary polynomial instead of binary polynomial to establish inter-node communication and introduce the key distribution node to do key distribution of the cluster network.The new scheme improved the network anti-trapping ability.Moreover,decoding the sensor node key became almost impossible because of the use of the one-way Hash function.The analytical results show that this scheme has higher anti-destruction ability,scalability and security,and also reduces the overhead of storage and computation among common sensor nodes.