Bivariate polynomials key management scheme for WSN
Yang Jia · Journal of Computer Applications · 2010
In a complex and unmanned Wireless Sensor Network(WSN) environment,the sensor nodes are vulnerable to attackers in the node capture attack.Based on symmetric polynomials of random key pre-distribution scheme,a safety mechanism was provided for the nodes communication,but this scheme has the issue of t threshold nature.In order to solve this issue,and to improve the anti-trapping capacity of the node,a secure key negotiation scheme was proposed using one-way function to process the value of the polynomial and a sound key distribution method was designed when a new node was added to the wireless sensor network.Analysis shows that in the base of security mechanisms of original scheme,the improved scheme can withstand conspiracy attack from attackers more effectively.