Key Management Scheme for WSN Based on Symmetric Bivariate Polynomial
LI Ji-guo · Jisuanji gongcheng · 2010
LEAP scheme has a disadvantage that during key establishment phase,due to a sensor node is captured,the security of the other sensor nodes in the whole network is threatened.This paper proposes a key management scheme for Wireless Sensor Network(WSN) based on symmetric bivariate polynomial.The proposed scheme not only overcomes the defect in LEAP scheme but also has some advantage that well prevents capture capacity,resists conspiracy attack and Hello Message attack.Compared with LEAP scheme,the scheme has the same storage and communication cost and has a little higher computation cost.