摘要
Resilience against node capture is one of the main indicators of the key pre-distribution security in sensor networks.On providing the attack model and the definition of the resilience against node capture of sensor networks,the resilience of basic random key pre-distribution,Q-composite random key pre-distribution and their reinforced schemes are analyzed and compared in depth.Research results show that the size of key pool,the numbers of the keys stored in nodes and the value of Q determine the resilience of random key pre-distribution.The tradeoff between the resilience,security connectivity and costs in sensor networks is presented.These researches lay a foundation on the design of the secure protocol and the algorithm in the specific application environment of sensor networks.
Resilience against node capture is one of the main indicators of the key pre-distribution security in sensor networks. On providing the attack model and the definition of the resilience against node capture of sensor networks, the resilience of basic random key pre-distribution, Q-composite random key pre-distribution and their reinforced schemes are analyzed and compared in depth. Research results show that the size of key pool, the numbers of the keys stored in nodes and the value of Q determine the resilience of random key pre-distribution. The tradeoff between the resilience, security connectivity and costs in sensor networks is presented. These researches lay a foundation on the design of the secure protocol and the algorithm in the specific application environment of sensor networks.
基金
Supported by Educational Innovation Fund for Graduates of Xidian University (Program No05006)
Natural Science Basic Research Plan in Shaanxi Province of China(Program No2005F28)
Xi'an Key Technologies R&D Program(GG06017)
