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《Journal on Communications》 2009-03
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Lite-CA based key pre-distribution scheme in wireless sensor network

PAN Yun1, WANG Li-cheng2, CAO Zhen-fu3, LI Jian2(1.School of Computer, Communication University of China, Beijing 100024, China;2.Center of Information Security, Beijing University of Posts and Telecommunications, Beijing 100876, China;3.Laboratory of Trusted Digital Technology, Shanghai Jiaotong University, Shanghai 200240, China)  
Large-scale sensor nodes were usually deployed in potentially adverse or even hostile environment, so the security in these networks was very important.Due to its constraints on node cost, size and power dissipation, sensor's energy and capabilities on computation, storage and communication were considerably weak compared with general computers.It leaded to many new challenges for designing of key management protocols in WSN.Therefore, a lite-CA based key pre-distribution scheme was suggested.The traits of CA-based authentication framework and identity-based authentication framework were combined by this scheme.Further, the scheme was efficiently implemented based on quadratic residue theory.
【Fund】: 国家重点基础研究发展计划(“973”计划)基金资助项目(2007CB310704);; 国家自然科学基金资助项目(90718001);; 中国传媒大学“211”工程基金资助项目~~
【CateGory Index】: TP212.9;TN918.82
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