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中文摘要：
针对无线传感器网络存储空间和带宽等局限性问题,提出了一种有效的无线传感器网络密钥管理方案.该方案采用椭圆曲线的双线性对加密技术对节点的身份进行认证,通过验证节点的合法性来抵抗非法节点的攻击.理论分析与仿真结果表明：当网络节点数为10～60时,节点存储密钥数只有2～12;节点之间能相互验证密钥的有效性,可以抵抗假冒、重放和伪造等攻击.该方案在增强网络安全性的同时有效地减少了节点的密钥空间需求.
英文摘要：
In views of the limitation of storage resources and bandwidth of wireless sensor networks,an efficient key management scheme for heterogeneous sensor networks is proposed.In the scheme,the identity of nodes can be authenticated using bilinear pairing cryptography over an elliptic curve,and the attacks of the illegal nodes can be resisted by verifying the legitimacy of the nodes.Theoretic studies and figures of simulation show that when there exists communication between the nodes,the nodes set-up share the secret keys,so the number of node＇s keys is only 2 to 12 when the number of the nodes is 10 to 60,and the efficiency of keys can be authenticated,so a number of attacks including masquerade,reply and message manipulation attacks can be resisted.The new scheme can not only increase the security,but also decrease the nodes storage cost.
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