WSN中基于非双线性对的无证书群组密钥协商协议  

Pairing-free Certificateless Group Key Agreement Protocol for Wireless Sensor Network

作　　者：钱琦锋 程春玲[1] 

机构地区：[1]南京邮电大学计算机学院,南京210003

出　　处：《计算机科学》2015年第7期186-190,共5页Computer Science

摘　　要：针对无线传感网(Wireless Sensor Network,WSN)群组密钥协商协议计算开销较大的问题,提出一种基于非双线性对的无证书群组密钥协商协议。在系统初始化阶段,协议通过无证书加密体制的密钥生成中心生成节点部分私钥,各个节点依据秘密值与对应的部分密钥相乘产生私钥;在节点认证阶段,协议基于椭圆曲线上的点乘运算提出节点认证机制,利用节点的部分私钥与具有身份信息的临时公钥进行点乘运算来确定节点的身份信息;在生成会话密钥阶段,通过点乘运算生成会话密钥,以降低节点的计算开销。最后,分析了协议的计算开销和通信开销。结果表明,所提出的群组密钥协商协议能保证群组节点通信的安全性,并有效降低群组节点通信的计算开销。Due to the high computational overhead of group key agreement protocol in wireless sensor network（WSN）,this paper presented a pairing-free certificateless group key agreement protocol.During system initialization phase,the partial private key is generated by key generation center of the certificateless public key cryptography.Each node generates private key via multiplying secret value by corresponding partial private key.During node authentication phase,this protocol introduces node authentication mechanism based on scalar multiplication of elliptic curves,determining the nodes identity information by calculating scalar multiplication of partial private key and temporary public key with authentication information.During session key generation phase,session key is generated by utilizing scalar multiplication to reduce the computational overhead.Finally,we analyzed computational overhead and communication cost.The results show that this protocol can not only ensure security of node communication,but also reduce computational overhead.

关 键 词：无线传感网 群组密钥协商 非双线性对 无证书 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]