基于认知无线电的容迟网络非交互密钥协商  

Non-interactive key exchange based on cognitive radio in delay tolerant network

作　　者：孙丽艳[1] 周健[1,2] 

机构地区：[1]安徽财经大学信息工程学院,安徽蚌埠233041 [2]北京科技大学信息工程学院,北京100081

出　　处：《计算机应用》2010年第9期2404-2407,2504,共5页journal of Computer Applications

基　　金：安徽省高等学校自然科学研究基金资助项目(KJ2009B127Z);安徽省高校优秀青年人才基金资助项目(2009SQRZ084)

摘　　要：容迟网络的通信具有机会性,且传输时间受到严格限制。如果将传统的密钥交互协议应用于容迟网络中,将会导致传输效率的下降,这是因为节点的身份识别和共享密钥的协商需要节点间的多次交互。针对这一问题,提出一种基于认知无线电的非交互式的共享密钥协商方案(CRNIKES),节点通过频谱识别身份和双线性对技术协商共享密钥,使得网络在无需交互的情况下便可协商共享密钥,其协商效率为O(TC),TC为频谱感知时间。由于TC为常量,且与网络规模无关,因此共享密钥协商具有较高的执行效率且适用于容迟网络。The communication is opportunistic in delay-tolerant network, and the nodes spend limited time in sending data. The network performance will become worse, if the current protocols on key exchange are applied to secure the channel. The reason is that there are multiple interactions for getting node identity and key material among nodes. To solve the problem, the authors put forward a new scheme — non-interactive key exchange scheme based on cognitive radio （ CRNIKES） . Nodes consulted the shared key with the technologies of identification based on spectrum and the bilinear pairing without interaction in networks. The efficiency of scheme is O（ TC） , and the TC is the time for spectrum cognitive. Since the TC is constant and the efficiency is independent of the size of network, this scheme is efficient and adapts to the delay-tolerant network.

关 键 词：认知无线电 容迟网络 频谱 密钥交换 安全 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]