适用于大规模群组Ad hoc网络的组密钥管理方案  

Group key management scheme for large mobile Ad hoc network

作　　者：曹帅[1] 张串绒[1] 宋程远[1] 

机构地区：[1]空军工程大学电讯工程学院,西安710077

出　　处：《计算机应用研究》2012年第4期1420-1423,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(60873233)

摘　　要：提出一种适于大规模群组Ad hoc网络的组密钥管理方案。该方案基于地理位置建立了分层分组的网络模型,将大部分消息的传输距离限制在一个小组范围内,降低了通信开销,结合密钥分发和密钥协商的各自优点来生成、分发和更新组密钥,在避免单点失效的同时提高了效率;同时,椭圆曲线上的离散对数难题保证了方案的安全性。分析表明方案具有较强的可用性。This paper proposed a new hierarchical group key management scheme for large Ad hoc network.In the scheme,divided group based on geographical location into several sub-groups,that reduced communication overhead for limiting message transmission distance within a sub-group.It adopted the combination of key agreement and distribution to generate,distribute and update group key,that made it avoid single point of failure while improving efficiency.Based security of the scheme on solving elliptic curve discrete logarithm problem.Through analysis,the scheme provides higher availability.

关 键 词：Ad HOC网络 大规模群组 组密钥管理 密钥协商 密钥分发 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]