一种适用于大规模移动自组网的密钥管理方案  

Key Management Scheme Suitable for Large-scale MANET

作　　者：施荣华[1] 艾青松[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《小型微型计算机系统》2010年第7期1311-1314,共4页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(60773013)资助;湖南省自然科学基金项目(07JJ5078)资助

摘　　要：在移动自组网中当节点数增加时,网络的组成难度、可用性、安全性都会受到极大的影响.针对大规模移动自组网的扩展性需要,提出一种环形CA的密钥管理模型.方案采用传统的门限签名密码体制,CA只与相邻的其它两个CA进行交叉认证,从而减少了交叉认证次数,降低了通信和计算开销,CA之间是绝对信任链关系,有效的防止了恶意签名,同时具有很好的扩展性和鲁棒性,更好的适用于大规模移动自组网.In mobile ad-hoc networks（MANET）,when the number of nodes increase,the difficulty of building network,network availability and network security will be influenced badly.A new key management which based on the ring CA trust model has been proposed to solve the scalability of large scale MANET.It use traditional threshold digital signature scheme,and the CA only has cross authentication with its adjacent other two CA,thereby reducing the number of cross authentication and the overhead of communication and computation,between the CA is absolute trust chain,and effective to prevent the malicious signature.At the same time it has a good scalability and robustness,better applied to large scale MANET.

关 键 词：AD HOC网络 环形信任模型 绝对信任 门限方案 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]