基于信任保留的移动Ad Hoc网络安全路由协议TPSRP  

Mobile Ad Hoc Secure Routing Protocol Based on Trust Preserving

作　　者：付才[1] 洪帆[1] 洪亮[2] 彭冰[1] 崔永泉[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,武汉430074 [2]西北工业大学自动化学院,西安710072

出　　处：《计算机学报》2007年第10期1853-1864,共12页Chinese Journal of Computers

基　　金：国家自然科学基金(60403027)资助.~~

摘　　要：Ad Hoc网络的移动特性是安全路由中不能忽略的一个重要因素.在一个频繁变化甚至高速移动的网络中,目前大部分安全路由协议难以完成可信通信方的认证,从而无法建立起安全的路由通道.这是由于认证过程是一个连续的消息交互过程,移动特性使得这个连续交互无法保证.文中在链路状态路由协议OLSR的基础上提出了基于信任保留的安全路由协议TPSRP,该协议采用信任保留的方式对节点进行认证,解决高速移动网络中节点认证问题.TPSRP还针对目前信任评估方法缺少有效的自适应性提出了一种新的信任评估手段,使得节点可以通过综合的信任信息,自我辨别并限制内部背叛节点的恶意行为,同时有效地检测与抵抗Ad Hoc网络中的协作攻击,如虫洞攻击等.最后的仿真显示,在网络移动特性增强的情况下,TPSRP的认证性能要优于传统认证协议,并能够有效孤立攻击节点.Moving characteristic is a important factor in secure routing for Ad Hoc networks. Most secure routing protocols are difficult to finish the authenticating processing and can＇t set up the secure routing in a mutative and high speed moving network because authenticating is a con- tinuous processing for messages exchanging and the moving characteristic canrt ensure the conti- nuity. This paper proposes the trust preserving based secure routing protocol based on OLSR, the trust preserving method is adopted to accomplish the authenticating and resolve the high speed moving authenticating problem, which is proved with the formal language. Aiming at the low flexibility of most trust evaluating system, a novely evaluating system is proposed, by which the nodes get the trust information, identify and limit the vicious nodes, at the same time, it can resist the associated attacks, such as worm-hole attack. The simulations shows that in a high speed moving network, The TPSRP＇s authenticating performance is more better than that of the traditional and can isolate the attacking nodes effectively.

关 键 词：AD HOC网络 安全路由 信任评估 身份认证 移动特性 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]