移动自组网是一种有特殊用途的对等式网络,具有无中心、自组织、可快速展开、可移动等特点。移动自组网络除了要达到传统有线网络中的安全目标外,还有自身特殊的安全需求,而它的特性又使之容易遭受各种攻击。为了更好地抵御行为异常节点对路由机制的干扰,在节点推荐的基础上提出了一种基于移动自组网络环境的信任模型,并给出了该模型的数学分析和分布式实现方法。分析及仿真表明,与现有的模型相比,该信任模型在安全性等问题上有较大改进。
Mobile ad hoc network is a special peer-to-peer network that is infrastructure-less,self-organizing and dynamical reconfiguration and mobile.Despite security targets of wireless network,MANET has not only its special security requirement,but also additional vulnerabilities and features pertinent to this networking paradigm.This paper presents a novel global trust model and gives a distributed implementation method.Mathematic analyses and simulations show that,compared to the current global trust model,the proposed model is more robust on trust security problems.