移动自组网的访问控制技术研究

网络资源的共享与保护是移动自组网需要解决的关键问题之一。运用Voronoi图模型和quorum系统的思想，提出了一种移动自组网的动态路径quorum系统，设计了动态路径quorum的生成算法。基于移动自组网的动态路径quorum系统，提出了基于quorum系统的移动自组网的分布式访问控制机制，详细描述了节点的身份认证、网络资源的访问控制和权限管理协议。与传统的基于单个节点自身的访问控制机制相比，该访问控制机制具有较强的抗攻击能力和较高的可靠性，能够有效地提高移动自组网的资源共享与保护水平。

Research on Access Control Technology on Mobile Ad-hoc Networks

Resources share and protection are one of key problems needed to solve on mobile ad-hoc networks (MANET).A dynamic paths quorum system on MANET was proposed by making use of the model of voronoi diagram and the idea of quorum system. The construction algorithm of dynamic paths quorum was designed. Based on the dynamic paths quorum system on MANET, a distributed access control mechanism was given and the protocols, such as node authentication, network resources authorization and rights management, were described in detail. Compared with traditional access control mechanism grounded on single node in MANET, the distributed access control mechanism grounded on more nodes, i. e. a quorum nodes, has higher availability and greater capability to withstand attack. It can improve the level of resources share and protection on MANET observably.