贝叶斯预测下的域间路由信任机制  

A trusted inter-domain routing protocol based on Bayesian estimation theory

作　　者：王伟[1] 杨本朝[1] 吴涛[2] 

机构地区：[1]信息工程大学数学工程与先进计算国家重点实验室,河南郑州450002 [2]安徽大学数学科学学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2014年第4期33-36,共4页Journal of Anhui University(Natural Science Edition)

基　　金：国家973计划资助项目(2012CB315905)

摘　　要：由于BGP(border gateway protocol)协议在设计之初没有考虑协议本身的安全性,导致目前BGP协议遭受来自网络的各种攻击,严重影响着互联网的安全.根据社会实体间的信任关系,把信任引入域间自治系统中,将各自治系统(autonomous system,简称AS)作为一个实体,各AS根据与邻居AS的历史交互数据,由贝叶斯估计理论对邻居AS下一次表现好坏给出一个度量——节点信任度,并由节点信任度定义的路径信任度作为一个新的BGP选路标准.最后试验表明,扩展后的BGP(new-border gateway protocol,简称N-BGP)协议能够有效地抑制虚假路由的传播.Since BGP protocol was not considered in the design of the security agreement at the beginning, this led to the various attacks that BGP protocol suffered from the network and Internet’s security was influenced deeply. In the article, the author according to social relations of trust between entities, each of the autonomous system （AS） was seen as an entity. The AS according to the historical performance of its neighbor, Bayesian estimation theory was used to give a measure of the neighbor AS’ performance next time-trust. The trust was added into BGP routing policy as a new attribute. Finally, tests showed that the extended BGP（N-BGP） protocol can inhibit the spread of false routes effectively.

关 键 词：域间路由 BGP 贝叶斯估计 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]