基于信任容错的Web服务可靠性增强方法研究  

Research of Web service reliability enhancement method based on trust fault tolerant

作　　者：杨墨[1] 王丽娜[1,2] 

机构地区：[1]武汉大学计算机学院,湖北武汉430072 [2]武汉大学空天信息安全与可信计算教育部重点实验室,湖北武汉430072

出　　处：《通信学报》2010年第9期131-138,共8页Journal on Communications

基　　金：国家自然基金可信软件重大研究计划项目(90718006);国家高技术研究发展计划("863"计划)基金资助项目(2009AA01Z442;2008AA01Z404);国家重点基础研究发展计划("973"计划)基金资助项目(2007CB310801)~~

摘　　要：提出了一种基于信任容错的Web服务可靠性增强方法,采用选举协议发现服务的隐式错误;设计了服务信任轮询检测机制;建立的信任机制度量提供者的可靠性;针对提供者的领域特点和请求者的可靠性需求设计信任感知的容错服务个数计算方法和冗余服务选择算法;实验验证该方法对恶意攻击具有较好抵御能力。A Web service reliability enhancement method based on trust fault tolerant was proposed.Non-evident errors are detected by using voting protocol.A service trust polling detection mechanism was designed.Trust mechanism was built to measure the reliability of the providers.A fault-tolerant-number calculating formula was deduced according to the characteristic of the required domain and the non-functional requirement and a fault tolerant services selection algorithm was proposed.Experiments show that this method has well resistance to malicious attacks.

关 键 词：容错 信任模型 选举协议 WEB服务 

分 类 号：TP302.8[自动化与计算机技术—计算机系统结构]