计算机应用研究2011，Vol.28Issue(7)：2497-2501,5.DOI:10.3969/j.issn.1001-3695.2011.07.027
可信网络中一种敏感鲁棒的信任计算模型
Sensitive and robust model of trust computation in trusted networks
摘要
Abstract
This paper proposed a sensitive and robust trust computation model. At the stage for lack of direct transaction proofs,estimated an initial trust value based on recommendation trust or reputation. With the construction of new transactions and their accumulation,calculated trust by combining of the initial value and new transaction proofs,then transferred to the di-rect trust computation model,at last. It adopted a balancing coefficient to weaken risks in estimating initial trust values,and re-stricted them within limited initial transactions. At the same time, strengthened the contribution of proofs from direct transac-tions, step by step. In the computation of direct trust,a double window mechanism,which included a stability window iV and a sensibility window M were adopted respectively to make trust relative stable but sensitive. It integrated node reputation by weighted trust degrees from other nodes. To strengthen the abilities of anti-attacking,trust values obviously deviating from mean were dynamically set with small weights. Proposed values of stability window N,sensitiveness window M,and stability-sensitive-ness balance coefficient of direct trust model. Simulation results prove the effectiveness of the proposed model.关键词
可信网络/信任模型/双滑动窗口/敏感性/动态权值/动态平衡系数Key words
Unstable network/ trust model/ double moving windows/ sensitivity/ dynamic weight/ dynamic balancing coeffi-cient分类
信息技术与安全科学引用本文复制引用
范艳峰,杨志晓..可信网络中一种敏感鲁棒的信任计算模型[J].计算机应用研究,2011,28(7):2497-2501,5.基金项目
河南省高校青年骨干教师资助计划项目(2009GGJS-056) （2009GGJS-056）
郑州市科技攻关计划项目(2010GYXM364) （2010GYXM364）
