基于参数建模的分布式信任模型  

Distributed trust model based on parameter modeling

作　　者：汪京培[1,2] 孙斌[1,2] 钮心忻[1,2] 杨义先[1,2] 

机构地区：[1]北京邮电大学信息安全中心,北京100876 [2]北京邮电大学灾备技术国家工程实验室,北京100876

出　　处：《通信学报》2013年第4期47-59,共13页Journal on Communications

基　　金：国家重点基础研究发展计划("973"计划)基金资助项目(2007CB310704);国家自然科学基金资助项目(61161140320;61121061)~~

摘　　要：从信任的定义和信任模型的功能特性出发,提取了9个功能参数:灵活性、主观性、模糊性、时间衰减性、传递性、抗攻击性、奖惩机制、敏感性和可扩展性。在对这9个参数建模的基础上提出了一种分布式信任模型。分析结果表明所提信任模型满足提取参数的功能要求,具有一定的通用性。仿真结果表明所提的信任模型是合理有效的,相对于其他相关模型表现较为优越。A distributed trust model based on parameter modeling was proposed. Nine functional parameters were ex- tracted after investigating the trust mechanism and current trust models. These parameters included flexibility, subjectivity, fuzziness, time decay property, transitivity, anti-attacks property, rewards ＆ punishment property, sensitivity and scalability. Each parameter was modeled and integrated to form a comprehensive trust model. Analytical results indicate that the pro- posed trust model satisfies all the nine functional parameters and thus has fair universality. Experimental results show that the proposed trust model is reasonable and effective. Comparisons with previous algorithms indicate that the performance of the proposed trust model has been improved.

关 键 词：网络安全 信任 信任模型 功能参数 参数建模 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]