计算机应用 ›› 2012, Vol. 32 ›› Issue (01): 5-7.DOI: 10.3724/SP.J.1087.2012.00005

• 第四届中国计算机网络与信息安全学术会议论文(CCNIS’2011) • 上一篇    下一篇

基于多维信任云的信任模型研究

蔡红云,杜瑞忠,田俊峰   

  1. 河北大学 数学与计算机学院,河北 保定 071000
  • 收稿日期:2011-08-04 修回日期:2011-09-07 发布日期:2012-02-06 出版日期:2012-01-01
  • 通讯作者: 蔡红云
  • 作者简介:蔡红云(1980-),女,河北保定人,讲师,硕士,主要研究方向:分布式系统、可信计算;杜瑞忠(1975-),男,河北沧州人,副教授,主要研究方向:网络安全、可信计算;田俊峰(1965-),男,河北保定人,教授,博士,主要研究方向:网络安全、可信计算。
  • 基金资助:

    国家自然科学基金资助项目(60873203);河北省自然科学基金资助项目(F2010000331);河北大学自然科学基金资助项目(2008Q08);2011年保定市科学技术与发展指导计划项目(11ZG031)

Research of trust model based on multidimensional trust cloud

CAI Hong-yun,DU Rui-zhong,TIAN Jun-feng   

  1. College of Mathematics and Computer, Hebei University, Baoding Hebei 071000, China
  • Received:2011-08-04 Revised:2011-09-07 Online:2012-02-06 Published:2012-01-01
  • Contact: CAI Hong-yun

摘要: 针对主观信任的模糊性和不确定性以及现有的基于云模型的信任模型中粒度粗糙的问题,提出了一种基于多维信任云的信任模型。首先,依据实体间的直接交互经验和交互时间,利用加权逆向云生成算法计算被评估实体的直接信任云;然后,通过评估推荐实体的推荐可信度,计算被评估实体的推荐信任云;最后,综合直接信任云和推荐信任云产生综合信任云,并依此进行可信实体的选择。仿真结果表明,基于多维信任云的信任模型能够有效地识别系统中的各类服务实体,可提高实体间的交易成功率。

关键词: 主观信任, 云模型, 多维信任云, 直接信任云, 推荐信任云

Abstract: According to the characteristics of fuzziness and uncertainty in subjective trust, and the deficiency of coarse granularity in the existing trust model based on the cloud model, a new trust model based on multidimensional trust cloud was proposed. Based on the feedback and time for direct transactions between the entities, direct trust cloud for every entity could be generated using the weighted backward cloud algorithm. Recommend trust cloud was obtained by integrating recommend information and the recommend credibility of entity was the weight of the recommend information. Finally, the direct trust cloud and recommend trust cloud was synthesized together and the result could be a reference for the object selection. The experimental results show that the multidimensional trust cloud model can detect every kind of service provider effectively and improve the success rate between the entities.

Key words: subjective trust, cloud model, multidimensional trust cloud, direct trust cloud, recommend trust cloud

中图分类号: