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| 刘伟,蔡嘉勇,贺也平.一种基于信任度的自组安全互操作方法.软件学报,2007,18(8):1958-1967 |
| 一种基于信任度的自组安全互操作方法 |
| A Trustworthiness Based Ad-Hoc Secure Interoperation Method |
| 投稿时间：2007-03-01 修订日期：2007-05-31 |
| DOI： |
| 中文关键词: 授权 自组协同 安全互操作 信任度 加权主要算法 |
| 英文关键词:authorization ad-hoc collaboration secure interoperation trustworthiness weighted majority algorithm |
| 基金项目:Supported by the Science-Technology Project of the National "Tenth Five-Year-Plan" of China under Grant No.2005BA113A02 (国家"十五"攻关计划); the Graduate Innovation Grant of the Chinese Academy of Sciences (中国科学院研究生创新资金) |
| 作者 | 单位 | | 刘伟 | 中国科学院,软件研究所,基础软件国家工程研究中心,北京,100080
中国科学院,研究生院,北京,100049 | | 蔡嘉勇 | 中国科学院,软件研究所,基础软件国家工程研究中心,北京,100080
中国科学院,研究生院,北京,100049 | | 贺也平 | 中国科学院,软件研究所,基础软件国家工程研究中心,北京,100080 |
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| 摘要点击次数: 4934 |
| 全文下载次数: 3565 |
| 中文摘要: |
| 提出了基于信任度的自组安全互操作方法,引入信任度描述自治域和用户正确参与协作的概率.自治域对用户的信任度由二者的直接交互经验以及其他域对用户的评价共同决定,满足信任策略要求的用户允许执行角色.用户的恶意历史行为将会降低其信任度,从而影响执行角色的范围.自治域对其他域的信任度由对用户的评价与直接经验的偏差根据加权主要算法反馈更新.自治域的恶意评价影响其推荐信息的可信程度.实验结果表明,该方法能够有效地抵御欺骗和恶意行为. |
| 英文摘要: |
| A trustworthiness-based ad-hoc secure interoperation method is proposed, in which the concept of trustworthiness is introduced to describe the probability of proper collaboration. The trustworthiness of an autonomic domain on a user is decided jointly by direct experiences of interactions and other domains’ assessments on the user. Only the users who satisfy the requirements of target domains’ trust policies have the privileges to access entry roles. Records of a user’s malicious actions will decrease his trustworthiness and then accordingly reduce his privileges. Target domain uses weighted majority algorithm to update recommender’s trustworthiness, which is reduced by unfair ratings. Experimental results show that this method can effectively resist cheating and malicious actions. |
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