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匿名和可问责平衡的信誉系统

DOI: 10.13190/jbupt.201302.15.zhangkl, PP. 15-19

Keywords: 隐私,条件匿名,信誉系统

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Abstract:

针对现有基于临时身份信誉系统存在匿名和信誉的矛盾冲突、信誉评价不可控等问题,提出了一种基于条件匿名的信誉模型,对匿名用户之间的信誉评价进行监控,只有满足匿名条件的用户才能获得信誉值,违规用户会暴露身份并遭受惩罚.此外,本模型将信誉帐号与用户真实身份绑定,并基于盲签名进行信誉值更新,解决了信誉与匿名的冲突问题.分析结果显示本模型在确保用户匿名地获取、更新和展示信誉值的条件下,可使信誉系统安全可控,并限制了填塞攻击和女巫攻击.

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