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基于属性门限签名的动态群组共享数据公开审计方案

发布时间:2018-08-29 13:18
【摘要】:提出了一种基于属性门限签名的动态群组隐私保护公开审计方案,将用户身份信息参数引入用户属性私钥中,有效地防止合谋攻击者通过组合属性密钥来伪造签名.该方案利用基于属性的授权策略,支持用户权限撤销和数据动态操作.分析结果表明,该方案在随机预言模型下具有不可伪造性和抵抗合谋攻击等特点,高效率且安全.
[Abstract]:This paper proposes a dynamic group privacy protection public audit scheme based on attribute threshold signature, which introduces user identity information parameters into the user attribute private key, and effectively prevents collusion attackers from forging signatures by combining attribute keys. The scheme utilizes attribute-based authorization policy to support user permission revocation and data dynamic operation. The results show that the proposed scheme has the characteristics of unforgeability and resistance to collusion attacks in the stochastic prediction model. It is efficient and secure.
【作者单位】: 北京邮电大学信息安全中心;北京邮电大学灾备技术国家工程实验室;
【基金】:国家高技术研究发展计划(863计划)项目(2015AA016005,2015AA017201) 广东省应用型科技研发专项资金项目(2015B010131007)
【分类号】:TP309


本文编号:2211323

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