文献类型： 外文期刊
第一作者： Yue, Xiaohan
作者： Yue, Xiaohan;Xi, Mengzhe;Chen, Bing;He, Yuan;Gao, Mingchao;Xu, Jian
作者机构：
关键词： Group signature; Revocation; Backward security; Efficiency
期刊名称：MOBILE NETWORKS & APPLICATIONS （ 影响因子：3.426； 五年影响因子：2.783 ）
ISSN： 1383-469X
年卷期：
页码：
收录情况： SCI
摘要： Despite of having many revocable group signatures schemes proposed in recent years, backward security, which prevents a revoked signer from generating group signatures for future time periods, was still missing the concern. In this paper, we introduce a security model that contains the definition of backward security, and propose a revocable group signatures scheme that is more efficient and scalable compared to previous ones, especially for Sign and Verify algorithms, which are performed much more frequently than others. In addition, considering the heavy workload of the group manager, we divide the whole group into groups by employing a decentralized model to make our scheme more scalable, and thus more practical in real-life applications.
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