计算机科学 ›› 2010, Vol. 37 ›› Issue (4): 75-76.
• 计算机网络与信息安全 • 上一篇 下一篇
张兴兰
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ZHANG Xing-lan
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摘要： 最近陈少真等人提出了一种具有前向安全和有效撤销成员性质的群签名方案，该方案通过在签名中增加一个验证取消展示实现对成员的撤销。分析了陈方案设计的缺陷，给出了一种改进的成员撤销算法。在强RSA和离散对数假设下，证明了改进方案的有效性和安全性。
关键词: 群签名，成员撤销，可跟踪性
Abstract: Recently, Chen, et al. presented a membership revocation algorithm of a group signature scheme, verifiable revocation procedure was invoked to show whether a member is revoked. I3y analyzing Chen's design, a limitation was pointed. At the same time, another improved membership revocation algorithm was proposed. Under the assumption of stronger RSA and Discrete Logarithm problem, the efficiency and the security of the new group signature scheme were proven.
Key words: Group signature,Membership revocation,Traceability
张兴兰. 一个群签名方案的安全性分析与改进[J]. 计算机科学, 2010, 37(4): 75-76. https://doi.org/
ZHANG Xing-lan. Security Analysis and Improvement of a Group Signature Scheme[J]. Computer Science, 2010, 37(4): 75-76. https://doi.org/
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