| 改进的基于中国剩余定理群签名方案 |
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| 引用本文： | 崔国华,耿永军,卢社阶,粟栗. 改进的基于中国剩余定理群签名方案[J]. 华中科技大学学报(自然科学版), 2009, 37(6): 1-3 |
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| 作者姓名： | 崔国华 耿永军 卢社阶 粟栗 |
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| 作者单位： | 华中科技大学,计算机科学与技术学院,湖北,武汉,430074;华中科技大学,计算机科学与技术学院,湖北,武汉,430074;平顶山工学院,计算机系,河南,平顶山,467001 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 指出一种群签名方案存在关联性和增删群成员后群公钥改变的不足,对原签名协议进行完善,改进方案由群成员和群中心合作完成群签名代替原方案的只有群成员单独完成群签名,在签名时间开销上有所增加,但保留了原方案的验证签名、增删群成员的高效,实现了不可关联性和增删群成员后群公钥不变,且避免了群中心伪造攻击.
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| 关 键 词： | 数字签名 群签名 中国剩余定理 成员撤销 不可关联性 |
Improved group signature scheme based on Chinese remainder theorem |
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| Cui Guohua Geng Yongjun, Lu Shejie Su Li. Improved group signature scheme based on Chinese remainder theorem[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2009, 37(6): 1-3 |
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| Authors: | Cui Guohua Geng Yongjun Lu Shejie Su Li |
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| Affiliation: | Cui Guohua1 Geng Yongjun1,2 Lu Shejie1 Su Li1(1 College of Computer Science Technology,Huazhong University of Science and Technology,Wuhan 430074,China,2 Department of Computer,Pingdingshan Institute of Technology,Pingdingshan 467001,Henan China) |
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| Abstract: | The defect of linkability and group public key changing with adding and deleting group members were presented.The group signature scheme was modified to a practical scheme to meet with group signature security requirement and the efficiency of signature verifying,deleting and adding group member in original scheme were kept.In the modified scheme,group member cooperates with group center to finish group signature instead of group member finishing group signature individually,which has shortcoming of more si... |
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| Keywords: | digital signature group signature Chinese remainder theorem member revocation unlinkability |
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