| 一种改进的基于中国剩余定理的群签名方案 |
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| 引用本文： | 王传芳,周安民,刘亮.一种改进的基于中国剩余定理的群签名方案[J].四川大学学报(自然科学版),2015,52(4):805-807. |
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| 作者姓名： | 王传芳 周安民 刘亮 |
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| 作者单位： | 四川大学电子信息学院;四川大学电子信息学院;四川大学电子信息学院 |
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| 基金项目： | 中国信息安全测评中心资助项目（201204I051） |
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| 摘 要： | 在基于中国剩余定理的群签名的基础上，结合两种不同的ElGamal变体签名体制，分别用于加强群成员和群中心之间传递参数的验证和最终签名的生成，构造一种改进的有效的群签名方案.经安全性分析，提出的改进方案具有匿名性、可撤销性、不关联性，防伪造性等安全特性.同时选择的ElGamal变体签名能够减少签名方案的计算代价，提高整个签名方案的安全性和计算效率.
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| 关 键 词： | 群签名 中国剩余定理 ElGamal变体签名 安全性分析 |
| 收稿时间： | 2014/8/28 0:00:00 |
Improved group signature scheme based on Chinese remainder theorem |
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| WANG Chuan-Fang,ZHOU An-Min and LIU Liang.Improved group signature scheme based on Chinese remainder theorem[J].Journal of Sichuan University (Natural Science Edition),2015,52(4):805-807. |
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| Authors: | WANG Chuan-Fang ZHOU An-Min and LIU Liang |
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| Institution: | College of Electronics and Information Engineering, Sichuan University;College of Electronics and Information Engineering, Sichuan University;College of Electronics and Information Engineering, Sichuan University |
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| Abstract: | Based on Chinese remainder theorem, this paper proposes an improved group signature scheme.The scheme combines with two different ElGamal signature schemes to strengthen authentication of the parameters between group members and group center and to generated final signature. The analysis of security shows that the improved scheme has the properties of anonymity, revocability, unlinkability and unforgeablity. In addition, the improved scheme can reduce the computational cost of signature scheme, improve the security of the signature scheme and the calculation efficiency. |
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| Keywords: | Chinese remainder theorem ElGamal signature scheme Group signature Security analysis |
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