MV群签密方案的安全性分析

广东工业大学学报 ›› 2007, Vol. 24 ›› Issue (1): 26-28.

MV群签密方案的安全性分析

广东工业大学应用数学学院；广州大学信息与机电工程学院广东广州510090；广东广州510006；

出版日期:2007-02-01 发布日期:2007-02-01

Cryptanalysis of Mu-Varadharajan Group Signcryption Scheme

(1.Faculty of Applied Mathematics,Guangdong University of Technology,Guangzhou 510090,China;2.School of Information and Mechanical Electronics Engineering,Guangzhou University,Guangzhou 510006,China)

Online:2007-02-01 Published:2007-02-01

摘要/Abstract

摘要： 利用MV群签密方案的安全漏洞构造具体的攻击:给定一个有效的密文,接收方中任何一个成员都可以伪装成发送方的成员产生其它有效的密文,从而证明MV群签密方案不满足不可伪造性.

关键词: 群签密；不可伪造性；离散对数问题；

Abstract: This paper demonstrates a concrete attack to show that the MV group signcryption scheme fails to have unforgeability.Our attack allows a dishonest receiver to forge a valid ciphertext as if the genuine sender generated it.

Key words: group signcryption； unforgeability； discrete logarithm problem；

曹嘉莉；高崇志； . MV群签密方案的安全性分析[J]. 广东工业大学学报, 2007, 24(1): 26-28.

CAO Jia-li1,GAO Chong-zhi2. Cryptanalysis of Mu-Varadharajan Group Signcryption Scheme[J]. Journal of Guangdong University of Technology, 2007, 24(1): 26-28.

参考文献

[1] 黎茂棠,杨晓元,韩益亮,魏立线,来学嘉. 基于ACJT的广义群签密方案[J]. 计算机工程与应用. 2008(31)

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