摘要
对赵树平等人提出的群签名方案进行了分析,发现此方案不具有动态性.根据矢量空间秘密共享知识,通过给定秘密,在加入或删除成员时每个成员的子秘密随之变化,以此提出一种基于双线性对的动态群签名方案.研究分析表明,此方案是安全的,同时又提高了签名效率.
The Zhao et al group signature scheme was analyzed,and we find this scheme do not have dynamic. According to the vector space secret sharing, through a regular secret , when add or remove members of group, the sub-secret of each member have changed, there- fore,a dynamic group signature scheme based on bilinear pairing is proposed. Analysis shows that this scheme is secure. Besides, this scheme has also improved the efficiency of the original signature scheme.
出处
《长沙理工大学学报（自然科学版）》
CAS
2012年第1期90-94,共5页
Journal of Changsha University of Science and Technology:Natural Science
关键词
群签名
密码学分析
矢量空间秘密共享
动态
group signature cryptanalysis vector space secret sharing dynamic
作者简介
唐丽卫（1987-），女，河北邢台人，长沙理工大学硕士研究生，主要从事密码学的研究．
