长沙理工大学学报:自然科学版
長沙理工大學學報:自然科學版
장사리공대학학보:자연과학판
Journal of Changsha University of Science and Technology:Natural Science
2012年
1期
90-94
,共5页
群签名%密码学分析%矢量空问秘密共享%动态
群籤名%密碼學分析%矢量空問祕密共享%動態
군첨명%밀마학분석%시량공문비밀공향%동태
group signature cryptanalysis vector space secret sharing dynamic
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。
對趙樹平等人提齣的群籤名方案進行瞭分析,髮現此方案不具有動態性.根據矢量空間祕密共享知識,通過給定祕密,在加入或刪除成員時每箇成員的子祕密隨之變化,以此提齣一種基于雙線性對的動態群籤名方案.研究分析錶明,此方案是安全的,同時又提高瞭籤名效率。
대조수평등인제출적군첨명방안진행료분석,발현차방안불구유동태성.근거시량공간비밀공향지식,통과급정비밀,재가입혹산제성원시매개성원적자비밀수지변화,이차제출일충기우쌍선성대적동태군첨명방안.연구분석표명,차방안시안전적,동시우제고료첨명효솔。
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.