基于椭圆曲线的矢量空间秘密共享—多重签名  

Vector Space Secret Sharing-Multisignature Based on Elliptic Curve

作　　者：鲁荣波[1] 何大可[1] 王常吉[2] 

机构地区：[1]西南交通大学信息安全与国家计算网格实验室 [2]中山大学计算机科学系,广东广州510275

出　　处：《计算机应用研究》2007年第5期109-111,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(60503005);湖南省自然科学基金资助项目(03JJY6017);湖南省教育厅资助项目(03c327)

摘　　要：构建了一种基于访问结构的矢量空间秘密共享—多重签名。在该方案中,任何参与者的授权子集能很容易地产生群体签名,而非参与者不可能产生有效的群体签名,验证者可以通过验证方法验证个体签名和群体签名的合法性,新方案能抵御各种可能的攻击。与其他实现方式相比,其签名长度较短。A new vector space secret sharing-muhisignature schemes based on access structure was presented. A trusted share distribution center generate the group secret key and distribute the corresponding secret shares to each participant; the group signature can be easily produced if an authorized subset of participants pool their secret shares and it is impossible for them to generate a group signature if an unauthorized subset of participants pool their secret shares. The validity of the partial signature and the group signature can be verified by means of verification equations. A group signature of authorized subset of participants cannot be impersonated by any other set of participants. None of several possible attacks can successfully break this scheme. The length of the signature is much shorter than other one constructed by other measures.

关 键 词：矢量空间秘密共享 椭圆曲线密码体制 多重签名 矢量空间秘密共享-多重签名 

分 类 号：TN918[电子电信—通信与信息系统]