计算机工程2017，Vol.43Issue(7)：163-169,7.DOI:10.3969/j.issn.1000-3428.2017.07.027
向量空间上无可信中心的动态多秘密共享方案
Dynamic Multi-secret Sharing Scheme in Vector Space Without Trusted Center
王俞力 1杜伟章1
作者信息
- 1. 长沙理工大学 计算机与通信工程学院,长沙 410114
- 折叠
摘要
Abstract
The existing secret sharing scheme in the vector space cannot achieve the secret share update or the dynamic addition and deletion of members,and it is hard to ensure the existence of trusted center,so a multi-secret sharing scheme without trusted center is proposed.The secret share is negotiated by all participants without trusted center,and anyone can verify the correctness of distributed secret shares and updated ones with the properties of bilinear pairings.A new public function is constructed to express the shared secret,and participants can reconstruct multiple secrets by the public function.Addition and deletion of members are determined by other members jointly,and the way that old members assist new members for generating their secret shares is adopted,which achieves dynamic management of members.The correctness and security of the scheme are proved.Compared with other vector space secret sharing schemes,this scheme has higher security,efficiency and dynamic property.关键词
多秘密共享/向量空间/公开验证/双线性对/份额更新/可信中心Key words
multi-secret sharing/vector space/public verification/bilinear parings/share update/trusted center分类
信息技术与安全科学引用本文复制引用
王俞力,杜伟章..向量空间上无可信中心的动态多秘密共享方案[J].计算机工程,2017,43(7):163-169,7.
