计算机工程与科学2011，Vol.33Issue(4)：13-18,6.DOI:10.3969.j.issn.1007-130X.2011.04.003
一种改进的存在特权集的门限群签名方案
An Improved Threshold Group Signature Scheme with a Privilege Set
摘要
Abstract
In order to solve the different authority between the signers of group signature, a lot of threshold group signature schemes with privilege sets are proposed.This paper analyzes and studies a threshold group signature scheme which is based on the ElGamal type, and the shortages of this scheme are found which do not satisfy the property of group signature and do not distinguish the single signatures.Aiming at these shortages, an improved threshold group signature scheme with a privilege set based on ECC is proposed.The ability of this scheme to prevent the forgery of KDC and the Clerk is enhanced by adding an authentication key and using an interactive identity verification method under the public environment.The group members prevent the forgery of KDC by using the Pedersen VSS validation methods.The improved scheme can not only achieve the discoveries and revocation of group members, but also have the properties of threshold group signature.关键词
特权集/门限群签名/群签名特性/ECCKey words
privilege set / threshold group-signature/ group signature characteristics/ ECC分类
信息技术与安全科学引用本文复制引用
董玉蓉,汪学明..一种改进的存在特权集的门限群签名方案[J].计算机工程与科学,2011,33(4):13-18,6.基金项目
国家自然科学基金资助项目(60963023) （60963023）
贵州大学引进人才科研基金项目(2008)005号 （2008）
