Efficient Verifier-local Revocation Group Signature Schemes with Backward Unlinkability  

作　　者：WEI Lingbo WU Chuankun ZHOU Sujing 

机构地区：[1]State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100080, China [2]Graduate School of Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Journal of Electronics》2009年第2期379-384,共6页电子学报（英文版）

摘　　要：Membership revocation is a delicate issue of group signature. Verifier-local revocation （VLR） is a reasonable resolution, especially for mobile environments. Based on the DDH and q-SDH assumption, we propose a new VLR group signature scheme with Backward unlinkability （BU）. It has shortest signature size and smallest computation overhead among the previous BU-VLR group signature schemes. Then, we extend our scheme to gain non-frameability.

关 键 词：Group signature Membership revocation Verifier-local revocation Backward unlinkability Non-frameability. 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术] TP311[自动化与计算机技术—计算机科学与技术]