%0 Journal Article
%T Comments on an efficient group signature scheme<br>评一种高效的群签名
%A ZHOU Su-Jing
%A LIN Dong-Dai
%A <br>周苏静
%A 林东岱
%J 中国科学院研究生院学报
%D 2007
%I 
%X Group signature schemes are extended from ordinary digital signatures motivated by a variety of applications.Zhang et al proposed an efficient group signature scheme which was claimed to be more efficient than the well known ACJT scheme,because expensive signature of knowledge,a component in a majority of group signature schemes,was avoided in generating the group signature.In this paper,we point out that Zhang(et al's) scheme actually adopted signature of knowledge,and it is completely insecure because of the inappropriate design.
%K digital signature
%K group signature
%K signature of knowledge
%K proof of knowledge<br>数字签名
%K 群签名
%K 知识签名
%K 知识证明
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=67CDFDECD959936E166E0F72DE972847&aid=E24F8EC8FEE9A371&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=38B194292C032A66&sid=EC34D52BE81085CE&eid=160561E9A96393DE&journal_id=1002-1175&journal_name=中国科学院研究生院学报&referenced_num=1&reference_num=12