On the security of a group signature scheme with forward security

被引：0
|
作者：
Wang, GL [1 ]
机构：
[1] ICDS, Inst Infocomm Res, Singapore 119613, Singapore
来源：
INFORMATION SECURITY AND CRYPTOLOGY - ICISC 2003 | 2004年 / 2971卷
关键词：
digital signature; group signature; forward security; cryptanalysis;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
A group signature scheme allows a group member of a given group to sign messages on behalf of the group in an anonymous and unlinkable way. In case of a dispute, however, a designated group manager can reveal the signer of a valid group signature. Based on Song's forward-secure group signature schemes, Zhang, Wu, and Wang proposed a new group signature scheme with forward security at ICICS 2003. Their scheme is very efficient on both communication and computation aspects. Unfortunately, their scheme is insecure. In this paper we present a security analysis to show that their scheme is linkable, untraceable, and forgeable.
引用
收藏
页码：27 / 39
页数：13
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