Improvement of Laih and Yen's multisignature scheme

被引：0

作者：

谢琪

于秀源

机构：

[1] Department of Mathematics

[2] Hangzhou 310012

[3] China Hangzhou Teachers College

[4] Hangzhou 310027

[5] China

[6] China School of Information and Engineering

[7] Hangzhou Teachers College

[8] Zhejiang University

来源：

Journal of Zhejiang University-Science A(Applied Physics & Engineering) | 2004年 / 09期

基金：

中国国家自然科学基金;

关键词：

Digital signature; Multisignature; Cryptography;

D O I：

暂无

中图分类号：

TP309 [安全保密];

学科分类号：

081201 ; 0839 ; 1402 ;

摘要：

A new attack is proposed to show that a specified group of verifiers can cooperate to forge the signature for any message by secret key substitution due to the leaked secret key or by the group public key adjustment because of the renewed members. This paper presents the improvement scheme which overcomes the security weakness of Laih and Yen’s scheme.

引用

页码：149 / 153

页数：5