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Journal of Zhejiang University SCIENCE A

ISSN 1673-565X(Print), 1862-1775(Online), Monthly

2004 Vol.5 No.9 P.1155-1159

Improvement of Laih and Yen's multisignature scheme

XIE Qi, YU Xiu-yuan

Department of Mathematics, Zhejiang University, Hangzhou 310027, China; School of Information and Engineering, Hangzhou Teachers College, Hangzhou 310012, China; Hangzhou Teachers College, Hangzhou 310012, China

qixie@hztc.edu.cn

Abstract: 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.

Key words: Digital signature, Multisignature, Cryptography


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Open peer comments: Debate/Discuss/Question/Opinion

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Abhijit Nayak@Undergraduate<abhijit623@gmail.com>

2014-04-07 21:00:02

i want to read this paper

Yang Haomiao@University of Electronic Science and Technology of China<haomyang@uestc.edu.cn>

2011-06-09 11:24:22

My major is information security and Cryptography. I look forward to study the paper.

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DOI:

10.1631/jzus.2004.1155

CLC number:

TP309

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Received:

2003-06-13

Revision Accepted:

2003-11-07

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