Laih和Yen多重签名方案的改进。

Journal of Zhejiang University. Science Pub Date : 2004-09-01 DOI:10.1631/jzus.2004.1155

Qi Xie, Xiu-yuan Yu

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引用次数: 5

摘要

提出了一种新的攻击方法，证明了指定的验证者组可以通过协作来伪造任何消息的签名，方法是由于密钥泄露而进行密钥替换，或者由于成员更新而进行组公钥调整。本文提出了一种改进方案，克服了Laih和Yen方案的安全缺陷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Improvement of Laih and Yen's multisignature scheme.

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.

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Journal of Zhejiang University. Science

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