Analysis and improvement of identity based aggregate signature scheme

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (13): 75-78.

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Analysis and improvement of identity based aggregate signature scheme

LU Haijun, XIE Qi

School of Information Science and Engineering, Hangzhou Normal University, Hangzhou 310036, China

Online:2012-05-01 Published:2012-05-09

基于身份聚合签名方案的分析与改进

陆海军，谢琪

杭州师范大学信息科学与工程学院，杭州 310036

Abstract

Abstract: An aggregate signature scheme allows n different users to sign n different messages to generate a single signature. In 2010, Zhou and Du proposed an ID-based aggregate signature scheme. This paper shows that their scheme can’t resist the forgery attack, because an attacker can generate a valid signature for any message if he has ever obtained a signature. Then, an improved scheme to overcome their weakness is proposed, and it is provably secure in random oracle model.

Key words: ID-based signature, aggregate signature, random oracle model

摘要： 聚合签名方案允许n个用户对n个消息产生一个签名。2010年，周和杜提出了一个基于身份聚合签名方案，指出他们的方案无法抵抗伪造攻击，当攻击者得到某个成员的签名后，就可以对任意的消息产生有效的签名。提出一个改进方案弥补了安全缺陷，并在随机预言模型下证明了安全性。

关键词: 基于身份签名, 聚合签名, 随机预言模型

LU Haijun, XIE Qi. Analysis and improvement of identity based aggregate signature scheme[J]. Computer Engineering and Applications, 2012, 48(13): 75-78.

陆海军，谢琪. 基于身份聚合签名方案的分析与改进[J]. 计算机工程与应用, 2012, 48(13): 75-78.

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Analysis and improvement of identity based aggregate signature scheme

基于身份聚合签名方案的分析与改进

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