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。
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.
出处
《计算机工程与应用》
CSCD
2012年第13期75-78,共4页
Computer Engineering and Applications
关键词
基于身份签名
聚合签名
随机预言模型
ID-based signature
aggregate signature
random oracle model
