一种安全有效的基于身份的聚合签名方案

聚合签名是一种将n个来自于n不同签名者对n个不同消息m的签名聚合成一个单一签名的数字签名技术。利用双线性对技术,提出了一种有效的基于身份的聚合签名方案。同已有的基于身份的聚合签名方案相比,该方案在签名验证方面具有较低的计算成本。最后利用计算Diffie-Hellman问题的困难性在随机预言模型下证明了该方案在适应性选择消息和身份攻击下的不可伪造性。

Secure and Efficient Identity-based Aggregate Signature Scheme

An aggregate signature scheme is a digital signature that given n signatures on n distinct messages from n distinct users,it is possible to aggregate all these signatures into a single signature.We proposed an identity-based aggregate signature scheme based on the bilinear pairings,which has a lower verification cost compared with the existing identity-based aggregate signatures.We proved that the proposed signature scheme is secure against existential forgery under adaptively chosen message and ID attack i...