计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (20): 123-125.

• 网络、通信、安全 • 上一篇    下一篇

特殊权限下的动态门限签名方案

王建东,邹  惠   

  1. 石家庄经济学院 信息工程学院,石家庄 050031
  • 出版日期:2012-07-11 发布日期:2012-07-10

Dynamic threshold signature scheme under special access right

WANG Jiandong, ZOU Hui   

  1. School of Information Engineering, Shijiazhuang University of Economics, Shijiazhuang 050031, China
  • Online:2012-07-11 Published:2012-07-10

摘要: 为了解决现有动态门限签名方案中签名者权限相同的问题,基于双线性映射,给出一种具有特殊权限的[(n1+n2,ti+1)]动态门限签名方案。该方案不仅能根据被签名消息的重要性动态改变门限值,而且实现了[ti]个一般成员和一个特殊成员共同完成的签名。对方案的性能进行了分析。

关键词: 特殊权限, 动态门限签名, 双线性对, 秘密共享

Abstract: Every participant has the same weight in the existing dynamic threshold signature scheme. In order to resolve the problem, based on bilinear pairing, a [(n1+n2,ti+1)] dynamic threshold signature scheme under special access right is proposed. It not only changes the threshold value dynamically according to the significance of the message, but also completes the signature by [ti] common participants and one special weighted participant. The performance of the scheme is analyzed.

Key words: special access right, dynamic threshold signature, bilinear pairing, secret sharing