Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (13): 127-129.DOI: 10.3778/j.issn.1002-8331.2009.13.037

• 网络、通信、安全 • Previous Articles     Next Articles

Threshold signature with proxy scheme

YU Jing,LI Zhi-hui   

  1. College of Mathematics and Information Science,Shaanxi Normal University,Xi’an 710062,China
  • Received:2008-03-10 Revised:2008-05-26 Online:2009-05-01 Published:2009-05-01
  • Contact: YU Jing

有代理的门限签名方案

于 静,李志慧   

  1. 陕西师范大学 数学与信息科学学院,西安 710062
  • 通讯作者: 于 静

Abstract: This paper proposes a threshold signature with proxy scheme,which adds the idea of signature with proxy to threshold signature scheme.It makes the original signers together with the proxy signers to sign the massage.This can solve the problem that when a part of original signers can’t participate in signature and these original signers can delegate their signing power to proxy signers,and they can sign the massage together with the remainder of original signers.This scheme is the generalization of threshold proxy signature scheme and it can use in the wider scope.

Key words: the signature with proxy scheme, threshold signature, discrete logarithm, Schnorr scheme, Lagrange interpolation

摘要: 在门限代理签名方案中加入有代理的思想,提出了一个有代理的门限签名方案,实现了原始签名者与代理签名者联合进行签名,这就解决了当一部分原始签名者不能履行签名义务时,这部分原始签名者可以委托他们的代理签名者与剩下的原始签名者一起进行签名。这个方案也是门限代理签名的一个推广,它可以在更广的范围内得到应用。

关键词: 有代理的签名方案, 门限签名, 离散对数, Schnorr方案, Lagrange插值公式