Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (10): 95-97.

• 网络、通信、安全 • Previous Articles     Next Articles

Proxy-protected digital signature scheme on elliptic curve

WANG Xinghua,XIN Xiaolong   

  1. Department of Mathematics,Northwest University,Xi’an 710127,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-04-01 Published:2011-04-01

椭圆曲线的保护代理数字签名方案

王兴华,辛小龙   

  1. 西北大学 数学系,西安 710127

Abstract: This paper proposes a new proxy signature scheme based on Elliptic Curve Discrete Logarithm Problem(ECDLP),for the original signer may be posing as proxy signer to generate a valid proxy signature in a proxy signature,and analyzes the complexity and safety of the scheme.The scheme can ensure any third party other than the proxy signer(including the original signer) can not forge the proxy signature to generate a valid proxy signature,thereby enhancing the security of digital signatures.

Key words: digital signature, proxy digital signature, Elliptic Curve Discrete Logarithm Problem(ECDLP)

摘要: 针对代理签名中原始签名人可能冒充代理签名人生成有效代理签名这一不安全因素,提出了一种新的基于椭圆曲线离散对数问题(ECDLP)的代理签名方案,并对方案的复杂度与安全性进行了分析。该方案能够保证代理签名人以外的任何第三方(包括原始签名人)都不能对代理签名进行伪造,产生有效的代理签名,从而提高了数字签名的安全性。

关键词: 数字签名, 代理数字签名, 椭圆曲线离散对数问题