北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1999, Vol. 22 ›› Issue (4): 6-8.

• 学术论文 • 上一篇    下一篇

He-Wu数字签名方案的攻击方法

李子臣, 徐国爱, 杨义先   

  1. 北京邮电大学信息工程系, 北京 100876
  • 收稿日期:1999-01-12 出版日期:1999-11-10
  • 基金资助:
    国家自然科学基金资助项目(69772035; 69882002)

Cryptanalysis of Improved Rabin's Crypto-System

Li Zichen, Xu Guoai, Yang Yixian   

  1. Department of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
  • Received:1999-01-12 Online:1999-11-10

摘要: 对He和Wu基于二次剩余问题设计的快速数字签名方案(简称H-W数字签名方案)的安全性进行了分析, 指出H-W数字签名方案是不安全的, 并利用Morrison-Brillhart素因子分解算法, 给出一种具体的攻击方法.

关键词: 密码学, 数字签名, 二次剩余

Abstract: We will analysis the security of the fast digital signature scheme, which is proposed designed by He and Wu based on quadratic residue (called H-W digital signature scheme). And point out that the scheme is insecure. We also present an attack method, which is based on Morrison-Brillhart'sfactoring, on H-W digital signature scheme.

Key words: cryptography, signature, quadratic residue

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