信息安全研究 ›› 2019, Vol. 5 ›› Issue (3): 217-222.

• 学术论文 • 上一篇    下一篇

一种椭圆曲线数字签名的改进方案

陈亚茹1,丛培强2,陈庄2   

  1. 1. 重庆理工大学
    2. 重庆理工大学计算机科学与工程学院
  • 收稿日期:2019-03-12 出版日期:2020-03-15 发布日期:2019-03-12
  • 通讯作者: 陈亚茹
  • 作者简介:陈亚茹 硕士研究生,主要研究方向为信息安全. 642200814@qq.com 丛培强 硕士研究生,主要研究方向为大数据. 1539397039@qq.com 陈庄 教授,研究生导师,主要研究方向为企业信息化管理、网络与信息安全. cz@cqut.edu.cn

An Improved Scheme for Elliptic Curve Digital Signature

  • Received:2019-03-12 Online:2020-03-15 Published:2019-03-12

摘要: 阐述了目前椭圆曲线数字签名(elliptic curve digital signature, ECDSA)存在的问题,针对ECDSA存在的问题提出了改进的方案,并分析了该方案虽然提高了ECDSA的计算效率,但未考虑伪造签名攻击的问题.从椭圆曲线数字签名的安全性和计算高效性出发,提出了一种椭圆曲线数字签名的改进方案,通过理论和仿真实验证明了方案的安全性和高效性.研究结果表明,改进的方案通过标量乘运算2次和逆运算1次,提高了数字签名的计算效率和防止数字签名伪造攻击.

关键词: 椭圆曲线数字签名, 伪造攻击, 标量乘运算, 逆运算, 计算耗时

Abstract: The existing problems of elliptic curve digital signature (ECDSA) are briefly described, the improved scheme for the existing problems of ECDSA is studied, although the scheme improves the computational efficiency of ECDSA, the forgery signature attack is not considered. Based on the security and computational efficiency of elliptic curve digital signature, an improved scheme for elliptic curve digital signature is proposed, the safety and efficiency of the proposed scheme are proved by theory and simulation experiments. The results show that the improved scheme improves the computational efficiency of digital signature and prevents forgery attacks by scalar multiplication twice and inversion once.

Key words: ECDSA, forgery attack, scalar multiplication, inverse operation, computing time