计算机应用 ›› 2014, Vol. 34 ›› Issue (8): 2342-2344.DOI: 10.11772/j.issn.1001-9081.2014.08.2342

• 计算机安全 • 上一篇    下一篇

无证书签名方案的安全性分析与改进

樊爱宛,申远,赵伟艇   

  1. 平顶山学院 软件学院,河南 平顶山467002
  • 收稿日期:2014-02-10 修回日期:2014-03-26 出版日期:2014-08-01 发布日期:2014-08-10
  • 通讯作者: 樊爱宛
  • 作者简介:樊爱宛(1978-),男,河南内乡人,副教授,硕士,主要研究方向:信息安全、智能算法;申远(1983-),男,河南平顶山人,讲师,硕士,主要研究方向:信息安全;赵伟艇(1966-),男,河南宝丰人,教授,主要研究方向:信息安全、计算机网络。
  • 基金资助:

    河南省高校青年骨干教师资助计划项目;河南省教育厅科学技术研究重点项目;2014年河南省科技计划项目

Security analysis and improvement of certificateless signature scheme

PAN Aiwan,SHEN Yuan,ZHAO Weiting   

  1. Software School, Pingdingshan University, Pingdingshan Henan 467002, China
  • Received:2014-02-10 Revised:2014-03-26 Online:2014-08-01 Published:2014-08-10
  • Contact: PAN Aiwan

摘要:

针对王怡等(王怡,杜伟章.无双线性对的无证书签名方案的分析及改进.计算机应用,2013,33(8):2250-2252)提出的无双线性对运算的无证书签名方案,指出该方案无法抵抗伪造性攻击,并提出改进方案。改进方案加强了签名算法中参数的关联程度,以抵抗伪造性攻击。安全性分析结果表明,在随机预言机模型下,新方案对于自适应选择消息和身份攻击是存在性不可伪造的。改进方案避开双线性对和逆运算,效率优于已有方案。

Abstract:

By analyzing the security of a certificateless signature scheme without bilinear pairing proposed by Wang Y, et al. (WANG Y, DU W. Security analysis and improvement of certificateless signature scheme without bilinear pairing. Journal of Computer Applications, 2013, 33(8): 2250-2252), the result that the scheme can not resist forgery attack was pointed out and an improved scheme was proposed. The improved scheme enhanced the relationship of parameters in signature algorithm to resist forgery attack. The results of security analysis show that the improved scheme is proved to be existentially unforgeable against adaptive chosen message and identity attacks in random oracle model. The improved scheme is more efficient than the existing schemes for avoiding bilinear pairings and inverse operation.

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