信息网络安全 ›› 2022, Vol. 22 ›› Issue (8): 19-25.doi: 10.3969/j.issn.1671-1122.2022.08.003

• 技术研究 • 上一篇    下一篇

基于twisted Edwards曲线的无证书盲签名方案

刘芹1,2(), 张标1,2, 涂航1,2   

  1. 1.武汉大学国家网络安全学院,武汉 430072
    2.武汉大学空天信息安全与可信计算教育部重点实验室,武汉 430072
  • 收稿日期:2022-05-22 出版日期:2022-08-10 发布日期:2022-09-15
  • 通讯作者: 刘芹 E-mail:qinliu@whu.edu.cn
  • 作者简介:刘芹(1978—),女,湖北,副教授,博士,主要研究方向为物联网安全、嵌入式系统安全、区块链和移动计算安全。|张标(1996—),男,安徽,硕士研究生,主要研究方向为物联网安全和轻量级密码协议|涂航(1975—),男,湖北,副教授,博士,主要研究方向为密码学、嵌入式安全和物联网安全
  • 基金资助:
    国家重点研发计划(2018YFC1604000)

Certificateless Blind Signature Scheme Based on twisted Edwards Curve

LIU Qin1,2(), ZHANG Biao1,2, TU Hang1,2   

  1. 1. School of Cyber Science and Engineering, Wuhan University, Wuhan 430072, China
    2. Key Laboratory of Aerospace Information Security and Trusted Computing of Ministry of Education, Wuhan University, Wuhan 430072, China
  • Received:2022-05-22 Online:2022-08-10 Published:2022-09-15
  • Contact: LIU Qin E-mail:qinliu@whu.edu.cn

摘要:

无证书公钥密码体制消除了传统公钥密码体制对证书的需求,解决了基于身份公钥密码体制的密钥托管问题。文章结合无证书密码体制与盲签名,基于twisted Edwards曲线提出一种高效的无证书盲签名方案,并在随机预言模型下,给出形式化的安全性证明。实验结果表明,与现有的同类型无证书盲签名方案相比,文章所提方案的签名和验签效率提高了15%以上。

关键词: 盲签名, 无证书公钥密码, Ed25519, 可证明安全性

Abstract:

The certificateless public key cryptography eliminates the need for certificates in traditional public key cryptography, and solves the key escrow problem based on identity public key cryptography. This paper combined the advantages of the above-mentioned certificateless cryptography with blind signature, and proposed an efficient certificateless blind signature scheme based on twisted Edwards curve, and gave a formal security proof under the random oracle model. The experimental results show that the efficiency of signature and verification of the proposed scheme can be improved by more than 15% compared with the existing similar certificateless blind signature scheme.

Key words: blind signature, certificateless public key cryptography, Ed25519, provable security

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