《计算机应用》唯一官方网站 ›› 2023, Vol. 43 ›› Issue (11): 3368-3374.DOI: 10.11772/j.issn.1001-9081.2022111801

• 2022年全国开放式分布与并行计算学术年会(DPCS 2022) • 上一篇    

基于椭圆曲线的高效无证书环签名方案

朱秀萍1,2,3, 刘亚丽1,2,3(), 林昌露2, 李涛1,2,3, 董永权1   

  1. 1.江苏师范大学 计算机科学与技术学院,江苏 徐州 221116
    2.福建省网络安全与密码技术重点实验室(福建师范大学),福州 350117
    3.广西密码学与信息安全重点实验室(桂林电子科技大学),广西 桂林 541004
  • 收稿日期:2022-11-04 修回日期:2023-01-04 接受日期:2023-01-10 发布日期:2023-03-15 出版日期:2023-11-10
  • 通讯作者: 刘亚丽
  • 作者简介:朱秀萍(1997—),女,四川内江人,硕士研究生,CCF会员,主要研究方向:公钥密码学、数字签名、物联网隐私保护
    刘亚丽(1981—),女,江苏徐州人,教授,博士,CCF高级会员,主要研究方向:信息安全、认证和隐私保护、区块链、车载自组织网络、密码算法和协议 liuyali@jsnu.edu.cn
    林昌露(1978—),男,福建大田人,教授,博士生导师,博士,CCF会员,主要研究方向:密码学、网络安全、秘密共享、安全多方计算、公钥密码学
    李涛(1998—),男,湖北黄冈人,硕士研究生,主要研究方向:无线射频识别认证、隐私保护、物联网安全、区块链
    董永权(1979—),男,江苏宿迁人,教授,博士,CCF会员,主要研究方向:Web信息管理、Web信息安全。
  • 基金资助:
    国家自然科学基金资助项目(61702237);徐州市科技计划项目(KC22052);福建省网络安全与密码技术重点实验室(福建师范大学)开放课题(NSCL?KF2021?04);广西密码学与信息安全重点实验室(桂林电子科技大学)研究课题(GCIS202114);江苏师范大学研究生科研与实践创新计划项目(2021XKT1396);教育部产学合作协同育人项目(202101374001)

Efficient certificateless ring signature scheme based on elliptic curve

Xiuping ZHU1,2,3, Yali LIU1,2,3(), Changlu LIN2, Tao LI1,2,3, Yongquan DONG1   

  1. 1.College of Computer Science and Technology,Jiangsu Normal University,Xuzhou Jiangsu 221116,China
    2.Fujian Provincial Key Laboratory of Network Security and Cryptology (Fujian Normal University),Fuzhou Fujian 350117,China
    3.Guangxi Key Laboratory of Cryptography and Information Security (Guilin University of Electronic Technology),Guilin Guangxi 541004,China
  • Received:2022-11-04 Revised:2023-01-04 Accepted:2023-01-10 Online:2023-03-15 Published:2023-11-10
  • Contact: Yali LIU
  • About author:ZHU Xiuping, born in 1997, M. S. candidate. Her research interests include public-key cryptography, digital signature, Internet of Things privacy-preserving.
    LIU Yali, born in 1981, Ph. D., professor. Her research interests include information security, authentication and privacy-preserving, blockchain, vehicular ad-hoc network, cryptographic algorithms and protocols.
    LIN Changlu, born in 1978, Ph. D., professor. His research interests include cryptography, network security, secret sharing, secure multi-party computation, public-key cryptography.
    LI Tao, born in 1998, M. S. candidate. His research interests include Radio Frequency Identification (RFID) authentication, privacy protection, Internet of Things security, blockchain.
    DONG Yongquan, born in 1979, Ph. D., professor. His research interests include Web information management, Web information security.
  • Supported by:
    National Natural Science Foundation of China(61702237);Science and Technology Planning Foundation of Xuzhou City(KC22052);Opening Foundation of Fujian Provincial Key Laboratory of Network Security and Cryptology Research Fund, Fujian Normal University(NSCL-KF2021-04);Opening Foundation of Guangxi Key Laboratory of Cryptography and Information Security, Guilin University of Electronic Technology(GCIS202114);Postgraduate Research and Practice Innovation Program of Jiangsu Normal University(2021XKT1396);Ministry of Education University-Industry Collaborative Education Program of China(202101374001)

摘要:

环签名具有自发性和匿名性,被广泛用于解决用户身份和数据隐私泄露问题;而无证书公钥密码体制不仅可以解决密钥托管问题,还不需要公钥证书的管理;无证书环签名则结合了上述两者的优点,具有广泛的研究意义,但现有大多数无证书环签名方案基于双线性配对运算和模指数运算,计算成本高、效率低。为了提高签名阶段和验证阶段的效率,提出一种新的基于椭圆曲线的高效无证书环签名(ECL-RS)方案,使用了计算代价低、安全性高、灵活性好的椭圆曲线。该方案的安全性规约为离散对数困难问题和Diffie-Hellman问题,且在随机预言机模型(ROM)下证明了它能够抵抗公钥替换攻击和恶意密钥生成中心攻击,具有不可伪造性和匿名性。性能分析表明,ECL-RS方案只需(n+2)(n表示为环成员个数)次椭圆曲线标量乘法和标量加法运算,以及(n+3)次单向哈希运算,在保证安全的情况下具有较低的计算代价和更高的效率。

关键词: 环签名, 椭圆曲线, 无证书环签名, 高效性, 随机预言机模型

Abstract:

Ring signature is widely used to solve the problems of user identity and data privacy disclosure because of its spontaneity and anonymity; and certificateless public key cryptosystem can not only solve the problem of key escrow, but also do not need the management of public key certificates; certificateless ring signature combines the advantages of both of the above mentioned, and has extensive research significance, but most of the existing certificateless ring signature schemes are based on the calculation of bilinear pairings and modular exponentiation, which are computationally expensive and inefficient. In order to improve the efficiency of signature and verification stages, a new Efficient CertificateLess Ring Signature (ECL-RS) scheme was proposed, which used elliptic curve with low computational cost, high security and good flexibility. The security statute of ECL-RS scheme stems from a discrete logarithm problem and a Diffie-Hellman problem, and the scheme is proved to be resistant to public key substitution attacks and malicious key generation center attacks under Random Oracle Model (ROM) with unforgeability and anonymity. Performance analysis shows that ECL-RS scheme only needs (n+2) (n is the number of ring members) elliptic curve scalar multiplication and scalar addition operations as well as (n+3) one-way hash operations, which has lower computational cost and higher efficiency while ensuring security.

Key words: ring signature, elliptic curve, certificateless ring signature, efficiency, Random Oracle Model (ROM)

中图分类号: