智能科学与技术学报 ›› 2022, Vol. 4 ›› Issue (3): 396-409.doi: 10.11959/j.issn.2096-6652.202239

• 学术论文 • 上一篇    下一篇

面向元宇宙的数字公民身份认证方案

吕秋云1, 程绍鹏1, 杨满智2,3, 陈晓光1, 王震1   

  1. 1 杭州电子科技大学网络空间安全学院,浙江 杭州 310018
    2 澳门科技大学,澳门 999078
    3 恒安嘉新(北京)科技股份公司,北京 100086
    4 杭州电子科技大学卓越学院,浙江 杭州 310018
  • 修回日期:2022-07-29 出版日期:2022-09-15 发布日期:2022-09-01
  • 作者简介:吕秋云(1978- ),女,博士,杭州电子科技大学网络空间安全学院副教授、硕士生导师,主要研究方向为身份认证、区块链应用、隐私保护
    程绍鹏(1996- ),男,杭州电子科技大学网络空间安全学院硕士生,主要研究方向为数字身份管理、区块链
    杨满智(1979- ),男,澳门科技大学博士生,恒安嘉新(北京)科技股份公司首席技术官,主要研究方向为网络安全、机器学习
    陈晓光(1982- ),男,澳门科技大学博士生,恒安嘉新(北京)科技股份公司首席执行官,主要研究方向为网络安全、机器学习
    王震(1984- ),男,博士,杭州电子科技大学网络空间安全学院副教授、博士生导师,杭州电子科技大学卓越学院副院长,主要研究方向为人工智能安全、博弈论、多智能体系统和网络科学
  • 基金资助:
    浙江省重点研发计划基金资助项目(2022C01018)

A metaverse-oriented digital citizen authentication scheme

Qiuyun LYU1, Shaopeng CHENG1, Manzhi YANG2,3, Xiaoguang CHEN1, Zhen WANG1   

  1. 1 School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, China
    2 Macau University of Science and Technology, Macao 999078, China
    3 Eversec (Beijing) Technology Co., Ltd., Beijing 100086, China
    4 ZhuoYue Honors College, Hangzhou Dianzi University, Hangzhou 310018, China
  • Revised:2022-07-29 Online:2022-09-15 Published:2022-09-01
  • Supported by:
    The Key Research and Development Program of Zhejiang Province(2022C01018)

摘要:

元宇宙作为虚实融生的三元世界,为人们提供了海量多样化的网络服务,但由于缺乏现实世界的面对面交流且无法打破地理与时间的限制,现有方案无法在高效认证数字公民的同时实现隐私保护与监管。基于此,提出一种面向元宇宙的数字公民身份认证方案。依据身份时效性设计分层认证方案,基于 Paillier 同态加密和保持结构性签名等算法实现去中心化标识符与可验证凭证的双重不可链接,并借助代码嵌入技术保障公民的被遗忘权,保护公民隐私;而且在认证过程中嵌入监管因子,以供日后追责。最后,安全性分析证明了所提方案满足不可链接性、可追溯性;性能分析表明了所提方案具有较低计算成本和Gas开销,可满足实际应用需求。

关键词: 元宇宙, 数字公民, 身份认证, 不可链接性, 可监管, 被遗忘权, 区块链

Abstract:

As a surreal ternary world, the metaverse provides people with massive and diverse network services.However, due to the lack of face-to-face communication in reality and the broken geographical and time constraints, the existing schemes cannot effectively authenticate digital citizens while realizing privacy protection and accountability.Therefore, a metaverse-oriented digital citizen authentication scheme was proposed.Firstly, a layered authentication scheme based on the time-sensitive identity was constructed.Secondly, for protecting citizens’ privacy, the Paillier homomorphic encryption algorithm and structure-preserving signature scheme were introduced to realize the double unlink ability of decentralized identifiers and verifiable credentials, in addition, the citizens’ right to be forgotten was guaranteed by the code embedding technology.Thirdly, the regulatory factor during the authentication phase for accountability was designed.Finally, the security analysis proves that the proposed scheme satisfies the unlinkability and traceability.And, the performance analysis shows that the proposed scheme has lower computational cost and gas overhead, which can meet the needs of practical use.

Key words: metaverse, digital citizen, authentication, unlinkability, accountability, right to be forgotten, blockchain

中图分类号: 

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