通信学报 ›› 2021, Vol. 42 ›› Issue (1): 151-162.doi: 10.11959/j.issn.1000-436x.2021035

• 综述 • 上一篇    下一篇

区块链网络安全保障:攻击与防御

江沛佩1,2, 王骞1,2, 陈艳姣3, 李琦4,5, 沈超6   

  1. 1 空天信息安全与可信计算教育部重点实验室,湖北 武汉 430072
    2 武汉大学国家网络安全学院,湖北 武汉 430072
    3 武汉大学计算机学院,湖北 武汉 430072
    4 清华大学网络科学与网络空间研究院,北京 100084
    5 北京信息科学与技术国家研究中心,北京 100084
    6 西安交通大学网络空间安全学院,陕西 西安 710049
  • 修回日期:2020-10-21 出版日期:2021-01-25 发布日期:2021-01-01
  • 作者简介:江沛佩(1997- ),女,湖北武汉人,武汉大学博士生,主要研究方向为应用密码学、网络安全等。
    王骞(1980- ),男,湖北武汉人,博士,武汉大学教授、博士生导师,主要研究方向为人工智能安全、云计算安全、无线系统安全、大数据安全与隐私、应用密码学等。
    陈艳姣(1989- ),女,山西代县人,博士,武汉大学研究员,主要研究方向为无线网络资源分配、网络安全、区块链等。
    李琦(1979- ),男,浙江临安人,博士,清华大学副教授、博士生导师,主要研究方向为网络安全、移动安全和大数据安全。
    沈超(1985- ),男,重庆人,博士,西安交通大学教授、博士生导师,主要研究方向为信息物理系统优化与安全、系统与软件安全、人工智能安全等。
  • 基金资助:
    国家重点研发计划基金资助项目(2020YFB1005500);国家自然科学基金资助项目(U20B2049);国家自然科学基金资助项目(61822207);国家自然科学基金资助项目(61972296);国家自然科学基金资助项目(61822309);国家自然科学基金资助项目(61773310);北京信息科学与技术国家研究中心基金资助项目(BNR2020RC0101)

Securing guarantee of the blockchain network:attacks and countermeasures

Peipei JIANG1,2, Qian WANG1,2, Yanjiao CHEN3, Qi LI4,5, Chao SHEN6   

  1. 1 Key Laboratory of Aerospace Information Security and Trusted Computing, Ministry of Education, Wuhan 430072, China
    2 School of Cyber Science and Engineering, Wuhan University, Wuhan 430072, China
    3 School of Computer Science, Wuhan University, Wuhan 430072, China
    4 Institute for Network Sciences and Cyberspace, Tsinghua University, Beijing 100084, China
    5 Beijing National Research Center for Information Science and Technology, Beijing 100084, China
    6 School of Cyber Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China
  • Revised:2020-10-21 Online:2021-01-25 Published:2021-01-01
  • Supported by:
    The National Key Research and Development Program of China(2020YFB1005500);The National Natural Science Foundation of China(U20B2049);The National Natural Science Foundation of China(61822207);The National Natural Science Foundation of China(61972296);The National Natural Science Foundation of China(61822309);The National Natural Science Foundation of China(61773310);Beijing National Research Center for Information Science and Technology(BNR2020RC0101)

摘要:

随着区块链技术的迅猛发展,区块链系统的安全问题正逐渐暴露出来,给区块链生态系统带来巨大风险。通过回顾区块链安全方面的相关工作,对区块链潜在的安全问题进行了系统的研究。将区块链框架分为数据层、网络层、共识层和应用层4层,分析其中的安全漏洞及攻击原理,并讨论了增强区块链安全的防御方案。最后,在现有研究的基础上展望了区块链安全领域的未来研究方向和发展趋势。

关键词: 区块链安全, 智能合约, 隐私保护

Abstract:

While the security of blockchain has been the central concern of both academia and industry since the very start, new security threats continue to emerge, which poses great risks to the blockchain ecosystem.A systematic study was conducted on the most state-of-the-art research on potential security issues of blockchain.Specifically, a taxonomy was developed by considering the blockchain framework as a four-layer system, and the analysis on the most recent attacks against security loopholes in each layer was provided.Countermeasures that can strengthen the blockchain were also discussed by highlighting their fundamental ideas and comparing different solutions.Finally, the forefront of research and potential directions of blockchain security were put forward to encourage further studies on the security of blockchain.

Key words: blockchain security, smart contract, privacy protection

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