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。
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.
作者
江沛佩
王骞
陈艳姣
李琦
沈超
JIANG Peipei;WANG Qian;CHEN Yanjiao;LI Qi;SHEN Chao(Key Laboratory of Aerospace Information Security and Trusted Computing,Ministry of Education,Wuhan 430072,China;School of Cyber Science and Engineering,Wuhan University,Wuhan 430072,China;School of Computer Science,Wuhan University,Wuhan 430072,China;Institute for Network Sciences and Cyberspace,Tsinghua University,Beijing 100084,China;Beijing National Research Center for Information Science and Technology,Beijing 100084,China;School of Cyber Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《通信学报》
EI
CSCD
北大核心
2021年第1期151-162,共12页
Journal on Communications
基金
国家重点研发计划基金资助项目(No.2020YFB1005500)
国家自然科学基金资助项目(No.U20B2049,No.61822207,No.61972296,No.61822309,No.61773310)
北京信息科学与技术国家研究中心基金资助项目(No.BNR2020RC0101)。
关键词
区块链安全
智能合约
隐私保护
blockchain security
smart contract
privacy protection
