区块链隐私威胁及保护机制研究综述  

Review on privacy threats and protection mechanisms for blockchain technology

作　　者：刘海鸥[1,2,3] 周颖玉 周鑫 谢津 LIU Haiou;ZHOU Yingyu;ZHOU Xin;XIE Jin(School of Economics and Management,Yanshan University,Qinhuangdao 066004,China;Business School,Nankai University,Tianjin 300191,China;School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学经济管理学院,河北秦皇岛066004 [2]南开大学商学院,天津300191 [3]燕山大学信息科学与工程学院,河北秦皇岛066004

出　　处：《计算机集成制造系统》2023年第7期2292-2312,共21页Computer Integrated Manufacturing Systems

基　　金：国家社科基金资助项目(21BTQ081)。

摘　　要：作为构建可信网络、实现价值互联的分布式新型计算范式,区块链以其去中心化、访问可控化和可匿名性等特征驱动传统行业新一轮的技术变革和应用创新,但同时也面临着严峻的隐私泄露威胁。通过梳理近年来与区块链隐私相关的研究成果,比较分析了区块链面临的账户隐私、交易隐私和通信隐私等隐私威胁,从隐私保护机制的角度探讨了区块链中的混币机制、信息隐藏机制和通道隔离机制。研究发现,区块链在隐私保护方面有较好的应用前景,但其面临的隐私威胁表明区块链隐私保护技术仍有改进空间,并从4个角度展望了区块链隐私保护未来的发展方向,为区块链隐私保护技术的持续探索与深入研究提供思路与参考。As a new distributed computing paradigm for building trusted networks and realizing value interconnection,blockchain drives a new round of technological change and application innovation in traditional industries with its features of decentralization,access controllability and anonymity.However,there is still a serious threat of privacy breaches.By sorting out the research results related to blockchain privacy in recent years,the privacy threats faced by the blockchain were compared and assessed,such as account privacy,transaction privacy and communication privacy,and the currency mixing mechanism,information hiding mechanism and channel isolation mechanism in the blockchain were analyzed from the perspective of privacy protection mechanism.The blockchain had good application prospects in privacy protection,but the privacy threats indicated that there was still room for improvement in blockchain privacy protection technology.The future development of blockchain privacy protection was prospected from four perspectives,and it provided ideas and references for the continuous exploration and in-depth research of blockchain privacy protection technology.

关 键 词：区块链 隐私威胁 隐私保护机制 混币机制 通道隔离 

分 类 号：TP309[自动化与计算机技术—计算机系统结构] TP311.13[自动化与计算机技术—计算机科学与技术]