徐海霞,
1.中国科学院信息工程研究所信息安全国家重点实验室 北京 100093
2.中国科学院数据与通信保护研究教育中心 北京 100093
3.中国科学院大学网络空间安全学院 北京 100049
基金项目:国家重点研发计划(2017YFB0802500)，北京市科技计划(Z191100007119007)，山东省重大科技创新工程(2019JZZY020129)
详细信息
作者简介:李佩丽：女，1988年生，助理研究员，研究方向为密码学、区块链隐私保护与监管
徐海霞：女，1973年生，副研究员，研究方向为安全多方计算、区块链隐私保护与监管、共识机制
通讯作者:徐海霞 xuhaixia@iie.ac.cn
中图分类号:TP311计量
文章访问数:2551
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被引次数:0
出版历程
收稿日期:2019-10-22
修回日期:2020-01-20
网络出版日期:2020-02-25
刊出日期:2020-06-04
Blockchain User Anonymity and Traceability Technology
Peili LI,Haixia XU,
1. Institute of Information Engineering of Chinese Academy of Sciences, Beijing 100093, China
2. Data Assurance and Communication Security Research Center of Chinese Academy of Sciences, Beijing 100093, China
3. School of Cyber Security, University of Chinese Academy of Sciences, Beijing 100049, China
Funds:The National Key R&D Program of China (2017YFB0802500), Beijing Municipal Science and Technology Project (Z191100007119007), The Major Science and Technology Innovation Project of Shandong Province (2019JZZY020129)
摘要
摘要:区块链具有透明性、数据完整性、防篡改等优点，在金融、政府、军事等领域有重要应用价值。目前有越来越多的工作研究区块链的隐私保护问题，典型的包括门罗币、Zerocash, Mixcoin等等。这些隐私保护方法可以用于保护区块链上用户的身份和交易的金额。隐私保护方案是双刃剑，一方面是对合法用户隐私的完善保护，另一方面如果完全脱离监管，则是对洗钱、勒索等违法犯罪行为的姑息和纵容。针对区块链上各种层出不穷的隐私保护方案，监管也要与时俱进。该文研究区块链用户身份的隐私保护和监管方法，提出了用户匿名和可追踪的技术，旨在推动区块链在实际中的应用。
关键词:区块链/
匿名/
追踪/
群签名
Abstract:Blockchain has the advantages of transparency, data integrity, tamper resistance, etc., and has important application value to the fields of finance, government, and military. There are many work to study the privacy protection of the blockchain, typically including Monero, Zerocash, Mixcoin, and more. Their privacy protection methods can be used to protect the identity of the user and the amount of the transaction. The privacy protection scheme is a double-edged sword. On the one hand, it is the perfect protection of the privacy of legitimate users. On the other hand, if it is completely out of supervision, it is the appeasement and connivance of illegal crimes such as money laundering and extortion. In response to the various endangered privacy protection schemes on the blockchain, regulation must also keep pace with the times. In view of this, the privacy protection and supervision methods of blockchain user’s identity is studied, and anonymity and traceability technology to promote the application of blockchain to practice is proposed.
Key words:Blockchain/
Anonymity/
Traceability/
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