摘要
区块链作为一种去中心化、分布式存储的对等网络技术,近年来在各种互联网交互技术中得以应用.但区块链上存在的隐私保障缺陷限制其发展,并造成一定的风险.首先对区块链按数据结构、节点网络进行介绍,再重点对区块链交易中的账户地址、交易内容、网络节点、节点通信进行隐私安全分析.接着,从地址混淆、内容隐藏、网络保护、通信隔离4 个方面叙述现有的区块链隐私保护技术,最后从现有技术的应用和实践出发对区块链安全和效率、监管和保护进行总结和展望.
Abstract
Blockchain,as a decentralized,distributed storage peer-to-peer network technology,has been applied to various Internet interactive scenarios in recent years.However,the privacy protection flaws existing in blockchains limit its development and cause certain risks.First,we elaborate blockchains'data structure and node network,and then analyze the privacy and security issues regarding the account address,transaction content,network nodes,and node communication in blockchain transactions.Second,the existing blockchain privacy protection technology is described from four aspects:address obfuscation,content hiding,network protection,and communication isolation.Finally,we summarize the security and efficiency,supervision and protection of blockchains in terms of current application and practice of the existing technology,and provide future development of blockchain transactions.
维普
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