摘要
区块链是近年来出现了一项分布式共识技术,基于区块链共识协议结合智能合约技术可实现去中心化的数据共享。隐私保护是数据共享中的关键特性,原生区块链没有解决隐私保护问题。利用数字摘要匹配算法提出了一种数据共享协议,该协议通过数字摘要空间的信息匹配,可在保护数据隐私的情况下实现数据的受控共享。基于协议的运行逻辑,分析了协议执行的正确性,参与双方可实现数据交换共享。针对数据共享中的面临的安全威胁,给出了安全性分析。
The blockchain is a distributed consensus technology in recent years.Based on blockchain consensus protocol combined with smart contract technology,decentralized data sharing can be realized.Privacy protection is a key feature in data sharing,and native blockchains can not address the problem of privacy protection.A data sharing protocol is proposed by using digital digest matching algorithm,and this protocol,via information matching in the digital digest space,can realize controlled sharing of data while protecting data privacy.Based on the operation logic of the protocol,the correctness of protocol implementation is analyzed,and data exchange and sharing between the participants can be realized.In view of the security threats faced by data sharing,security analysis is given.
作者
郭乃网
倪玮栋
GUO Nai-wang;NI Wei-dong(State Grid Shanghai Electric Power Research Institute,State Grid Shanghai Municipal Electric Power Company,Shanghai 200437,China;College of Information Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)
出处
《通信技术》
2019年第8期1982-1986,共5页
Communications Technology
关键词
区块链
智能合约
隐私保护
数据共享
数字摘要
blockchain
smart contract
privacy protection
data sharing
digital digest
