1（University of Chinese Academy of Sciences,Beijing 100049,China）2（Shenyang Institute of Computer Technology,Chinese Academy of Sciences,Shenyang 110168,China）3（Shenyang Ligong University,Shenyang 110159,China
Abstract：With the development of Internet of Things technology,the structure of Internet of Things is becoming more and more complex,the amount of data collected shows explosive growth,thus how to safely share data between different participants has become a huge challenge. The traditional data sharing model is often dependent on the trusted third party centralized organization,but this scheme is likely to cause a single point of failure,is not transparent to participants,and data may be tampered with. To tackle this problem,we propose a data sharing model for Internet of Things based on blockchain,which uses the feature that blockchain can establish trust without any centralized organization. We first analyze the existing data sharing models of Internet of Things and the key concepts of Hyperledger Fabric blockchain platform. After that,the design of gateway and the content of data stored in blockchain ledger are illuminated,the enhancement methods of security and data privacy are proposed. Finally,the security and availability of the model are analyzed,and the feasibility of the model is proved by simplified testing.
于金刚,张弘,李姝,毛立爽,姬鹏翔. 基于区块链的物联网数据共享模型[J]. 小型微型计算机系统, 2019, 40(11): 2324-2329.
YU Jingang,ZHANG Hong,LI Shu,MAO Lishuang,JI Pengxiang. Data Sharing Model for Internet of Things Based on Blockchain. Journal of Chinese Computer Systems, 2019, 40(11): 2324-2329.
2019, Vol. 40 
