Research on Secure Storage Technology of Spatiotemporal Big Data Based on Blockchain

With the popularity of spatiotemporal big data applications, more and sensitive are generated by users, sharing secure storage faced with many challenges. In response to these challenges, present paper puts forward a new technology called CSSoB (Classified Secure Storage Technology over Blockchain) that leverages blockchain enable classified data. This introduces twofold approach tackle challenges associated First, proposes strategy fragment distribute space–time while enabling both encryption nonencryption operations based on different types. The is enabled via smart contract technology. Second, CSSoB’s single-node performance was assessed under local area network (LAN) conditions, results indicate read surpasses its write performance. addition, were observed increase significantly as file size increased. Finally, transactions per second (TPS) Hadoop Distributed File System (HDFS) compared varying thread numbers. particular, when number set 100, demonstrated TPS improvement 7.8% in comparison HDFS. Given remarkable CSSoB, adoption can not only enhance performance, but also improve security great extent. Moreover, fragmentation processing employed this study enables rapid querying greatly improving capabilities.