Research on Blockchain Technology for Data Security Sharing
In order to improve the security of blockchain technology,a blockchain data recognition and sharing method based on the modified PBFT algorithm is proposed.The method first improves the main node selection strategy of the PBFT algorithm,selecting the node with the maximum Ti value as the main node,reducing communication with other nodes,reducing communication overhead,avoiding propagation delay,and avoiding malicious nodes becoming the main node,In addition,by setting the block verification stage and generating formal block verification thresholds,the security of data sharing is improved.Finally,simulation analysis was conduc-ted on the algorithm's throughput,communication times,transaction delay,security,and advantages of selecting the main node.The simulation results show that compared to the traditional PBFT algorithm and SG-PBFT algorithm,the proposed improved PBFT algo-rithm significantly improves TPS and has a low probability of transaction delay.The improved PBFT algorithm has significant advanta-ges in processing large-scale data scenarios.Compared to Raft algorithm and Bully algorithm,the algorithm in this study significantly reduces propagation delay and communication overhead.The algorithm proposed in this study provides a reference for the secure iden-tification and sharing of IoT blockchain data.
万方数据
维普
