Research On Key Technologies Of Topic:freight Insurance Business Platform Based On Blockchain

Blockchain is a revolutionary technology that has appeared in recent years.Through the use of data encryption,time stamping,distributed consensus,and economic incentives,it has achieved decentralized and trustless peer-to-peer transactions.Blockchain is now widely used in finance,supply chain and social governance.It can provide solutions for the problems of high cost,low efficiency,insecure data storage,and difficult data sharing in the digitalization of insurance business.Blockchain is essentially a distributed ledger based on P2P network,which guarantees the correctness and consistency of the ledger data through the consensus mechanism.The choice of the consensus mechanism directly affects the performance of the blockchain system.On the premise of ensuring system consistency and security,it is of great practical significance to improve the dynamic and extensibility of the consensus network,and study the consensus mechanism of high throughput,low latency,and low energy consumption.In view of the above research purposes,the following work has been carried out in this paper:(1)The mainstream consensus mechanism of the blockchain is researched and compared,and the practical Byzantine fault tolerance(PBFT)algorithm is researched and analyzed.Three problems of PBFT consensus mechanism are pointed out,which are poor dynamic,no penalty mechanism for Byzantine nodes,and delay caused by frequent view change.(2)The PBFT consensus algorithm is improved,and the improved PBFT consensus algorithm is implemented and validated.By adding the dynamic adding and deleting node strategy,using the primary node selection strategy based on the voting mechanism,and canceling the view change protocol,the dynamic and extensibility of PBFT consensus network was enhanced,and the performance of consensus algorithm was greatly improved.(3)Based on the Hyperledger Fabric project and the improved PBFT consensus mechanism,smart contracts related to freight insurance business were compiled and a freight insurance business platform based on blockchain was developed.The insurance information is open,transparent,safe and reliable,and the automatic claim settlement business is efficient and safe.