Research On Blockchain Accounting Optimization Model Based On Distributed Storage Strategy

As a hot spot in the Internet field,blockchain has attracted lots of attention for it's advantages in information security and access control.It has many features such as tamper-proof and traceable,which is very suitable for the field of digital asset tranfer.Nowadays,blockchain has also differentiated in form to meet the needs of different fields.Such as permissioned blockchain,especially consortium blockchain.The special structural requirements and characteristics of the consortium blockchain determine that it has better trust and security,and it also has a strong advantage over traditional public blockchain in terms of supervision and other aspects.As the basis for building the trust of the blockchain,the consensus algorithm directly determines the performance and security of the blockchain system.But some consensus of existing consortium blockchain accouting system has some problems like low performance and high overhead,and the performance of the accounting system are also affected by these.Therefore,based on consortium blockchain and consensus algorithm,Thesis Research on the optimization mode of bookkeeping through the improvement of consensus algorithm and the innovation of bookkeeping scheme.The main research contents are as follows:(1)Research and design of a new consensus algorithm.Although the classic PBFT algorithm has more advantages than the consensus algorithm in the non-licensed chain in terms of consensus duration and computing power dependence,it also has some problems in security and efficiency,which will hinder the further development of system.Based on the algorithm mechanism of PBFT consensus,Thesis conducts research and design of a new consensus algorithm to realizes the hierarchical collaboration of network consensus.By virtualizing the top-level nodes,Accelerate consensus efficiency through parallel consensus.And improve the insecurity in view switching process.The performance of the algorithm is greatly improved due to the traditional PBFT algorithm.(2)Research and Design of a new accounting scheme.By According to the principle of the new consensus algorithm and considering the actual application environment and network conditions,Targetedly solve the two key issues of the conflict of consensus master node selection and the recording of transactions of different natures to realize the coordinated use of consensus in the accounting scheme.The scheme distinguishes transactions according to the types of transaction parties,Separate and record transactions of different natures in different ways.To some extent,this scheme solve the problem that the storage overhead of the alliance chain is difficult to reduce,And effectively improve the performance of the accounting network.