Research On The Blockchain-based Adaptive Four-branch Expansion Model For The Individual Needs Of Enterprises

With the rapid development of the economy in the information era,the scales of data such as business activities and financial transactions of enterprises have increased exponentially,and the demands for efficient data storage and security protection have surged.Due to its decentralization and tamper-proof characteristics,blockchain technology can solve the problems of data storage and security.Therefore,it is widely used in enterprise transaction activities,product traceability and other fields.How to enable blockchain technology to meet the individual needs of different types of enterprises is of great significance to promote the digitization of the information industry and the rapid development of enterprise security technology applications.Since there is no unified specification or standard for the application of blockchain technology in the application of enterprise personalized needs,it still needs to be continuously improved in terms of storage efficiency and security protection.Therefore,how to further improve the storage efficiency to meet the storage requirements of enterprises’ personalized data and ensure the storage security of data has become a hot and difficult point of current research.In terms of enterprise personalized data storage,since different enterprises have different requirements on the throughput,efficiency,and block generation time of data on-chain storage,the expansion of existing blockchain systems is mostly only by increasing the block size,shorting the block creation delay and other methods to meet the different needs of different enterprises as much as possible.However,increasing the width of single-channel data transmission is ineffective,and it is easy to cause network congestion and stagnation.In terms of data security protection,the current blockchain system mainly focuses on smart contract detection,hidden addresses,etc.,But only for a specific structure,the effectiveness is insufficient.To sum up,the existing blockchain storage methods are insufficient for capacity expansion and for data storage security,and cannot meet the individual application needs of different enterprises.Therefore,this paper deeply studies the achievements of blockchain expansion and security protection,aims at the shortcomings of existing methods,and proposes a blockchain adaptive four-branch expansion model for the individual needs of enterprises.The main research work and innovation points of this paper are as follows:（1）Propose an enterprise personalized four-degree branch adaptive expansion structure.First,a personalized ternary storage structure for enterprises is designed,which can significantly improve the efficiency of data storage through data distribution and task distribution on the blockchain.Secondly,a four-branch chain structure is proposed,which is based different needs.Aiming at the incompatibility of four-branch chains due to structural differences,a four-degree chain rotation mechanism is proposed to achieve smooth switching between structural chains.（2）Propose an adaptive fork expansion mechanism.After the blockchain has limited forks to increase the storage rate,it aggregates the branch computing power by rolling back.And at the same time,each branch adaptively increases the moderate block size to achieve stable periodic expansion.（3）Propose model security constraints.The security analysis of the four-branch expansion model is carried out,and based on the security analysis,the security constraints that are instructive for the practical application of the blockchain are constructed.（4）Experiments are performed on multiple datasets and compared with several major blockchain expansion methods.The experimental results show that the method proposed in this paper is superior to the existing methods in terms of storage rate,effective data rate,deterministic delay,consistency and stability.And it can effectively support the blockchain storage of enterprise personalized data.