Research And Implementation Of Core Technology Of Supply Chain Finance Based On Blockchain

With the rapid development of China’s supply chain finance,the financing difficulties of small and medium-sized enterprises have been effectively solved.However,in the traditional supply chain financial business,the ERP systems of enterprises are not interconnected,so there are some pain points such as information island and difficult to prove the authenticity of transactions.The characteristics of blockchain technology,such as traceability,high transparency and tamper-resistance perfectly fits the pain point of supply chain finance.However,in the practical application of the combination of blockchain and supply chain finance,there are two key problems to be solved:first,the storage space on the blockchain is limited,resulting in the high cost of large-capacity data storage in the supply chain financial business;Second,the transparency and openness of blockchain ledger makes it difficult to protect the business data privacy of supply chain finance.In order to solve the key problems in the integration of blockchain technology and supply chain finance,this paper studies and implements the core technology of supply chain finance based on blockchain.The main work of this paper is as follows:Firstly,a supply chain financial service model based on blockchain is proposed and designed.The overall demand and business process of supply chain financial services based on blockchain is analyzed,the hierarchical architecture of supply chain financial services model based on blockchain is studied and designed,the key technologies of different role nodes and multi-channel in the network layer of the model is deeply studied,and the key algorithms of channel operation is extracted.Based on this model,the core technology of block chain in supply chain finance is deeply studied.Secondly,the core technology and key algorithm of block chain data access in supply chain finance are studied and designed.The blockchain data access model in supply chain finance is proposed.Combined with IPFS technology,the secure storage under the high-capacity data chain is realized,and the data storage capacity of the block chain system is improved.The core algorithm of blockchain data access is designed.Based on the improved CP-ABE algorithm and smart contract,the access control of business data is realized,and the privacy and security problem of business data storage is solved.By comparing with the existing access schemes,the blockchain data access model proposed in this paper is analyzed and evaluated.The evaluation results show that the blockchain data access model designed in this paper has certain advantages in security,function and performance.Thirdly,the supply chain financial service platform system based on blockchain is designed and implemented.Based on Hyperledger Fabric consortium blockchain platform and Spring Boot development framework,combined with the core technology of block chain data access in supply chain finance,the consortium blockchain network is constructed,and the core functional modules of supply chain financial service platform based on blockchain are developed and implemented.Finally,the function and performance of the system are evaluated.The evaluation shows that the operation of the supply chain financial service platform based on blockchain developed in this paper has achieved the expected effect,and also shows that the core technology of supply chain finance based on blockchain proposed in this paper has good feasibility,security and scalability.