Research And Implementation Of Financial Risk Traceability System Based On Hyperleger Fabric

In recent years,with the continuous development of Internet technology,financial institutions are playing a more and more important role in Internet economic activities.Financial risk behaviors in specific financial transactions of financial institutions may pose a serious threat to the survival of the financial institutions.If a financial institution has a business crisis due to poor management,it may pose a threat to the stable operation of the entire financial comprehensive system.At present,financial institutions have a wide range of business coverage,complex operation mode,and the powers and responsibilities of the corresponding regulatory agencies(CSRC,Financial Supervision Bureau,etc.)are inconsistent,which makes the disposal cost of financial risks too high and the work efficiency is low.In addition,since the data of financial institutions has a high value,how to effectively protect financial data has become a hot topic.Therefore,how to realize the traceability of financial risk data while taking into account the security protection of financial data has a high practical application value for Internet economic activities.After analyzing the research status at home and abroad in detail,aiming at the problem of financial risk tracing,a financial risk tracing system based on Hyperledger Fabric alliance chain is designed and implemented.The system builds a composite blockchain model on the basis of Fabric alliance chain to realize adaptive data associative storage under the background of complex data.The advantages of the composite alliance chain model are proved through the comparison test with alliance chains of other structures.At the same time,the IPFS interplanetary file system is introduced as an effective supplement to the alliance chain system,forming the onchain index and off-chain storage of financial transaction behavior data management mode.On this basis,the mixed encryption strategy is adopted for the data stream of IPFS interplanetary file system to ensure the storage security of financial data,effectively ensure the safety of data storage,and ensure the consistency and integrity of data.Finally,the registration verification of company nodes on the private chain is completed by chameleon hash to achieve accurate traceability of risk nodes.Based on the above main innovation work,this paper designs and implements a financial risk traceability system based on complex alliance chain.For financial regulators and ordinary corporate users,the system provides system management,key data storage,financial risk traceability and other functions.Corporate users upload the company’s financial transaction data and the system encrypts the company’s transaction data and stores it in the IPFS interplanetary file system,and encrypts the IP address of the data in IPFS.The relevant information is packaged into nodes in the federated chain module.At the same time,it supports financial regulators to query the trading data of risk companies.It can query all the transaction data of risk companies for a period of time according to the time information to realize the traceability of financial risks.The system adopts Browser/Server architecture,the backend of the system uses Go language for development,and the main functions of the system are realized through gin framework.In addition,by conducting functional tests and performance tests related to related businesses on the financial risk traceability system,the system performance is checked to ensure the smooth realization of basic functions,stable operation and the system can meet the expected standards.