Transaction Database Encryption Technology based on Blockchain Technology

In order to improve the security and reliability of digital asset transaction management, this paper summarizes the current data transaction mode and believes that the ability of data transaction platform to retain transaction data has become a potential threat to both sides of the transaction. A transaction database encryption technology based on blockchain technology and open source and open mechanism is proposed. The whole technology system includes public area, member area and node equipment, and a transaction platform service system is built in the third party. Take the user credit information sharing data standard as an example. It realizes such functions as membership authentication, submission of data index, blockchain generation of shared data index, information query and access, and information supervision. Through the verification of the transaction database encryption technology in this paper, it is found that it can effectively resist malicious tampering and network anomalies, and ensure the security of transaction information data. Combining the test results, it is found that the leader node can trigger an automatic election at each outage, with a success rate of 100% and the average time of about 14.5s.