Overview of Medical Data Privacy Protection based on Blockchain Technology

With the increasing growth of electronic medical data, the difficulties of data sharing among medical institutions and the leakage of data privacy have become the focus of the public and medical workers. The blockchain has the characteristics of decentralization, traceability, and immutability, which can provide new ideas for fine-grained secure access to medical research. This article first introduces blockchain and blockchain-based privacy protection technology; then analyzes the advantages and disadvantages of electronic medical records, and introduces the current development status of electronic medical records based on blockchain technology; then from data encryption, access the three aspects of control and transaction anonymity introduce the medical data privacy protection method based on blockchain technology; finally, the full text is summarized and prospected.