Abstract
With the explosive development of technology and Internet communication, it has become an inevitable trend to realize the secure storage and sharing of electronic medical data among hospitals. In recent researches, there are also many problems in realizing secure storage and sharing of electronic medical data, such as "data silos", leakage of patient sensitive information due to data sharing and having no reliability about the original data uploaded by patients. To solve the above problems, we propose a blockchain-based medical data storage and secure sharing scheme. In the scheme, we utilize IPFS-based Web3.Storage for medical data storage, propose a sensitivity classification and access control strategy for sensitive data leakage and present a blockchain-based original data reliability checking strategy to check the reliability of the original data. Our scheme is explained in detail in the paper, and the performance analysis of this scheme is carried out to prove the feasibility of this scheme.
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