Medical data sharing method, device and system based on cloud server and block chain

Abstract

The embodiment of the invention provides a medical data sharing method, device and system based on a cloud server and a block chain. The method comprises the steps that a block chain obtains a searchtrap door converted based on a search request containing target keyword information, according to the search trap door and the stored primary encryption keyword information, target object informationcorresponding to the target keyword information is determined, a visitor sends access encryption information to a target object shown by the target object information, and the target object generatesre-encryption information based on the access encryption information of the visitor and the object encryption information of the target object; and the cloud server acquires the re-encrypted information, and re-encrypts the primary encrypted medical record information according to the re-encrypted information and the stored primary encrypted medical record information, so that the visitor can continue to decrypt the primary encrypted medical record information to acquire the medical record information after decrypting the re-encrypted medical record information according to the access encrypted information and the object encrypted information. According to the invention, safe sharing of electronic medical record information can be realized.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a medical data sharing method, device and system based on a cloud server and blockchain. Background technique [0002] With the rapid development of information technology and Internet technology, electronic medical records have become a substitute for traditional paper medical records, solving the problems that paper medical records are easy to lose, difficult to store for a long time, and difficult to carry. Electronic medical records can provide a large amount of reliable data for disease research, and help patients who cannot clearly remember medical history or describe specific diseases. [0003] At present, with the development and application of cloud computing technology, while bringing great convenience to the sharing of electronic medical record information, it also brings many potential dangers. First, data security and privacy protection issues. Electronic...

AI Technical Summary

Problems solved by technology

[0003] At present, with the development and application of cloud computing technology, while bringing great convenience to the sharing of electronic medical record information, it also brings many potential dangers.

First, data security and privacy protection issues

Electronic medical records contain patients' medical data and personal privacy information, which is extremely valuable. Data stored in a third-party centralized database faces the risk of being stolen, leaked, tampered with, and abused, and also faces the problem of a single point of failure

Second, the problem of data dispersion and information islands

Medical data is basically stored separately by regional hospitals. This storage method makes the medical information system island phenomenon very serious, resulting in the uncertainty of information storage and the inability to connect and integrate database resources, which greatly reduces the efficiency of medical information sharing.

Third, the sustainability of resource sharing is poor

Due to the interest competition involving data sharing, third-party institutions such as hospitals, medical research institutes, and clinics cannot share data, and cannot conduct big data analysis and provide personalized services on the premise of patients' authorization to share, lacking a sustainable development model

Images