Abstract
In this article, we analysed the problems of electronic medical records (EMRs) and found that the EMRs generated by different hospitals for the same patient are mutually independent and duplication and data sharing are difficult among hospitals. In order to solve this problem, this paper proposes an efficient and secure cross-domain sharing scheme of EMRs based on edge computing. The program allows the doctor to access the personal history EMRs through the patient’s authorization so that the doctor can understand the patient’s history of illness and, on this basis, generate a new medical record for the patient. Then, the doctor sends the EMRs to the edge server, and the server calculates the ciphertext and adds it to the patient’s personal medical record to complete the case update. Analysis shows that this solution can effectively prevent data tampering and forgery through blockchain and avoid privacy leakage problems in plaintext sharing by using searchable encryption and by relying on edge servers to solve nearby computing tasks and divert the computing capacity of cloud servers to improve efficiency. The security proof shows that the scheme satisfies the complex problem of the BDH assumption. Performance analysis shows that the scheme is feasible and efficient.
Highlights
With the rapid development of the Internet of ings and cloud computing, intelligent systems such as intelligent transportation and smart cities are gradually becoming a hot research topic nowadays [1,2,3]
Compared with paper medical records, EMRs are related to each other, easy to store, more environmentally friendly, and efficient [4, 5]. It effectively solves the problems of paper medical records [3]
In response to the above problems, we propose a personal EMRs system with deduplication based on edge server. e plan is to update the EMRs by the doctors in time through the patient’s authorization with deduplication and complete data update
Summary
With the rapid development of the Internet of ings and cloud computing, intelligent systems such as intelligent transportation and smart cities are gradually becoming a hot research topic nowadays [1,2,3]. With the continuous increase of cloud computing data security issues, it is imperative to upload encrypted data to the cloud server It will face the problem of how to implement ciphertext search when data are shared. Literature [20] constructs a framework based on the blockchain It uses private chains and alliance chains, combined with searchable technology, to realize the safe search of EMRs while ensuring personal privacy and information security. E plan is to update the EMRs by the doctors in time through the patient’s authorization with deduplication and complete data update It is through blockchain and searchable encryption to ensure data and personal privacy security, and the edge server can offload the computing tasks of cloud services to improve computing efficiency
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