A data-sharing scheme that supports multi-keyword search for electronic medical records

Shufen Niu, Wenke Liu, Song Han and Lizhi Fang

PLOS ONE, 2021, vol. 16, issue 1, 1-16

Abstract: As cloud storage technology develops, data sharing of cloud-based electronic medical records (EMRs) has become a hot topic in the academia and healthcare sectors. To solve the problem of secure search and sharing of EMR in cloud platforms, an EMR data-sharing scheme supporting multi-keyword search is proposed. The proposed scheme combines searchable encryption and proxy re-encryption technologies to perform keyword search and achieve secure sharing of encrypted EMR. At the same time, the scheme uses a traceable pseudo identity to protect the patient’s private information. Our scheme is proven secure based on the modified Bilinear Diffie-Hellman assumption and Quotient Decisional Bilinear Diffie-Hellman assumption under the random oracle model. The performance of our scheme is evaluated through theoretical analysis and numerical simulation.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0244979

DOI: 10.1371/journal.pone.0244979

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