Privacy-Preserving Search over Encrypted Personal Health Record in Multi-Source Cloud

Abstract

Cloud-based Personal Health Record frameworks (CB-PHR) have incredible potential in encouraging the administration of individual wellbeing records. Security and protection concerns are among the principle obstructions for the wide appropriation of CB-PHR frameworks. In this paper, we consider a multi-source CB-PHR framework in which various information suppliers, for example, emergency clinics and doctors are approved by singular information proprietors to transfer their own wellbeing information to an untrusted open cloud. The wellbeing information are submitted in a scrambled structure to guarantee information security, and every datum supplier likewise submits encoded information files to empower inquiries over the encoded information. We propose a novel Multi-Source Order-Preserving Symmetric Encryption (MOPSE) conspire whereby the cloud can consolidate the scrambled information files from numerous information suppliers without realizing the record content. MOPSE empowers proficient and security protecting inquiry preparing in that an information client can present a solitary information question the cloud can process over the scrambled information from every single related datum suppliers without realizing the question content. We likewise propose an upgraded plan, MOPSE+, to all the more effectively bolster the information questions by progressive information suppliers. Broad examination and investigations over genuine datasets show the adequacy and productivity of MOPSE and MOPSE+.