Personal Health Record Using Cloudcomputing Technology

Abstract

Personal Health Record (PHR) empowers the patient to deal with their own therapeutic records in a digitalized and centralized path, which extraordinarily facilitates the storage, access, and sharing of PHR with the development of cloud computing. PERSONAL HEALTH RECORD contains sensitive knowledge that ought to be protected against unauthorized users. In this paper, a novel technique is proposed for access control of PHRs, and leverage RSA (Rivest, Shamir, Adleman) algorithm is used to encrypt each patient's PHR file. Other than the previous works related to secure data outsourcing, focus is made on the multiple data owner scenarios and dividing the users in the PHR system into multiple security domains that significantly reduce the critical management complexity for owners and users. A high degree of patient privacy is guaranteed simultaneously by exploiting multi-authority ABE. This method enables dynamic modification of access policies or file attributes, supports efficient on-demand user/attribute revocation and break-glass access under emergency scenarios.