A Review on security schemes for Electronic Health Records

An electronic health record is a repository of patient’s information in the digital form. Nowadays, EHRs are heavily used instead of paper-based records because of their numerous benefits. But there are security and privacy challenges too while using electronic health records as it includes very sensitive information of patients like symptoms, lab results, diagnoses, immunizations, medications, and diagnostic reports. Various schemes have been designed to resolve the issue of security and privacy of EHRs in the healthcare organisations. This paper reviews the existing schemes which have been proposed to safeguard the security and privacy of EHRs from the malicious attacks. The paper categorizes the existing security schemes into four categories on the basis of security mechanism and present schemes of each category.