Efficient Authentication for Securing Electronic Health Records using Algebraic Structure

The trend among healthcare organizations to outsource EHR data to the cloud creates serious privacy concerns for specific individuals. When healthcare organizations outsource their electronic health records (EHRs) to a hybrid cloud, security and privacy concerns arise since EHRs can be accessed by an endless number of people. A hybrid cloud infrastructure combines public and private clouds. The authors of this study took into account the need for a privacy-preserving access restriction. In traditional electronic health records (EHRs), medical information is frequently controlled independently by several hospitals, making information sharing problematic. Information sharing is a challenge with traditional EHRs, which cloud-based EHRs solve. Cloud-based EHRs, on the other hand, have a centralized issue in the shape of a cloud service center and a key-generation center. The authors of this study suggest an algebraic structure-based authentication technique for electronic health data. The authors used a multi-authority identity-based signature technique that is resistant to collusion assaults from N different authorities.