Autonomous PHR Sharing: A Patient Centric Scalable and Flexible e-Healthcare Framework Bhavani R.1, Suganya K. S.2, Priyanka D. Yazhini2 1Department of Computer Science and Engineering, Bannari Amman Institute of Technology, Erode, India 2Department of Information Technology, Bannari Amman Institute of Technology, Erode, India Online published on 6 September, 2019. Abstract An explosive growth of information technology and the widespread use of cloud computing in every field had paved the way for Personal Health Record (PHR) Systems in cloud computing. Microsoft Healthvault is the best choice of example which is a online personal health record service provided by the technology giant Microsoft where the users can store, access and maintain their personal records which is shared to the health care providers. Some critics argue that moving personal data application in cloud computing may compromise control over data. Hence the need for a secure PHR systems in cloud. Many frameworks for PHR have been proposed using traditional cryptographic techniques. But they lack in the aspect of efficiency, scalability and suitability required by the PHR systems. And also the multi owner scenario of PHR system does not go in with single owner scenario of traditional cryptographic techniques. Hence we propose a PHR framework where the patients have access control and privacy of their personal record using light weight 64 bit block cipher symmetric encryption algorithm and also divide the patient centric framework into multiple security domains to reduce the key distribution complexity. The proposed scheme is flexible as it allows break glass decisions in case of emergency scenario. But the system lacks integrity which can be ensured by using digital signature algorithm or Elliptic Curve Digital Signature Algorithm (ECDSA) scheme to achieve integrity of the personal health records. Top Keywords Personal Health Record, cloud computing, Microsoft Health vault, cryptographic techniques, Symmetric Encryption, break glass. Top |