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Survey on Multi Authority Attribute Based Encryption for Personal Health Record in Cloud Computing


Vahidhunnisha J, Ramasamy S, Balasubramaniam T


Vol. 14  No. 12  pp. 51-55


Personal Health Record (PHR) service is an emerging model for health information exchange. PHR system allows patients to create, control manage, and share their health information with other users as well as healthcare providers like Google eHealth. A PHR service is likely to be hosted by third-party cloud service providers in order to enhance its interoperability. The access control and privacy management is a complex task in the patient health record management process. Data owners update the personal data into third party cloud data centers. Issues such as risks of privacy exposure, scalability in key management, data loss, flexible access efficient user revocation and data theft, have remained the most important .To achieve fine-grained and scalable data access control for PHRs, Attribute Based Encryption (ABE) techniques to encrypt each patient’s PHR file. In Key Policy Attribute-Based Encryption (KP-ABE), a single data owner can encrypt her data and share with multiple authorized users by distributing keys to them. KP-ABE achieves low amortized overhead. Multiple data owners can access the same data values. Multi authority attribute based encryption could be further enhanced to proactive Multi authority attribute based encryption


Personal Health Records, Cloud Computing, Data Privacy, Fine-grained access control, Multi-authority Attribute Based Encryption