Enhancing Security of Attribute Based Encryption For Secure Sharing of Personal Health Records in Cloud Computing

Jerusha Raichie George; Miss Sruthy Manmadhan

Volume : III, Issue : V, May - 2014

Enhancing Security of Attribute Based Encryption For Secure Sharing of Personal Health Records in Cloud Computing

Jerusha Raichie George, Miss Sruthy Manmadhan

Abstract :

Cloud computing, is an emerging computing environment which allows users to remotely store the data in one centralized place. This facilitates on demand scalable services as well as efficient management and sh� of data. Personal health record(PHR) is an emerging patient–centric model of health information exchange, which is often outsourced to be stored at a third party, such as cloud providers and unauthorized parties .To assure the patients� control over access to their own PHRs, a promising method is to encrypt the PHRs before outsourcing. Yet, issues such as risks of privacy exposure, scalability in key management, flexible access and efficient user revocation, have remained the most important challenges toward achieving fine–grained, cryptographically enforced data access control. A novel patient centric framework and a suite of mechanisms for data access control to PHRs stored in semi–trusted server are needed. To achieve fine–grained and scalable data access control for PHRs, Attribute Based Encryption (ABE) technique is used to encrypt each patient�s PHR file. In order to enhance the security an external USB is also used