Using Attribute-Based Encryption with Advanced Encryption Standard for Secure and Scalable Sharing of Personal Health Records in Cloud

Abstract — Personal Health records have emerged as a patient centric service where the health information of a patient is stored on the cloud. It provides an opportunity for the owner to create, manage and share the data on the cloud. But this entails considering the issues of privacy and security. With technological advancement cloud services are being used extensively and there are multiple owners and users of this service. This makes data management complex. This paper focuses on the issues of data access control and security of the health information. It proposes the use of Attribute based Encryption for effective encryption of data; multi authority based ABE to for providing a high degree of privacy. Division of users into multiple domains reduces the complexity of key management. But data and keys on clouds can be intercepted by semi trusted servers. Therefore for high data security Advanced Encryption Standard is used. In addition it is faster on both hardware and software