Assistant Professor, Department of Computer Science and Engineering, Nehru Institute of Technology, Coimbatore
Currently the popularity of wearable devices is on the increase and along with the development of clouds and cloudlet technology, there has been an ever-increasing need to provide better medical care. The processing sequence of medical data primarily includes data collection, data storage and data sharing, etc. Traditional healthcare system often requires the delivery of medical data to the cloud, which involves users’ sensitive information. Practically, medical data sharing is a critical and challenging issue. In this paper, a novel healthcare system with de-duplication is proposed and implemented incorporating the flexibility of cloudlet. The functions of cloudlet include privacy protection, data sharing and de-duplication. Firstly, the Number Theory Research Unit (NTRU) method is used to protect data during transmission of user’s body data collected from wearable devices to the Cloudlet . Those data will be transmitted to nearby cloudlet in an energy efficient fashion. Secondly, a new trust model to help users to select trustable partners who want to share stored data in the cloudlet is presented. The results demonstrate the effectiveness of the proposed scheme.