Privacy Preserving Health Monitoring Data Using a Proxy Re-encryption

Cloud-assisted mobile health (mHealth) monitoring is a system, which applies the prevailing mobile communications and cloud computing technologies to provide feedback decision support. It has been considered as a revolutionary approach to improving the quality of healthcare service while lowering the healthcare cost. Unfortunately, it also come across a serious risk on both clients’ privacy and intellectual property of monitoring service providers, which may slowdown the wide adoption of mHealth technology. The aim of the paper is to address this important problem and design a cloud-assisted privacy preserving mobile health monitoring system to protect the privacy of the involved parties and their data. Moreover, the involved outsourcing decryption technique and a newly proposed key private proxy re encryption are adapted to shift the computational complexity of the involved parties to the cloud without compromising clients’ privacy and service providers’ intellectual property. Finally, the analysis on security and performance demonstrates the effectiveness of our proposed design.