A Medical Information Service Platform Based on Distributed Cloud and Blockchain

Usually, medical information including physical examination results and treatment of patients is stored in the hospital's centralized database. Although sophisticated access control strategy is adopted, it is still high-risk to expose patients' privacy in complex network environment. Moreover, a practical service platform is missed to share this kind of information under patients' authentication. To solve these problem, we elaborate an efficient and secure medical information service platform based on distributed cloud and blockchain technology, simultaneously guarantee security and confidentiality by hierarchical identity-based broadcast encryption system. Within our proposed framework, medical data are stored on distributed cloud after encryption. An incentive mechanism is designed to encourage customers and miners to maintain the platform. It shows that our platform is safe and effective in practice.