A Blockchain based Medical Data Preservation Scheme for Telecare Medical Information Systems

• Main Authors: LI, HONG-ZE, 李宏澤
• Other Authors: LEE, TIAN-FU
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/88p57c

碩士 === 慈濟大學 === 醫學資訊學系碩士班 === 107 === With the rapid development of technology, mobile computing and wireless transmission technologies have developed to a stage of maturity. The combination of these two technologies can achieve the concept of medical record sharing on social networks. In order to realize this idea, the main goal is to securely share the patient's data between pervasive social network (PSN) nodes. Previous research has pointed out that human sensors cannot afford too heavy computations, so the computation on the sensor node is bound to be lighter. In addition, when a legitimate node is intercepted, the attacker may steal the shared data of the third party through the intercepted node, thereby causing security problems. Based on the above mentioned security and performance considerations, this study proposes a blockchain-based medical data preservation scheme for telecare medical information systems (TMISs), which consists of a medical sensor area authentication protocol and a social network information transfer protocol. The former uses elliptic curve point multiplication to achieve secure data transfer between human sensors and mobile devices. The latter stores the data, which is collected and transferred through the mobile devices. Compared with previous related approaches, our scheme is secure against several possible attacks and reduces the number of communication rounds. Additionally, the social network information transfer protocol stores the data by using the blockchain technology so that the data owner can authorize relevant users to access the data. Therefore, the proposed scheme not only enhances the computing performance, but also improves the security problems in previous approaches.