A blockchain-based medical data preservation scheme for telecare medical information systems
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A blockchain-based medical data preservation scheme for telecare medical information systems Tian-Fu Lee1
· Hong-Ze Li2 · Yi-Pei Hsieh3
© Springer-Verlag GmbH, DE 2020
Abstract With rapid technological development, mobile computing and wireless transmission have become mature. These two technologies can be combined for sharing medical records on social networks, but doing so depends on the secure sharing of a patient’s data between Pervasive Social Network (PSN) nodes. Previous research has revealed that most human sensors cannot support very heavy computation, so the computation on the sensor node must be light. When a legitimate node is intercepted, an attacker may steal shared data of a third party through this intercepted node, causing security problems. Based on the aforementioned 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 protocol uses elliptic curve point multiplication to achieve secure data transfer between human sensors and mobile devices. The latter protocol stores data collected and transferred by mobile devices. The scheme herein is secure against several possible attacks and reduces the number of communication rounds below those of previously developed approaches. The social network information transfer protocol stores data using blockchain technology so that a data owner can authorize access to data by relevant users. Therefore, the proposed scheme improves upon not only the computing performance but also the security of previous approaches. Keywords Blockchain · Medical record · Pervasive social network · Elliptic curve · Key agreement · Merkle tree · TMIS
1 Introduction As a result of rapid technological evolution, social networks have gradually increased the convenience of everyday life, in which they play an important part. Exploiting the convenience of internet technology, telemedicine has gradually replaced traditional modes of treatment in which doctors are
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Tian-Fu Lee [email protected] Hong-Ze Li [email protected] Yi-Pei Hsieh [email protected]
1
Department of Medical Informatics and Institute of Medical Sciences, Tzu Chi University, No. 701, Zhongyang Road, Sec. 3, Hualien 97004, Taiwan
2
Department of Medical Informatics, Tzu Chi University, No. 701, Zhongyang Road, Sec. 3, Hualien 97004, Taiwan
3
Department of Information Technology and Management, Tzu Chi University of Science and Technology, No. 880, Chien-Kuo Road, Sec. 2, Hualien 97005, Taiwan
consulted by patients face-to-face. Electronic medical and health records are now rapidly transmitted between legal users, including doctors, nurses, medical staff, healthcare centers, patients and others. The doctors, nurses and medical staff can then rapidly make accurate decisions. However, the leaking of electronic medical and health records har
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