Design of a Scalable Blockchain-based IoMT System

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Nourani Boosjin, Mohammad | 2022

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 54901 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Aref, Mohammad Reza; Eghlidos, Taraneh
Abstract:
Managing health data and providing remote treatment services to patients has always faced security and privacy challenges. Because of the importance and sensitivity of this data, the use of centralized networks such as cloud space and trustin a cloud server can be dangerous, due to the lack of complete trust in the cloud server. To prevent the threats of centralized systems, we provide a decentralized blockchain-based system in which miners, in addition to authenticating physicians and patients, are also responsible for searching encrypted data and all user activities can be tracked in the distributed ledger. The proposed scheme preserves data privacy, and there is no need to trust a server. In this scheme, using blockchain has improved the performance of the searchable encryption in the communication between patients and doctors. Moreover, it controls server operations. Using ring signature, not only authenticates users, but also preserves privacy of health data of blockchain users. However, due to the large volume of searchable encryption computations,the proposed scheme is suitable for permissioned blockchain network and private cloud
Keywords:
Searchable Encryption ; Internet of Things ; Privacy ; Blockchain ; Manage Encrypted Data