Blockchain for Health IoT: A privacy-preserving data sharing system

【Author】 Chen, Songling; Fu, Xiangling; Si, Hongchao; Wang, Yi; Gao, Songfeng; Wang, Chunyuan

【Source】SOFTWARE-PRACTICE & EXPERIENCE

【影响因子】3.200

【Abstract】Health Internet of Things (Health IoT) has been limited by isolated information and a lack of security. As the combination of blockchain and Health IoT could potentially address these two limitations, it has attracted significant interest. However, blockchain-based systems often fail to balance data sharing and privacy protection. Therefore, we proposed a Health IoT-based privacy-preserving data sharing blockchain system. We designed a privacy-preserving method based on the content extraction signature scheme to enable patients to establish fine-grained privacy protection. We designed a Byzantine fault-tolerant leader election mechanism that enhances the security of the Raft algorithm while providing efficiency in the data sharing. Furthermore, we designed a summary contract to ensure efficient data retrieval. The proposed mechanism was evaluated in terms of the efficiency and security. The simulation and analysis results demonstrate that our scheme offers a secure and effective technique for achieving privacy-preserving and efficient sharing of IoT medical data.

【Keywords】blockchain; data sharing; healthcare; Internet of Things (IoT); privacy-preserving; Raft algorithm

【发表时间】

【收录时间】2022-06-26

【文献类型】实证性文章

【主题类别】

区块链应用-实体经济-医疗领域