A secure healthcare data sharing scheme based on two-dimensional chaotic mapping and blockchain

【Author】 Xu, Zhigang; Zheng, Enda; Han, Hongmu; Dong, Xinhua; Dang, Xiaohong; Wang, Zhongpeng

【Source】SCIENTIFIC REPORTS

【影响因子】4.996

【Abstract】Enhancing data privacy security in medical data sharing is crucial for the informatization development in the healthcare sector. This paper proposes a healthcare data sharing scheme based on two-dimensional chaotic mapping and blockchain (2DCM-DS). Specifically, a new two-dimensional chaotic mapping is proposed, which demonstrates superior chaotic performance. Then, by incorporating biometric audio information as an identity credential and integrating it with the proposed two-dimensional chaotic mapping, we design a data encryption method that establishes a strongly coupled and bi-directionally verifiable data ownership relationship in healthcare data sharing. Finally, we employ blockchain as the underlying network and design corresponding smart contracts to support 2DCM-DS. This approach addresses potential issues of unauthorized access, malicious tampering, and single points of failure in centralized data sharing. Experimental results demonstrate that 2DCM-DS effectively protects data security under the specified attack models. The results validate the security and efficiency of the 2DCM-DS, proving its application potential in healthcare insurance data sharing scenarios.

【Keywords】Medical data sharing; Two-dimensional chaotic mapping; Privacy; Blockchain; Smart contracts

【发表时间】2024 OCT 8

【收录时间】2024-10-27

【文献类型】案例研究

【主题类别】

区块链应用-实体经济-医疗领域