Journal
EXPERT SYSTEMS WITH APPLICATIONS
Volume 239, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eswa.2023.122230
Keywords
Internet of medical things; Data security; Medical record searching; Blind signature; ECDLP
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With the rapid development of artificial intelligence, the Internet of Things, and next-generation mobile communication, the Internet of Medical Things (IoMT) has attracted attention as a typical application due to its convenience and practicality. To address privacy preservation issues in accessing patients' records and sensitive information in the IoMT, a secure privacy-preserving medical record search scheme based on ELGamal blind signatures is proposed. An improved scheme based on the elliptical curve discrete logarithm problem is also introduced. The proposed scheme provides enhanced privacy protection, data security, and improved performance.
With the rapid development of artificial intelligence, the Internet of Things and next generation mobile communication, the Internet of Medical Things (IoMT) as a typical application has attracted increasing attention as a typical application thereof owing to its convenience and practicality. To address certain privacy preservation issues concerning accessing patients records from past case databases as well as diagnosed patients' sensitive information on the Internet of Medical Things, an IoMT-secure privacy-preserving medical record search scheme (PMRSS) based on ELGamal blind signatures is proposed. In this paper, we first show that certain security flaws exists in the PMRSS. To address these flaws, we propose an improved privacy protection medical record searching scheme (iPMRSS) in IoMT for intelligent diagnoses based on the elliptical curve discrete logarithm problem (ECDLP). Security analysis demonstrates that our iPMRSS provides correctness, identity privacy is ensured based on the hard problem assumption of Elliptical curve discrete logarithm problem. Data security is satisfied based on the security of the Blind ECDSA Signature. Performance evaluations demonstrate that our theoretical results are consistent with simulations, thereby a comparative analysis with related state of art techniques show that our proposed iPMRSS scheme in about 1.5 ms has shorter time cost under some security level.
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