{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T17:01:24Z","timestamp":1775667684332,"version":"3.50.1"},"reference-count":41,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:00:00Z","timestamp":1760140800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Security and Privacy"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Blockchain technology has emerged as a pivotal solution for securing sensitive data across various domains, including artificial intelligence (AI), supply chain management, cloud computing, and healthcare. Its core attributes, confidentiality, decentralization, security, and privacy, offer significant advantages to the healthcare sector. The integration of Internet of Things (\n                    <jats:styled-content style=\"fixed-case\">IoT<\/jats:styled-content>\n                    ) devices within healthcare systems enhances interoperability, enabling seamless communication between healthcare software and\n                    <jats:styled-content style=\"fixed-case\">IT<\/jats:styled-content>\n                    infrastructure. However, traditional healthcare systems face persistent security challenges, including phishing, masquerading, and identity theft. To address these issues, we propose a secure blockchain\u2010based decentralized application for generating, maintaining, and validating medical certificates. This application facilitates secure interactions among healthcare entities, including hospitals, patients, and\n                    <jats:styled-content style=\"fixed-case\">IoT<\/jats:styled-content>\n                    devices, while ensuring confidentiality, authentication, and access control through smart contracts. The proposed blockchain architecture enhances data integrity and secure transmission using the zero\u2010knowledge proof (\n                    <jats:styled-content style=\"fixed-case\">ZKP<\/jats:styled-content>\n                    ) mechanism. Additionally, we incorporate the interplanetary file system (\n                    <jats:styled-content style=\"fixed-case\">IPFS<\/jats:styled-content>\n                    ) for off\u2010chain data storage to optimize storage costs and enhance security through Ethereum smart contracts. Performance evaluations demonstrate the effectiveness of our approach in mitigating existing security vulnerabilities, thereby offering a robust and scalable solution for secure healthcare data management.\n                  <\/jats:p>","DOI":"10.1002\/spy2.70105","type":"journal-article","created":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T07:10:38Z","timestamp":1760166638000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Secure and Privacy\u2010Preserving Data Sharing in\n                    <scp>6G<\/scp>\n                    \u2010Enabled Blockchain\n                    <scp>IoT<\/scp>\n                    Healthcare Systems"],"prefix":"10.1002","volume":"8","author":[{"given":"Himanshu","family":"Nandanwar","sequence":"first","affiliation":[{"name":"Department of Computer Science and Engineering Delhi Technological University  New Delhi India"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7763-291X","authenticated-orcid":false,"given":"Rahul","family":"Katarya","sequence":"additional","affiliation":[{"name":"Department of Computer Science and Engineering Delhi Technological University  New Delhi India"}]}],"member":"311","published-online":{"date-parts":[[2025,10,11]]},"reference":[{"key":"e_1_2_9_2_1","first-page":"1098","volume-title":"2019 21st International Conference on Advanced Communication Technology (ICACT)","author":"Da\u2010Yu K. 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