{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T15:21:19Z","timestamp":1778340079951,"version":"3.51.4"},"publisher-location":"Singapore","reference-count":18,"publisher":"Springer Nature Singapore","isbn-type":[{"value":"9789811692284","type":"print"},{"value":"9789811692291","type":"electronic"}],"license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>With the continuous development of distributed technology, blockchain has been widely applied to solve practical problems in various fields. Its advantages such as decentralization and non-tamperability perfectly meet the needs of permanent query of traceability scene information, and can solve the trust problem of multi-party participation in various links. At the same time, as data security has received more and more attention. The privacy protection and permission control of \u201con-chain\u201d data need to be resolved. Medical data records are very valuable and sensitive data. Reliable storage and credible traceability are of great significance to the health of patients and the long-term development of medical undertakings. To issue the above problems, here, we propose a secure medical data traceability system that combines data desensitization and attribute-based encryption algorithms to achieve the traceability capabilities and ensure the reliable storage of medical data records on blockchain. Data desensitization provides a certain degree of security for sensitive data involving personal information in medical data. The introduction of attribute encryption has solved the problem of unauthorized access to data. Finally, we analyzed the security of the solution and Verify the efficiency of the program.<\/jats:p>","DOI":"10.1007\/978-981-16-9229-1_2","type":"book-chapter","created":{"date-parts":[[2022,1,21]],"date-time":"2022-01-21T12:03:56Z","timestamp":1642766636000},"page":"27-36","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A Privacy-Preserving Medical Data Traceability System Based on Attribute-Based Encryption on Blockchain"],"prefix":"10.1007","author":[{"given":"Yujuan","family":"Zhao","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baojiang","family":"Cui","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Xu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,1,21]]},"reference":[{"issue":"3","key":"2_CR1","first-page":"46","volume":"26","author":"R Hu","year":"2018","unstructured":"Hu, R., He, Y., Fan, X.: Research on the security technology of medical privacy protection. 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