Blockchain-based attribute-based keyword searchable encryption for health cloud system Online publication date: Thu, 30-Mar-2023
by Fan Zhang; Yinghui Zhang; Gang Han
International Journal of Embedded Systems (IJES), Vol. 15, No. 6, 2022
Abstract: The application of electronic information technology in medical treatment has become more and more popular, but there are also many challenging problems, exemplified by data forgery and tampering in data sharing. This paper proposes a blockchain-based attribute-based keyword searchable encryption scheme for health cloud systems, which solves some problems of privacy disclosure and data tampering in data sharing. Firstly, by using attribute-based encryption with keyword search technology, users can share search capabilities in a fine-grained way, and if their attributes are changed, their access permission will be revoked in time. Besides, we introduce blockchain and digital signature technologies to ensure the correctness and integrity of data. We encrypt the access policy to prevent privacy disclosure in the access structure. Finally, security analysis and simulation experiments show that our scheme is secure and effective, and the efficiency of search is improved by approximately 40% compared with ABKS-HD.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Embedded Systems (IJES):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook