NDLI: Secure and Reliable Distributed Health Records: Achieving Query Assurance across Repositories of Encrypted Health Data

Content Provider	IEEE Xplore Digital Library
Author	Clarke, A. Steele, R.
Copyright Year	2012
Abstract	Future health information system architectures will intrinsically include distributed systems and data repositories across multiple organizations. As such it will become more important to provide a high level of query quality assurance for the organizations utilizing these distributed and shared data repositories. Query assurance is defined as the data source accurately responding to queries by meeting the requirements of correctness, completeness and freshness. Secure and private health information is a necessity and as one of the significant threats to this security is from insider activities, it will often be desirable that electronic health information be stored in an encrypted format to provide data confidentiality. Providing data confidentially and query assurance within the same approach will be a necessity, while simultaneously ensuring the usability of the health information is not substantially diminished. In this paper, we present a query assurance model that implements the three requirements of query assurance across sources of searchable encrypted data. Further, we consider the issue of freshness and data persistence in a multiple data-owner environment. This is a novel contribution to query assurance and one driven by and increasingly important in the specific context of emerging distributed health information systems. The approach is tested against a large dataset of Continuity of Care Records (CCR) in a key-value store and evaluation results are presented.
Starting Page	3021
Ending Page	3029
File Size	320700
Page Count	9
File Format	PDF
ISBN	9781457719257
ISSN	15301605
e-ISBN	9780769545257
DOI	10.1109/HICSS.2012.515
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Distributed databases Encryption Probabilistic logic Organizations Information systems health data query assurance searchable encryption
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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