By the same authors

Private naive bayes classification of personal biomedical data: Application in cancer data analysis

Research output: Contribution to journalArticle



Publication details

JournalComputers in biology and medicine
DateAccepted/In press - 22 Nov 2018
DateE-pub ahead of print - 24 Dec 2018
DatePublished (current) - 1 Feb 2019
Number of pages7
Pages (from-to)144-150
Early online date24/12/18
Original languageEnglish


Clinicians would benefit from access to predictive models for diagnosis, such as classification of tumors as malignant or benign, without compromising patients' privacy. In addition, the medical institutions and companies who own these medical information systems wish to keep their models private when in use by outside parties. Fully homomorphic encryption (FHE) enables computation over encrypted medical data while ensuring data privacy. In this paper we use private-key fully homomorphic encryption to design a cryptographic protocol for private Naive Bayes classification. This protocol allows a data owner to privately classify his or her information without direct access to the learned model. We apply this protocol to the task of privacy-preserving classification of breast cancer data as benign or malignant. Our results show that private-key fully homomorphic encryption is able to provide fast and accurate results for privacy-preserving medical classification.

Bibliographical note

Copyright © 2019 Elsevier Ltd. All rights reserved.

    Research areas

  • Data privacy, Fully homomorphic encryption, Medical information systems, Predictive models, cryptographic protocols

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