Abstract
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.
Original language | English |
---|---|
Pages (from-to) | 144-150 |
Number of pages | 7 |
Journal | Computers in biology and medicine |
Volume | 105 |
Early online date | 24 Dec 2018 |
DOIs | |
Publication status | Published - 1 Feb 2019 |
Bibliographical note
Copyright © 2019 Elsevier Ltd. All rights reserved.Keywords
- Data privacy
- Fully homomorphic encryption
- Medical information systems
- Predictive models
- cryptographic protocols