Homomorphic Encryption and Federated Learning based Privacy-Preserving CNN Training: COVID-19 Detection Use-Case

Wibawa F., Catak F. O., Kuzlu M., Sarp S., Cali U.

2022 European Interdisciplinary Cybersecurity Conference, EICC 2022, Virtual, Online, İspanya, 15 - 16 Haziran 2022, ss.85-90 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1145/3528580.3532845
  • Basıldığı Şehir: Virtual, Online
  • Basıldığı Ülke: İspanya
  • Sayfa Sayıları: ss.85-90
  • Anahtar Kelimeler: Federated learning, Homomorphic encryption, Secure multi-party computation, Sensitive health data
  • Yozgat Bozok Üniversitesi Adresli: Hayır

Özet

Medical data is often highly sensitive in terms of data privacy and security concerns. Federated learning, one type of machine learning techniques, has been started to use for the improvement of the privacy and security of medical data. In the federated learning, the training data is distributed across multiple machines, and the learning process is performed in a collaborative manner. There are several privacy attacks on deep learning (DL) models to get the sensitive information by attackers. Therefore, the DL model itself should be protected from the adversarial attack, especially for applications using medical data. One of the solutions for this problem is homomorphic encryption-based model protection from the adversary collaborator. This paper proposes a privacy-preserving federated learning algorithm for medical data using homomorphic encryption. The proposed algorithm uses a secure multi-party computation protocol to protect the deep learning model from the adversaries. In this study, the proposed algorithm using a real-world medical dataset is evaluated in terms of the model performance.