Please use this identifier to cite or link to this item: http://hdl.handle.net/10609/136566
Title: Achieving security and privacy in federated learning systems: Survey, research challenges and future directions
Author: Blanco Justicia, Alberto
Domingo-Ferrer, Josep  
Martínez Lluís, Sergio
Sánchez Ruenes, David
Flanagan, Adrian
Tan, Kuan Eik
Universitat Oberta de Catalunya (UOC)
Universitat Rovira i Virgili (URV)
Huawei Technologies
Citation: Blanco-Justicia, A. [Alberto], Domingo Ferrer, J. [Josep], Martínez, S. [Sergio], Sánchez Ruenes, D. [David], Flanagan, A. [Adrian] & Tan, K.E. [Kuan Eeik]. (2021). Achieving security and privacy in federated learning systems: Survey, research challenges and future directions. Engineering Applications of Artificial Intelligence, 106(), 1-14. doi: 10.1016/j.engappai.2021.104468
Abstract: Federated learning (FL) allows a server to learn a machine learning (ML) model across multiple decentralized clients that privately store their own training data. In contrast with centralized ML approaches, FL saves computation to the server and does not require the clients to outsource their private data to the server. However, FL is not free of issues. On the one hand, the model updates sent by the clients at each training epoch might leak information on the clients' private data. On the other hand, the model learnt by the server may be subjected to attacks by malicious clients; these security attacks might poison the model or prevent it from converging. In this paper, we first examine security and privacy attacks to FL and critically survey solutions proposed in the literature to mitigate each attack. Afterwards, we discuss the difficulty of simultaneously achieving security and privacy protection. Finally, we sketch ways to tackle this open problem and attain both security and privacy.
Keywords: federated learning
machine learning
privacy
security
DOI: 10.1016/j.engappai.2021.104468
Type: info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Issue Date: 17-Sep-2021
Publication license: http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Appears in Collections:Articles

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