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Federated Learning (FL) exhibits privacy vulnerabilities under gradient inversion attacks (GIAs), which can extract private information from individual gradients. To enhance privacy, FL incorporates Secure Aggregation (SA) to prevent the…

Cryptography and Security · Computer Science 2024-06-25 Zhibo Wang , Zhiwei Chang , Jiahui Hu , Xiaoyi Pang , Jiacheng Du , Yongle Chen , Kui Ren

Federated Learning (FL) is a decentralized machine learning approach where client devices train models locally and send them to a server that performs aggregation to generate a global model. FL is vulnerable to model inversion attacks,…

Cryptography and Security · Computer Science 2024-05-03 Niousha Nazemi , Omid Tavallaie , Shuaijun Chen , Albert Y. Zomaya , Ralph Holz

Deploying federated learning (FL) in real-world scenarios, particularly in healthcare, poses challenges in communication and security. In particular, with respect to the federated aggregation procedure, researchers have been focusing on the…

Cryptography and Security · Computer Science 2024-09-04 Riccardo Taiello , Sergen Cansiz , Marc Vesin , Francesco Cremonesi , Lucia Innocenti , Melek Önen , Marco Lorenzi

Secure linear aggregation is to linearly aggregate private inputs of different users with privacy protection. The server in a federated learning (FL) environment can fulfill any linear computation on private inputs of users through the…

Cryptography and Security · Computer Science 2021-11-23 Haibo Tian , Fangguo Zhang , Yunfeng Shao , Bingshuai Li

Federated learning (FL) is well-suited to 5G networks, where many mobile devices generate sensitive edge data. Secure aggregation protocols enhance privacy in FL by ensuring that individual user updates reveal no information about the…

Cryptography and Security · Computer Science 2025-05-13 Yiwei Zhang , Rouzbeh Behnia , Imtiaz Karim , Attila A. Yavuz , Elisa Bertino

Secure aggregation usually aims at securely computing the sum of the inputs from $K$ users at a server. Noticing that the sum might inevitably reveal information about the inputs (when the inputs are non-uniform) and typically the users…

Information Theory · Computer Science 2023-07-26 Hua Sun

Secure model aggregation is a key component of federated learning (FL) that aims at protecting the privacy of each user's individual model while allowing for their global aggregation. It can be applied to any aggregation-based FL approach…

Machine Learning · Computer Science 2022-02-03 Jinhyun So , Chaoyang He , Chien-Sheng Yang , Songze Li , Qian Yu , Ramy E. Ali , Basak Guler , Salman Avestimehr

Privacy-preserving aggregation is a cornerstone for AI systems that learn from distributed data without exposing individual records, especially in federated learning and telemetry. Existing two-server protocols (e.g., Prio and successors)…

Cryptography and Security · Computer Science 2026-03-23 Harish Karthikeyan , Antigoni Polychroniadou

Federated learning (FL) is an emerging paradigm that allows a central server to train machine learning models using remote users' data. Despite its growing popularity, FL faces challenges in preserving the privacy of local datasets, its…

Cryptography and Security · Computer Science 2025-05-09 Natalie Lang , Nir Shlezinger , Rafael G. L. D'Oliveira , Salim El Rouayheb

Secure Aggregation (SA) is an indispensable component of Federated Learning (FL) that concentrates on privacy preservation while allowing for robust aggregation. However, most SA designs rely heavily on the unrealistic assumption of…

Cryptography and Security · Computer Science 2025-05-21 Tian Wen , Sheng Sun , Yuwei Wang , Peiyan Chen , Zhiyuan Wu , Min Liu , Bo Gao

Smart metering infrastructure (SMI) is the core component of the smart grid (SG) which enables two-way communication between consumers and utility companies to control, monitor, and manage the energy consumption data. Despite their salient…

Networking and Internet Architecture · Computer Science 2019-07-23 Sahil Garg , Kuljeet Kaur , Georges Kaddoum , François Gagnon , Syed Hassan Ahmed , Dushantha Nalin K. Jayakody

Scaling Federated Learning (FL) to billion-parameter models forces a challenging trade-off between privacy, scalability, and model utility. Existing solutions often tackle these challenges in isolation, sacrificing accuracy, relying on…

Machine Learning · Computer Science 2026-05-12 Dario Fenoglio , Pasquale Polverino , Jacopo Quizi , Martin Gjoreski , Akash Dhasade , Marc Langheinrich

Secure aggregation is concerned with the task of securely uploading the inputs of multiple users to an aggregation server without letting the server know the inputs beyond their summation. It finds broad applications in distributed machine…

Information Theory · Computer Science 2026-01-16 Xiang Zhang , Kai Wan , Hua Sun , Shiqiang Wang , Mingyue Ji , Giuseppe Caire

Decentralized secure aggregation (DSA) considers a fully-connected network of $K$ users, where each pair of users can communicate bidirectionally over an error-free channel. Each user holds a private input, and the goal is for each user to…

Information Theory · Computer Science 2025-12-19 Zhou Li , Xiang Zhang , Giuseppe Caire

Secure aggregation protocols ensure the privacy of users' data in federated learning by preventing the disclosure of local gradients. Many existing protocols impose significant communication and computational burdens on participants and may…

Cryptography and Security · Computer Science 2024-11-12 Rouzbeh Behnia , Arman Riasi , Reza Ebrahimi , Sherman S. M. Chow , Balaji Padmanabhan , Thang Hoang

Federated Learning (FL) allows parties to learn a shared prediction model by delegating the training computation to clients and aggregating all the separately trained models on the server. To prevent private information being inferred from…

Machine Learning · Computer Science 2022-05-13 Kwing Hei Li , Pedro Porto Buarque de Gusmão , Daniel J. Beutel , Nicholas D. Lane

Self-attention has become increasingly popular in a variety of sequence modeling tasks from natural language processing to recommendation, due to its effectiveness. However, self-attention suffers from quadratic computational and memory…

Information Retrieval · Computer Science 2021-06-01 Yongji Wu , Defu Lian , Neil Zhenqiang Gong , Lu Yin , Mingyang Yin , Jingren Zhou , Hongxia Yang

Recent attacks on federated learning demonstrate that keeping the training data on clients' devices does not provide sufficient privacy, as the model parameters shared by clients can leak information about their training data. A 'secure…

Cryptography and Security · Computer Science 2020-09-24 Swanand Kadhe , Nived Rajaraman , O. Ozan Koyluoglu , Kannan Ramchandran

To prevent private training data leakage in Fed?erated Learning systems, we propose a novel se?cure aggregation scheme based on seed homomor?phic pseudo-random generator (SHPRG), named SASH. SASH leverages the homomorphic property of SHPRG…

Cryptography and Security · Computer Science 2022-08-23 Zizhen Liu , Si Chen , Jing Ye , Junfeng Fan , Huawei Li , Xiaowei Li

Federated learning is a collaborative method that aims to preserve data privacy while creating AI models. Current approaches to federated learning tend to rely heavily on secure aggregation protocols to preserve data privacy. However, to…

Cryptography and Security · Computer Science 2022-11-14 John Reuben Gilbert