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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

Secure aggregation is a cryptographic protocol that securely computes the aggregation of its inputs. It is pivotal in keeping model updates private in federated learning. Indeed, the use of secure aggregation prevents the server from…

Machine Learning · Computer Science 2022-09-07 Dario Pasquini , Danilo Francati , Giuseppe Ateniese

Secure aggregation (SecAgg) is a commonly-used privacy-enhancing mechanism in federated learning, affording the server access only to the aggregate of model updates while safeguarding the confidentiality of individual updates. Despite…

Machine Learning · Computer Science 2024-07-16 Khac-Hoang Ngo , Johan Östman , Giuseppe Durisi , Alexandre Graell i Amat

Secure aggregation is a critical component in federated learning (FL), which enables the server to learn the aggregate model of the users without observing their local models. Conventionally, secure aggregation algorithms focus only on…

Machine Learning · Computer Science 2023-07-28 Jinhyun So , Ramy E. Ali , Basak Guler , Jiantao Jiao , Salman Avestimehr

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

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

Federated Learning enables one to jointly train a machine learning model across distributed clients holding sensitive datasets. In real-world settings, this approach is hindered by expensive communication and privacy concerns. Both of these…

Machine Learning · Statistics 2021-10-19 Constance Beguier , Mathieu Andreux , Eric W. Tramel

Leveraging federated learning (FL) to enable cross-domain privacy-sensitive data mining represents a vital breakthrough to accomplish privacy-preserving learning. However, attackers can infer the original user data by analyzing the uploaded…

Cryptography and Security · Computer Science 2023-12-12 Siqing Zhang , Yong Liao , Pengyuan Zhou

Federated learning (FL) enables collaborative model training without sharing raw data, but individual model updates may still leak sensitive information. Secure aggregation (SecAgg) mitigates this risk by allowing the server to access only…

Cryptography and Security · Computer Science 2025-08-19 Takumi Suimon , Yuki Koizumi , Junji Takemasa , Toru Hasegawa

Federated Learning (FL) enables multiple users to collaboratively train a machine learning model without sharing raw data, making it suitable for privacy-sensitive applications. However, local model or weight updates can still leak…

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

We show that aggregated model updates in federated learning may be insecure. An untrusted central server may disaggregate user updates from sums of updates across participants given repeated observations, enabling the server to recover…

Cryptography and Security · Computer Science 2021-06-14 Maximilian Lam , Gu-Yeon Wei , David Brooks , Vijay Janapa Reddi , Michael Mitzenmacher

Federated learning enables collaborative model training across distributed clients, yet vanilla FL exposes client updates to the central server. Secure-aggregation schemes protect privacy against an honest-but-curious server, but existing…

Cryptography and Security · Computer Science 2026-05-14 Haaris Mehmood , Giorgos Tatsis , Dimitrios Alexopoulos , Karthikeyan Saravanan , Jie Xu , Anastasios Drosou , Mete Ozay

Secure Aggregation protocols allow a collection of mutually distrust parties, each holding a private value, to collaboratively compute the sum of those values without revealing the values themselves. We consider training a deep neural…

Cryptography and Security · Computer Science 2016-11-16 Keith Bonawitz , Vladimir Ivanov , Ben Kreuter , Antonio Marcedone , H. Brendan McMahan , Sarvar Patel , Daniel Ramage , Aaron Segal , Karn Seth

Federated Learning (FL) is a promising distributed learning framework designed for privacy-aware applications. FL trains models on client devices without sharing the client's data and generates a global model on a server by aggregating…

Federated learning (FL) has recently gained significant momentum due to its potential to leverage large-scale distributed user data while preserving user privacy. However, the typical paradigm of FL faces challenges of both privacy and…

Cryptography and Security · Computer Science 2025-05-29 Sizai Hou , Songze Li , Tayyebeh Jahani-Nezhad , Giuseppe Caire

Federated learning is a computing paradigm that enhances privacy by enabling multiple parties to collaboratively train a machine learning model without revealing personal data. However, current research indicates that traditional federated…

Cryptography and Security · Computer Science 2025-01-10 Runhua Xu , Bo Li , Chao Li , James B. D. Joshi , Shuai Ma , Jianxin Li

In federated learning, multiple parties train models locally and share their parameters with a central server, which aggregates them to update a global model. To address the risk of exposing sensitive data through local models, secure…

Federated learning (FL) typically relies on synchronous training, which is slow due to stragglers. While asynchronous training handles stragglers efficiently, it does not ensure privacy due to the incompatibility with the secure aggregation…

Machine Learning · Computer Science 2022-02-03 Jinhyun So , Ramy E. Ali , Başak Güler , A. Salman Avestimehr

Federated learning has recently emerged as a paradigm promising the benefits of harnessing rich data from diverse sources to train high quality models, with the salient features that training datasets never leave local devices. Only model…

Cryptography and Security · Computer Science 2022-02-07 Yifeng Zheng , Shangqi Lai , Yi Liu , Xingliang Yuan , Xun Yi , Cong Wang
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