R-CONV: An Analytical Approach for Efficient Data Reconstruction via Convolutional Gradients

Fuente: arXiv
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Auteurs principaux: Eltaras, Tamer Ahmed, Malluhi, Qutaibah, Savino, Alessandro, Di Carlo, Stefano, Qayyum, Adnan, Qadir, Junaid
Format: Preprint
Publié: 2024
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author Eltaras, Tamer Ahmed
Malluhi, Qutaibah
Savino, Alessandro
Di Carlo, Stefano
Qayyum, Adnan
Qadir, Junaid
author_facet Eltaras, Tamer Ahmed
Malluhi, Qutaibah
Savino, Alessandro
Di Carlo, Stefano
Qayyum, Adnan
Qadir, Junaid
contents In the effort to learn from extensive collections of distributed data, federated learning has emerged as a promising approach for preserving privacy by using a gradient-sharing mechanism instead of exchanging raw data. However, recent studies show that private training data can be leaked through many gradient attacks. While previous analytical-based attacks have successfully reconstructed input data from fully connected layers, their effectiveness diminishes when applied to convolutional layers. This paper introduces an advanced data leakage method to efficiently exploit convolutional layers' gradients. We present a surprising finding: even with non-fully invertible activation functions, such as ReLU, we can analytically reconstruct training samples from the gradients. To the best of our knowledge, this is the first analytical approach that successfully reconstructs convolutional layer inputs directly from the gradients, bypassing the need to reconstruct layers' outputs. Prior research has mainly concentrated on the weight constraints of convolution layers, overlooking the significance of gradient constraints. Our findings demonstrate that existing analytical methods used to estimate the risk of gradient attacks lack accuracy. In some layers, attacks can be launched with less than 5% of the reported constraints.
format Preprint
id arxiv_https___arxiv_org_abs_2406_04227
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle R-CONV: An Analytical Approach for Efficient Data Reconstruction via Convolutional Gradients
Eltaras, Tamer Ahmed
Malluhi, Qutaibah
Savino, Alessandro
Di Carlo, Stefano
Qayyum, Adnan
Qadir, Junaid
Machine Learning
Cryptography and Security
Computer Vision and Pattern Recognition
In the effort to learn from extensive collections of distributed data, federated learning has emerged as a promising approach for preserving privacy by using a gradient-sharing mechanism instead of exchanging raw data. However, recent studies show that private training data can be leaked through many gradient attacks. While previous analytical-based attacks have successfully reconstructed input data from fully connected layers, their effectiveness diminishes when applied to convolutional layers. This paper introduces an advanced data leakage method to efficiently exploit convolutional layers' gradients. We present a surprising finding: even with non-fully invertible activation functions, such as ReLU, we can analytically reconstruct training samples from the gradients. To the best of our knowledge, this is the first analytical approach that successfully reconstructs convolutional layer inputs directly from the gradients, bypassing the need to reconstruct layers' outputs. Prior research has mainly concentrated on the weight constraints of convolution layers, overlooking the significance of gradient constraints. Our findings demonstrate that existing analytical methods used to estimate the risk of gradient attacks lack accuracy. In some layers, attacks can be launched with less than 5% of the reported constraints.
title R-CONV: An Analytical Approach for Efficient Data Reconstruction via Convolutional Gradients
topic Machine Learning
Cryptography and Security
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2406.04227