FedGMark: Certifiably Robust Watermarking for Federated Graph Learning

Fuente: arXiv
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Main Authors: Yang, Yuxin, Li, Qiang, Hong, Yuan, Wang, Binghui
Format: Preprint
Published: 2024
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author Yang, Yuxin
Li, Qiang
Hong, Yuan
Wang, Binghui
author_facet Yang, Yuxin
Li, Qiang
Hong, Yuan
Wang, Binghui
contents Federated graph learning (FedGL) is an emerging learning paradigm to collaboratively train graph data from various clients. However, during the development and deployment of FedGL models, they are susceptible to illegal copying and model theft. Backdoor-based watermarking is a well-known method for mitigating these attacks, as it offers ownership verification to the model owner. We take the first step to protect the ownership of FedGL models via backdoor-based watermarking. Existing techniques have challenges in achieving the goal: 1) they either cannot be directly applied or yield unsatisfactory performance; 2) they are vulnerable to watermark removal attacks; and 3) they lack of formal guarantees. To address all the challenges, we propose FedGMark, the first certified robust backdoor-based watermarking for FedGL. FedGMark leverages the unique graph structure and client information in FedGL to learn customized and diverse watermarks. It also designs a novel GL architecture that facilitates defending against both the empirical and theoretically worst-case watermark removal attacks. Extensive experiments validate the promising empirical and provable watermarking performance of FedGMark. Source code is available at: https://github.com/Yuxin104/FedGMark.
format Preprint
id arxiv_https___arxiv_org_abs_2410_17533
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle FedGMark: Certifiably Robust Watermarking for Federated Graph Learning
Yang, Yuxin
Li, Qiang
Hong, Yuan
Wang, Binghui
Cryptography and Security
Federated graph learning (FedGL) is an emerging learning paradigm to collaboratively train graph data from various clients. However, during the development and deployment of FedGL models, they are susceptible to illegal copying and model theft. Backdoor-based watermarking is a well-known method for mitigating these attacks, as it offers ownership verification to the model owner. We take the first step to protect the ownership of FedGL models via backdoor-based watermarking. Existing techniques have challenges in achieving the goal: 1) they either cannot be directly applied or yield unsatisfactory performance; 2) they are vulnerable to watermark removal attacks; and 3) they lack of formal guarantees. To address all the challenges, we propose FedGMark, the first certified robust backdoor-based watermarking for FedGL. FedGMark leverages the unique graph structure and client information in FedGL to learn customized and diverse watermarks. It also designs a novel GL architecture that facilitates defending against both the empirical and theoretically worst-case watermark removal attacks. Extensive experiments validate the promising empirical and provable watermarking performance of FedGMark. Source code is available at: https://github.com/Yuxin104/FedGMark.
title FedGMark: Certifiably Robust Watermarking for Federated Graph Learning
topic Cryptography and Security
url https://arxiv.org/abs/2410.17533