A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks

Lingyu Wang

doi:10.47297/taposatWSP2633-456910.20250606

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A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks

6卷第6期

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A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks
A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks
School of Arts and Sciences, China University of Petroleum-Beijing at Karamay, Karamay, Xinjiang, 834000, China
2025年6卷第6期页码：49-54
纸质出版日期：2025-06-30
DOI：10.47297/taposatWSP2633-456910.20250606
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(2025). A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks. 科技理论与实践（英文版）, 6(6), 49-54.

Wang Lingyu.A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks[J].Theory and Practice of Science and Technology,2025,06(06):49-54.
(2025). A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks. 科技理论与实践（英文版）, 6(6), 49-54. DOI： 10.47297/taposatWSP2633-456910.20250606.

Wang Lingyu.A Survey of Privacy-Preserving Techniques in Federated Graph Neural Networks[J].Theory and Practice of Science and Technology,2025,06(06):49-54. DOI： 10.47297/taposatWSP2633-456910.20250606.

摘要

Abstract

Federated Graph Neural Networks (FedGNNs) are increasingly adopted in high-sensitivity domains—such as finance

healthcare

and government—imposing stringent requirements on privacy

performance

and communication efficiency. This survey systematically reviews four core privacy-preserving techniques (homomorphic encryption

differential privacy

secure multi-party computation

and trusted execution environments) and introduces an evaluation framework that balances privacy

performance

and efficiency. Within this framework

we compare encryption-based aggregation

embedding perturbation

graph-structure anonymization

uncertainty-aware distillation

and decentralized optimization. To handle dynamic graphs and multimodal data

we propose a sliding-window temporal encoding and cross-modal alignment strategy

and design a spatiotemporal multimodal defense pipeline with adaptive aggregation and privacy-budget scheduling for robust

efficient protection. Finally

we identify future challenges—standardized evaluation

adversarial-defense benchmarks

and industrial deployment—and outline design principles to guide secure FedGNN implementations in sensitive environments.

关键词

Keywords

references

Zhang, Z., & Li, H. (2024). A comprehensive survey on trustworthy graph neural networks.

Li, W., & Wang, M. (2024). A survey on federated graph neural networks: Methods and applications.

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