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Chun-I Fan

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Conference Open access 2026

A Maliciously Secure and Fully Decentralized Threshold FHE Scheme with Native RNS Acceleration

: Threshold fully homomorphic (ThFHE) encryption, as a communication encryption protocol, ensures that no third party participates in generating or knows any parameters. Compared to multi-key fully homomorphic encryption, it avoids excessive noise expansion caused by too many users participating in the calculation. How...

Ting-Yu Chen, Arijit Karati, Er-Shuo Zhuang et al. · 0 citations
Open access Jul 2026

A Comprehensive Defense Framework Against Poisoning Backdoor Attacks in Federated Learning

This work employs the novel dimensionality reduction technique UMAP and a stringent filtering mechanism to effectively identify and exclude potential malicious participants without relying on traditional noise addition methods and demonstrates that the proposed method maintains high main task accuracy while effectively...

Chun-I Fan, Hsin-Yen Wang, Tomohiro Morikawa · 0 citations

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