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InfoResearchPeer-reviewed
FreeFL: Privacy-Preserving Cross-Silo Federated Learning Without Third Party
- Published
- Record updated
Summary
FreeFL is a cross-silo federated learning protocol that removes the need for a trusted third party and a centralized aggregator. It replaces homomorphic encryption with a lightweight decentralized symmetric encryption scheme with additive homomorphism, built from a decentralized multiparty symmetric encryption (DMSE) scheme and two multiparty computation protocols. The authors report high computation and communication efficiency and significant computational gains over existing HE-based cross-silo FL protocols.