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Advancing Blockchain-based Federated Learning through Verifiable Off-chain Computations. (arXiv:2206.11641v1 [cs.CR])
June 24, 2022, 1:20 a.m. | Jonathan Heiss, Elias Grünewald, Nikolas Haimerl, Stefan Schulte, Stefan Tai
cs.CR updates on arXiv.org arxiv.org
Federated learning may be subject to both global aggregation attacks and
distributed poisoning attacks. Blockchain technology along with incentive and
penalty mechanisms have been suggested to counter these. In this paper, we
explore verifiable off-chain computations using zero-knowledge proofs as an
alternative to incentive and penalty mechanisms in blockchain-based federated
learning. In our solution, learning nodes, in addition to their computational
duties, act as off-chain provers submitting proofs to attest computational
correctness of parameters that can be verified on the …
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