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Why we need broadcast channel in the 3PC setting?

jo flag

I am a MPC learner for privacy-preserving machine learning. Recently, I am reading this paper: FLASH: Fast and Robust Framework for Privacy-preserving Machine Learning. I am confused about the question that why we need broadcast channel in the 3PC setting. I guess that is because consensus, but I am not sure. Can you help me? Thanks.

us flag
Is the paper you are reading in the malicious model without aborts? if so, I think your guess is correct.
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jo flag
@AntonioFa Thank you. I see.
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