[Resource Topic] 2023/1173: Round-Optimal Black-Box MPC in the Plain Model

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Round-Optimal Black-Box MPC in the Plain Model

Authors: Yuval Ishai, Dakshita Khurana, Amit Sahai, Akshayaram Srinivasan


We give the first construction of a fully black-box round-optimal secure multiparty computation (MPC) protocol in the plain model. Our protocol makes black-box use of a sub-exponentially secure two-message statistical sender private oblivious transfer (SSP-OT), which in turn can be based on (sub-exponential variants of) almost all of the standard cryptographic assumptions known to imply public-key cryptography.

ePrint: https://eprint.iacr.org/2023/1173

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