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Perfectly Secure Synchronous MPC with Asynchronous Fallback Guarantees Against General Adversaries
Aug. 17, 2022, 1:06 a.m. |
IACR News www.iacr.org
ePrint Report: Perfectly Secure Synchronous MPC with Asynchronous Fallback Guarantees Against General Adversaries
Ananya Appan, Anirudh Chandramouli, Ashish Choudhury
In this work, we study perfectly-secure multi-party computation (MPC) against general (non-threshold) adversaries. Known protocols in a synchronous network are secure against $Q^{(3)}$ adversary structures, while in an asynchronous network, known protocols are secure against $Q^{(4)}$ adversary structures. A natural question is whether there exists a single protocol which remains secure against $Q^{(3)}$ and $Q^{(4)}$ adversary structures in a synchronous and …
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