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InfoResearchPeer-reviewed
SilentNoise: Non-Interactive Noise Generation for Differential Privacy With Malicious Security
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Summary
SilentNoise is a framework for maliciously secure, non-interactive MPC protocols that sample additive DP noise without a trusted curator. After a one-time interactive setup, parties generate an unbounded number of noise shares non-interactively, and incorrect noise from malicious parties is rejected. The protocols reduce utility loss by an exponential factor in the number of computing parties and can reach a constant loss under a strong honest-majority setting.