Multi-Party Homomorphic Secret Sharing and Sublinear MPC from Sparse LPN

ePrint Report: Multi-Party Homomorphic Secret Sharing and Sublinear MPC from Sparse LPN

Quang Dao, Yuval Ishai, Aayush Jain, Huijia Lin

Over the past few years, homomorphic secret sharing (HSS) emerged as a compelling alternative to fully homomorphic encryption (FHE), due to its feasibility from an array of standard assumptions and its potential efficiency benefits. However, all known HSS schemes, with the exception of schemes built from FHE or indistinguishability obfuscation (iO), can only support two or four parties.


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