Efficient Unbalanced Quorum PSI from Homomorphic Encryption

ePrint Report: Efficient Unbalanced Quorum PSI from Homomorphic Encryption

Xinpeng Yang, Liang Cai, Yinghao Wang, Yinghao Wang, Lu Sun, Jingwei Hu

Multiparty private set intersection (mPSI) protocol is capable of finding the intersection of multiple sets securely without revealing any other information. However, its limitation lies in processing only those elements present in every participant's set, which proves inadequate in scenarios where certain elements are common to several, but not all, sets.
In this paper, we introduce an innovative variant …

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