PSI from Ring-OLE
Wutichai Chongchitmate, Yuval Ishai, Steve Lu, Rafail Ostrovsky · Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security · 2022
Private set intersection (PSI) is one of the most extensively studied instances of secure computation. PSI allows two parties to compute the intersection of their input sets without revealing anything else. Other useful variants include PSI-Payload, where the output includes payloads associated with members of the intersection, and PSI-Sum, where the output includes the sum of the payloads instead of individual ones.