Tancrède Lepoint Sarvar Patel Mariana Raykova 0001 Karn Seth Ni Trieu Private Join and Compute from PIR with Default. 605-634 2021 ASIACRYPT (2) https://doi.org/10.1007/978-3-030-92075-3_21 conf/asiacrypt/2021-2 db/conf/asiacrypt/asiacrypt2021-2.html#LepointPRST21