@misc{TBKOR20, author = { Nikolaos Triandopoulos and Kevin D. Bowers and James A. Kelley and Alina Oprea and Ronald Rivest }, title = { Methods and Apparatus for Private Set Membership Using Aggregation for Reducing Communications }, howpublished = { U.S. Patent 10,635,824 B1. Issued April 28, 2020. }, date = { 2020-04-28 }, OPTmonth = { April 28, }, OPTyear = { 2020 }, urla = { text(google) }, abstract = { Methods and apparatus are provided for private set membership using aggregation for reduced communications. A determination is made as to whether at least one data element of a client is in a data set of a server by: obtaining a transformation of the at least one data element; receiving a response from the server based on the transformation of the at least one data element, wherein the transformation comprises one or more of a Bloom filter-based transformation that employs a Bloom filter comprising a plurality of hash functions and an encryption-based transformation; and determining whether the at least one data element is in the data set based on the response, wherein one or more of the response and the determining is based on a result of at least one aggregation of a plurality of values that depend on the at least one data element and one or more items in the data set. } }