US Patent Issued to Visa International Service Association on July 22 for "Updatable private set intersection" (California, Illinois Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,367,198, issued on July 22, was assigned to Visa International Service Association (San Francisco).

"Updatable private set intersection" was invented by Saikrishna Badrinarayanan (Fremont, Calif.), Peihan Miao (Chicago) and Tiancheng Xie (Richmond, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: ""Updatable" private set intersection (PSI) protocols allow parties that each have an updatable private set to determine the intersection of their sets after an update without the need to compare each element of each set and without compromising privacy. In some protocols, a first party can determine an update to the intersection by determining an intersect...