ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,121, issued on May 5, was assigned to CRYPTO LAB INC. (Seoul, South Korea).
"Data management method and apparatus using homomorphic encryption lookup table" was invented by Junbum Shin (Suwon-si, South Korea), Jung Woo Kim (Seoul, South Korea), Sumin Lee (Seoul, South Korea) and Seewoo Lee (Chungju-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a data management method and apparatus. The data management method includes: obtaining a hash value of a key by using a predetermined hash function for each of a plurality of data in which the key matches a data value, sorting the plurality of data in which the key is changed to the...