ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,906, issued on July 15, was assigned to CRYPTO LAB INC. (Seoul, South Korea).

"Apparatus for privacy preserving text search using homomorphic encryption and method thereof" was invented by Garam Lee (Seoul, South Korea) and Junbum Shin (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A text search method is disclosed. The text search method includes, based on a query including a text being input, computing a vector value having a preset size by using a preset encoding algorithm, the vector value corresponding to the text, generating a query ciphertext by homomorphic encryption for the computed vector value, transmitting the gene...