ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,537, issued on Oct. 6, was assigned to LENOVO (BEIJING) Ltd. (Beijing).
"Anonymous data retrieval method, client and server" was invented by Yilong Ma (Beijing) and Xiaobing Guo (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "An anonymous data retrieval method includes obtaining retrieval data and a first label provided by a server and matching the retrieval data, performing linear homomorphic encryption on the retrieval data and the first label to obtain retrieval data ciphertext, searching the server for a second label according to the retrieval data ciphertext, and performing anonymous retrieval on the server according to the second label ...