The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Jan. 06, 2025
Applicant:
Lenovo (Beijing) Limited, Beijing, CN;
Inventors:
Yilong MA, Beijing, CN;
Xiaobing Guo, Beijing, CN;
Assignee:
LENOVO (BEIJING) LIMITED, Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2022.01); G06F 16/90 (2019.01); G06F 16/906 (2019.01); G06F 21/60 (2013.01); G06F 21/62 (2013.01); H04L 9/06 (2006.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 9/008 (2013.01); G06F 21/602 (2013.01); G06F 21/6227 (2013.01); G06F 21/6254 (2013.01); H04L 9/0618 (2013.01); H04L 9/0869 (2013.01); H04L 63/0428 (2013.01); G06F 16/90 (2019.01); G06F 16/906 (2019.01);
Abstract
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 and encrypted first label to obtain candidate data that matches the retrieval data.