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.

Date of Patent:
Jul. 12, 2022

Filed:

Jun. 27, 2019
Applicant:

Advanced New Technologies Co., Ltd., Grand Cayman, KY;

Inventors:

Lichun Li, Hangzhou, CN;

Pengfei Ying, Hangzhou, CN;

Shan Yin, Hangzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/40 (2022.01); G06F 21/60 (2013.01); G06F 21/62 (2013.01); H04L 9/00 (2022.01); H04L 9/06 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0428 (2013.01); G06F 21/602 (2013.01); G06F 21/6245 (2013.01); H04L 9/008 (2013.01); H04L 9/0618 (2013.01); H04L 9/085 (2013.01);
Abstract

Privacy protection methods, systems, and apparatus, including computer programs encoded on computer storage media, are provided. One of the methods is performed by a first computing device and includes: obtaining a plurality of object IDs, wherein the plurality of object IDs include a target object ID; sending the plurality of object IDs to a second computing device storing a plurality of pieces of data respectively associated with the plurality of object IDs for the second computing device to generate a plurality of ciphertexts respectively based on the plurality of pieces of data; and executing a cryptography protocol with the second computing device to obtain a ciphertext corresponding to the target object ID from the plurality of ciphertexts generated by the second computing device, wherein the target object ID is unknown to the second computing device.


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