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:
Apr. 20, 2021
Filed:
Nov. 19, 2018
Beijing Jingdong Shangke Information Technology Co., Ltd., Beijing, CN;
Jd.com American Technologies Corporation, Mountain View, CA (US);
Qiuxiang Dong, Mountain View, CA (US);
Yueh-Hsun Lin, Mountain View, CA (US);
Wei Gao, Mountain View, CA (US);
Jimmy Su, Mountain View, CA (US);
Beijing Jingdong Shangke Information Technology Co., Ltd., Beijing, CN;
JD.com American Technologies Corporation, Mountain View, CA (US);
Abstract
A method and system for searching encrypted data using wildcard keywords. The method includes: obtaining, by a first computing device, a keyword for data to be encrypted, where the keyword has a fixed length; generating a sequence of primes; determining corresponding one prime from the sequence of primes for each character of the keyword; and defining a product of the corresponding primes of the characters of the keyword as index of the encrypted data, where the index can be searched using a wildcard search keyword.