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:
Jun. 30, 2026
Filed:
Sep. 19, 2023
Uber Technologies, Inc., San Francisco, CA (US);
Huicheng Song, San Francisco, CA (US);
Xinli Shang, San Francisco, CA (US);
Uber Technologies, Inc., San Francisco, CA (US);
Abstract
A key management system can store, in a tag repository, information associating policy tags with column datasets. The system can receive a client request for an encrypted encryption key (EEK) to access a column dataset, where the client request includes a column name for the column dataset. Based on the client request, the system can perform a lookup in the tag repository to identify one or more tags associated with the column dataset and determine whether the client device is authorized to access the column dataset. Based on determining that the client device is authorized to access the column dataset, the system can generate an original encryption key, and generate the EEK using a shared master key, the original encryption key, and at least the column name for the column dataset. The system may then provide the EEK to the client device over the one or more networks.