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:
Nov. 11, 2025
Filed:
Sep. 30, 2022
Dropbox, Inc., San Francisco, CA (US);
Jonathan Lee, Seattle, WA (US);
Rajat Goel, San Jose, CA (US);
Stas Ilinskiy, Seattle, WA (US);
Wesley Rodriguez, San Francisco, CA (US);
April King, Saint Paul, MN (US);
Joseph Eichenhofer, San Francisco, CA (US);
Dropbox, Inc., San Francisco, CA (US);
Abstract
A system, method, and computer readable medium is disclosed for accessing an object that is encrypted within at least a tertiary-level encryption key scheme. This includes receiving a request to access blocks making up an object by content management system and using a top-level encryption key from a key management service, a namespace encryption key from a namespace encryption key database, and a respective block encryption keys protecting the blocks making up the object. Using these keys, the system can decrypt the block encryption keys using the namespace encryption key and decrypt the blocks using the block encryption keys, thereby providing access to the object.