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. 12, 2022
Filed:
May. 01, 2020
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Benjamin Sean Levin, Seattle, WA (US);
Kartik Tirunelveli Kanakasabesan, Sammamish, WA (US);
Laurie Lee Litwack, North Bend, WA (US);
Kurt Matthew Brendon, Redmond, WA (US);
Ajay Kumar Karanam, Redmond, WA (US);
Kiran Doreswamy, Sammamish, WA (US);
Ryan Jay Best, Bothell, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Double key encryption encrypts sensitive data using a content key, obtains a user public key from a key management service, encrypts the content key using the user public key, and encrypts the result using a cloud service provider key. Data confidentiality is protected efficiently through multilevel encryption and also by utilizing keys that are managed by different entities. Sensitivity labeling allows analytics to track sensitive data without compromising confidentiality. Compliance mechanisms may use attribute-based access control to support storage of sensitive data in a cloud, but only inside a permitted region, and without giving the cloud service provider access to the sensitive data.