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:
Feb. 09, 2021
Filed:
Oct. 31, 2019
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Mitica Manu, Sammamish, WA (US);
Baskar Sridharan, Sammamish, WA (US);
Raghunath Ramakrishnan, Bellevue, WA (US);
Sriram K. Rajamani, Bangalore, IN;
Victor V. Boyko, Brooklyn, NY (US);
Pushkar Vijay Chitnis, Bellevue, WA (US);
Shastry M. C. Shankara, Bangalore, IN;
Ramarathnam Venkatesan, Redmond, WA (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
Operating upon encrypted data with a particular data scope. A base encryption key is established and associated with the particular data scope, and then stored in a base encryption key store. That base encryption key store might be managed by an application or service that stores base encryption keys for multiple data scopes. A proxy encryption key acts as a kind of proxy for the base encryption key. The proxy encryption key may be used for frequent operations on encrypted data within the particular data scope. Thus, the principles described herein act as a frequency amplifier that allows key-based operations upon the particular data scope to be performed at much higher frequencies than otherwise would be possible by operating directly using the base encryption key.