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. 16, 2021
Filed:
Dec. 03, 2019
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Alexander Weiss, Seattle, WA (US);
Eric Scott Albright, Sammamish, WA (US);
Dustyn J. Tubbs, Redmond, WA (US);
Paresh Lukka, Redmond, WA (US);
Andrew V. Spiziri, Seattle, WA (US);
Lawrence Fubini Waldman, Kirkland, WA (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
This disclosure provides enhanced management of encryption key updates based on user group activity. A system utilizes a vault key and a combination of other security keys to control access to secret data shared by members of a group who are participating in a collaborative session, such as a channel or chat session. The vault key allows a system to control access to secret data with users that join a particular group while immediately restricting access from users that leave the group. Updates to the keys are initiated based on the activity of the members of a group, which can include, but is not limited to, a threshold change in a number of group members, a total number of group members, an amount of data shared between the group members, and/or an age of one or more keys used to secure data shared by the group.