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:
Aug. 23, 2022
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
A system can control access to encrypted data shared by a group of users by the use of a vault key that is associated with a group of users. The encrypted data can include encrypted secret data generated from the secret data using a secret key, an encrypted secret key can be generated from the secret key by the use of a vault key, and an encrypted vault key generated from the vault key by the use of a public key associated with a user of the group of users. The system can allow users to store and access the encrypted data only if the user is a current member of the group. The system can verify the user's membership status from a group manager, such as a system managing a channel or chat session.