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:
May. 26, 2026
Filed:
Apr. 05, 2024
Cisco Technology, Inc., San Jose, CA (US);
Richard Lee Barnes, Arlington, VA (US);
Suhas Nandakumar, Milpitas, CA (US);
Gregory Lee Hewett, Plano, TX (US);
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Abstract
A user device joins a communication session between the user device and a plurality of devices. The user device and the plurality of devices use a Message Layer Security (MLS) protocol for end-to-end security. The user device identifies a first device of the plurality of devices and obtains a portion of authentication tree information associated with the communication session. The portion being associated with the first device. The user device authenticates the first device based on obtaining the portion of the authentication tree information.