Patent ID: 11882215
Assignee: ZOOM VIDEO COMMUNICATIONS, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A method comprising:
joining, by a client device associated with a non-leader participant of a video meeting, the video meeting by connecting to a meeting system configured to handle the video meeting;
generating a short-term encryption keypair comprising a short-term public key and a short-term private key;
obtaining a long-term public key of a leader participant of the video meeting from the meeting system;
obtaining a participant cryptographic signature of the leader participant and a short-term public key of the leader participant from the meeting system;
verifying the participant cryptographic signature of the leader participant based on a long-term public key of the leader participant, the short-term public key of the leader participant obtained from the meeting system, the participant cryptographic signature of the leader participant, participant information of the leader participant and meeting information of the video meeting;
obtaining an encrypted meeting key for the non-leader participant from the meeting system;
decrypting the meeting key using the short-term private key of the non-leader participant, the short-term public key of the leader participant, the meeting information, a participant identifier of the leader participant, and a participant identifier of the non-leader participant;
encrypting meeting data based on the meeting key; and
transmitting the meeting data to the meeting system.