7.6.3 Leader Join

When the leader joins the meeting meetingID, they:

  1. Fetches meetingUUID from the Zoom infrastructure.

  2. Generates a symmetric 32-byte seed MK using a secure random number generator.

  3. Gets the full list of participants I from the MMR.

  4. For each participant i ∈ I, it runs the “Participant Join (Leader)” subroutine for i.

Each MK has an associated sequence number mkSeqNum, starting at 1 and incrementing whenever the key changes as described in Section 7.6.6

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