  Zoom Meeting is an enterprise online video conferencing solution with
real-time messaging and content sharing. However, it's lack of privacy
protection since centralized Zoom servers are capable of monitoring user's
messages. Thereby, to solve the privacy problem, in May 2020, Zoom acquired
Keybase so that Keybase's team can help it to build end-to-end encryption
meeting while remaining Zoom's current scalability and high-performance.
Nonetheless, according to the latest released Zoom's whitepaper, even with the
new design of E2E (end to end) encryption meeting, the security threats can't
be erased completely since the new design is not fully decentralized.
  In this paper, we introduce a fully decentralized design of E2E encryption
meeting via blockchain technology. With this new design, Zoom's E2E meeting
privacy can be further improved.
