[Cryptography] "Zoom's end-to-end encryption isn't

[John Levine]

Zoom describes their encryption here.  tl;dr it's end to end for compatible clients,
it's end to "connector" for stuff that has to be transcoded.  All of their own clients
are compatible, transcoding is for H.323, phone calls, recordings, and such.

https://blog.zoom.us/wordpress/2020/04/01/facts-around-zoom-encryption-for-meetings-webinars/

No comment on the claim that everyone uses the same key.

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