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Important to note that only 1:1 calls are E2E encrypted and larger calls are forwarded to a SFU that 8x8 calls "Jitsi Videobridge" where they are decrypted, pro
by fancy_pantser 5y ago
Important to note that only 1:1 calls are E2E encrypted and larger calls are forwarded to a SFU that 8x8 calls "Jitsi Videobridge" where they are decrypted, processed in memory, and then re-encrypted for each participant stream.
- secretj 5y agoHi I'd like to correct this, if you have enabled "Video Bridge Encryption" in Brave Talk, this is not the case. Calls of up to 20 participants would be encrypted, using keys locally exchanged among participants. The SFU wouldn't be able to decrypt these video/audio streams. Of course, as would be standard and expected, the SFU would decrypt the transport layer of encryption, but wouldn't be able to decrypt the second layer of video/audio encryption. You can find more about the current underlying Jitsi encryption implementation here: https://jitsi.org/wp-content/uploads/2021/08/jitsi-e2ee-1.0.pdf https://jitsi.org/wp-content/uploads/2021/08/jitsi-e2ee-1.0....
- fancy_pantser 5y agoDoes that require all participants to have enabled "Video Bridge Encryption" in Brave Talk? Does it notify participants when they go over 20 and does then everyone stop encrypting at the same time?
- secretj 5y agoOnce the moderator enables "Video Bridge Encryption" it is automatically enabled for other participants. I believe that if a 21st user tried to join it would error out, but let me confirm this with the 8x8 team.
- secretj 5y agoUpdate, I checked with the 8x8 team, and it will warn from 21 to 25 users, and then disable when the 25th user joins. You'll see the green video bridge encryption notification turn off at the top at that point.