{"guid":"a4646b1e-7e09-55e9-8e7d-b30a4379ced9","title":"MatrixRTC - The key sharing problem","subtitle":null,"slug":"matrix-conf-2025-81420-matrixrtc-the-key-sharing-problem","link":"https://cfp.2025.matrix.org/matrix-conf-2025/talk/QCYBMC/","description":"Why is having large encrypted group calls difficult? How do other providers solve this? The future? Demos!\n\nWhy are large encrypted group calls difficult to host? Specifically, we will go into the details about key sharing, how we can use some tricks to optimize it and how they are also a very big footgun.\n\nWe will also see how other providers like jitsi, zoom, discord and cloudflare handle this. And then show off the new Famedly Call project!\n\nThere will also be some mentions of MLS and how it fixes this problem and some caveats, therefore attending one of the MLS talks from before is recommended :D\n\nLicensed to the public under https://creativecommons.org/licenses/by-sa/4.0/","original_language":"eng","persons":["Jayesh Nirve (td)"],"tags":["81420","2025","matrix-conf-2025","Hands-on","Lynn Conway","matrix-conf-2025-eng","matrix-conf-2025","Day 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