On-stage: Building a WebRTC app

on YouTube ↗30m

" summary

Builds a real app: a browser and tiny device use a WebRTC data channel with no passwords, pairing by QR Code pairing and a small WebSocket rendezvous hub (Fingersmith). Uses Ice4j for ICE, Bouncy Castle DTLS and a custom Java SCTP stack; extracts a DTLS certificate fingerprint as the device identity. Demonstrates a working video/data call to a BeagleBone and RC control of a LEGO EV3 on 300 MHz hardware; the pairing and peer‑to‑peer data channel actually work.

AI-written summary · about

" chapters (10)

1. 0:00IoT security concerns
2. 2:46WebRTC as a solution
3. 4:28Pairing and authentication
4. 6:42Demo: Smartphone pairing
5. 9:13Signaling server design
6. 11:05Fingerprinting for identity
7. 13:22Code walkthrough
8. 16:51Demo: BeagleBone device
9. 21:29Demo: Lego EV3 robot
10. 29:15Conclusion and takeaways

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