Building hacking tools in JavaScript
summary
Rebuilds a classic wireless-hacking tool in client-side JavaScript using HackRF One and the WebUSB API, receives and records raw IQ samples from 433.92 MHz doorbells via RTL‑SDR/Flipper Zero, saves captures with the File System Web API, and replays them with transferOut to transmit — basic record-and-replay works locally. Reimplements much of Universal Radio Hacker’s pipeline in the browser, shows a controlled rolljam-style demo that succeeds at short range but notes power/range limits and need for amplifiers.
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chapters (10)
- 0:00Introduction and motivation
- 2:00Understanding SDR technology
- 4:29Setting up the environment
- 6:05Web USB API implementation
- 12:22Receiving and processing data
- 13:59File system recording
- 15:14Transmitting radio signals
- 16:56Live application demo
- 21:40Roll jam attack theory
- 25:49Experimental results and wrap-up
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