Capture the Signal: Running Interactive RF CTFs, Remotely
summary
CTS is a challenge platform for blind signal analysis that originated in 2018 and now streams real RF over IP using an automated framework that handles tunneling, spectrum slicing and port mapping. Developers supply a GRC flowgraph plus a cfg file and requirements, build via Makefile and deploy as containers; contestants receive an IQ FIFO stream (consumable by GQRX, GNU Radio, URH) over MQTT and solve chained challenges. The system runs in Docker and supports Docker/AWS deployment for remote events and worked end to end at recent conferences.
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chapters (8)
- 0:00Start
- 0:39THE IDEA BEHIND THE CTS CONTEST
- 1:05WE WANT THE CTS AT CONFERENCES
- 1:58PRACTICAL CHALLENGES
- 2:50THE FRAMEWORK PROVIDES...
- 5:17THE CONTESTANTS FOCUS ON THE CHALLENGE
- 5:40TUNING TO A FIFO
- 6:06WHAT YOU WILL EXPERIENCE AT GRCon2021
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