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Running a Software Defined Radio CTF using challengectl

Dan Perret

Explains how the RF Village Capture the Flag team designs wireless challenges and automates over-the-air signal transmission using challengectl.

Summary

The Evolution of RF Capture the Flag Competitions

Software-Defined Radio (SDR) has become a central discipline in cybersecurity competitions, challenging participants to capture, demodulate, and reverse-engineer novel RF signals in real time.

Designing Engaging and Educational RF Challenges

Dan Perret outlines the design philosophy behind RF Village CTF challenges, spanning basic analog modulation, digital telemetry decoding, satellite downlink decoding, and hidden signal steganography.

Automated Signal Transmission with challengectl

RF Hackers Sanctuary engineers developed challengectl, an open-source orchestration tool that schedules, modulates, and transmits multiple concurrent challenge signals across SDR transmitters.

Empowering Communities to Host Wireless Competitions

Releasing open-source CTF transmission software enables schools, hacker conferences, and radio clubs to easily organize their own hands-on wireless security competitions.

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