Security Fest
The Swedish Security Fest edition with a UV-printed Gothenburg Skyline CTF badge, soldering-village LED personalization, and serial cryptography challenges.
Gothenburg · Sweden · 2023
A full-colour UV-printed Security Fest badge inspired by Gothenburg's skyline with a cyberpunk treatment, backside-mounted components, Micro-USB CTF interface, cryptography puzzles, and soldering-village LED personalization.
Lifecycle
The badge CTF uses a serial monitor at 9600 baud; sending three stars enters CTF mode and solving eight cryptography puzzles unlocks eight building lights.
Security Fest hosted a soldering village so attendees could solder their own LEDs in chosen colours and personalize the badge.
Operational history
This is a useful lifecycle record: the badge was partly a shipped object and partly an on-site hardware workshop artifact.
The Sweden record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.