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Playlist for "32C3: gated communities"

Henryk Plötz

QR codes have rapidly overtaken rival 2D bar code symbologies and are becoming quite ubiquitous. Most uses are rather pedestrian though, and even the more non-standard modifications to pure QR codes lack a certain technical finesse, opting to just overpaint part of the code and let error correction handle that instead. Let's see how we can do better.