Add-on dossier
Ed25519-signed ESP-NOW CTF interaction
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
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event CTF and badge networking
The builder describes ESP-NOW question distribution, Ed25519 verification before display, and individual badge-signed replies to the game server. This preserves the source-described event architecture without publishing packet construction, key-recovery steps, backend endpoints, final protocol source, cryptographic review, or a general security guarantee.
- Badge
- RootedCON 2026 Pacman Badge
- Type
- event CTF and badge networking
- Status
- direct project-builder account
- Compatibility
- RootedCON 2026 PACMAN/Ghost attendee CTF badge
- Source
- https://es.linkedin.com/pulse/c%C3%B3mo-construimos-un-ctf-con-badges-esp32-firmados-en-melendez-cano--ghwze
community firmware repository
Community replacement firmware for the RootedCON 2026 ESP32 badge, documenting WiFi scanner, evil-twin detection, deauth, and crypto utilities on the same hardware.
Badge: RootedCON 2026 Pacman Badge
community repurpose repository
Community repository repurposing the RootedCON 2026 CTF badge as a wireless controller for a fighting robot over ESP32, TFT, and d-pad.
Badge: RootedCON 2026 Pacman Badge
community reversing repository
Community repository reversing the RootedCON 2026 Pacman Badge firmware, including arcade mode, Marauder integration, and the native quiz-server CTF protocol, published under GPL-3.0.
Badge: RootedCON 2026 Pacman Badge
first-hand project-builder write-up
David Melendez Cano's public TechFrontiers write-up describes building the PACMAN Ghost attendee boards, their color variants, ESP32-WROOM-32, LiPo/UVLO/USB-debug surface, ESP-NOW CTF architecture, and signed question/answer model. It is direct builder evidence, not an official RootedCON source release or a reusable-image grant.
Badge: RootedCON 2026 Pacman Badge
official event page
Official RootedCON source for the March 5-7, 2026 sixteenth edition at Kinepolis, Madrid.
Badge: RootedCON 2026 Pacman Badge
David Melendez Cano / TechFrontiers · retrieved 2026-05-15
A direct April 6, 2026 project-builder account of the RootedCON PACMAN Ghost boards, attendee color choices, ESP32-WROOM-32, power/debug architecture, ESP-NOW game interaction, per-badge identity/key material, and signed CTF-question/answer design. It does not provide an official RootedCON archive, complete production data, image-reuse permission, or a safe operating guide.
Badge: RootedCON 2026 Pacman Badge
GitHub / DonJulve · retrieved 2026-05-15
Primary community source for the ESP32-D0WD-V3, ST7735 1.77-inch 128x160 display, D-pad, and native quiz-server CTF protocol reconstruction, published under GPL-3.0.
Badge: RootedCON 2026 Pacman Badge
GitHub / aherreros-dev · retrieved 2026-05-15
Community source corroborating the ESP32 DevKit hardware and documenting the WiFi auditing custom firmware replacement surface.
Badge: RootedCON 2026 Pacman Badge
GitHub / double-thinker · retrieved 2026-05-15
Community source corroborating the ESP32, TFT, and d-pad hardware by repurposing the badge as a wireless robot controller.
Badge: RootedCON 2026 Pacman Badge
RootedCON · retrieved 2026-05-15
Primary official source for the March 5-7, 2026 sixteenth edition, Kinepolis Madrid venue, and Spanish cybersecurity-conference context.
Badge: RootedCON 2026 Pacman Badge