Transport me too

hardware communication bus FCSC 2026 solved on

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Description

You just got a transport card based on a chip ST25TB512AC from STMicroElectronics. Apparently, this card initially contained 10 tickets, but cannot be reloaded. The person who gave you this card already used 5 tickets.

Can you travel 1000 times ?

Note: When sending a raw command to the card, consider that it is alreadt selected by the reader.

Files

Author

ElyKar

Challenge Instructions

  1. First, download docker-compose.yml:
    curl https://hackropole.fr/challenges/fcsc2026-hardware-transport-me-too/docker-compose.public.yml -o docker-compose.yml
  2. Launch the challenge by executing in the same folder:
    docker compose up
  3. Then, in another console, access the challenge with Netcat:
    nc localhost 4000
⚠️ Important: You must solve the challenge by interacting with the Docker container through the exposed network port. Any other way is not considered valid.

In case you encounter problems, please consult the FAQ.

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