Badd Circuit

intro hardware circuit FCSC 2025 solved on

Description

Here is a logic circuit that implements an unknown function. What is the value of the 4 output bits?

The flag format is FCSC{<value>}. For example, if the value to find is 0001, the flag would be FCSC{0001}.

Note: During FCSC 2025, this challenge was limited to 3 submissions.

Files

  • baddcircuit.pdf
    30.40 KiB – fbed679779735a49e47598f259e12d8ec1b46143ba2888deaf50a92666184b34
  • baddcircuit.png
    114.27 KiB – 622f1424a8182859dac3beb44abe505d2914a929817e5f592d663e5a86411832

Author

ElyKar

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