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This CTF will be done in teams of two persons.
Find your CTF buddy and create an account with the following rules:

- use your full names for Team Name, formatted as "SURNAME1 Firstname1 SURNAME2 Firstname2"

- use "Crypto CTF 2025" as Team Type

There are 3 deadlines for the CTF:

January 12, 2026 (bonus deadline), 23:59 for 110% of the base score (i.e. if maximum were 900, then 900 x 110% = 990 points if you finish all tasks).

January 18, 2026 (soft deadline), 23:59 for 100% of the base score (i.e. if maximum were 900, then 900 ).

Each additional day gets a penality of 5% until:
January 21, 2026 (hard deadline), 23:59 for 80% of the base score (i.e. if maximum were 900, then 900 x 80% = 720 points if you finish all tasks).

In order for the score to be taken into consideration, you also need to upload a zip archive on the Moodle platform (curs.upb) containing README, scripts and all other support files you you have used to solve each challenge.
If you used LLM bots to help you solve the tasks, you need to put the prompts you used as well. Be aware that you are only allowed to use free versions of the available LLMs for this CTF challenge. You will need to keep the conversations recorded if proof for using them will be required later.