Welcome to the TUDCTF 2023! The goal of each challenge is to find a piece of text called a 'flag' which looks something like TUDCTF{...} but instead of '...' there will be a secret code. You can earn points by submitting these flags and depending on the difficulty of the challenge you will earn more or fewer points. Particularly, beginner challenges will earn you 16 points, easy 64, intermediate 256 and hard 1024. Only TU Delft students will be elligible for prizes but anyone can participate.
Prizes for TU Delft students
🥇 1st place: 100 euros
🥈 2nd place: 50 euros
🥉 3rd place: 25 euros
📖 best writeup: 25 euros
Rules
- Keep flags to yourself, since this is an individual competition team work is also not allowed.
- Do not hoard flags.
- Only attack the challenges the way they are presented to you. Do not attack our infrastructure.
- Unless specified there is no brute-forcing (except up to 15 ~mins locally) / fuzzing / scanning required to solve the challenges.
- You can ask questions to the organizers on discord if you suspect a challenge might be broken.
- Be nice to other participants and to the organizers.
TU Delft CTF Team
The TU Delft CTF Team is a team organized by staff from the cyber security and algorithmics research groups and ran by students from TU Delft. Last year we finished nr. 1 on the Netherlands' leaderboard of CTFTime. We plan to do the same this year but for that we need your help! We are always looking to involve more TU Delft students in our team so if you participated in our CTF and you liked it please let any of our members know if you are interested in joining our team.
With the team we organize the following events:
- Weekly: hacking sessions where we practice our skills and teach each other about new topics and challenge solves. We often have pizza!
- Monthly: we participate in a CTF on CTFTime's ranking to reach the number 1 spot on the leaderboard!
- Yearly: we organize our own CTF competition, the one you are looking at right now! TUD CTF 2023 is our third edition of this event.