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EVERYTHING BELOW IS A SAMPLE README WITH INSTRUCTIONS ON THE PLAYER SETUP, EDIT FOR YOUR CTF

NIZKCTF example CTF

Registration

  1. All team members must have a GitHub account and configure a SSH key in their account settings.

    Note: If you prefer team members to stay anonymous, you can create a single GitHub account for the entire team and share its credentials.

  2. All team members must have the git client correctly set up. If you have never used git before, run:

    git config --global user.name "John Doe"
git config --global user.email [email protected]

  3. All team members must clone the repository and install the dependencies:

    git clone [email protected]:pwn2winctf/NIKCTF.git
cd NIKCTF
sudo apt-get install libsodium18
curl https://bootstrap.pypa.io/get-pip.py | sudo -H python
sudo -H python -m pip install -r pip-requirements.txt

    Note: If you are using Ubuntu 14.04, add ppa:elt/libsodium to your system to be able to install libsodium18.

  4. If dependencies are installed correctly, you should now see the help menu when calling:

    ./ctf -h

  5. The leader of the team must execute the following command and follow the instructions to register the team:

    ./ctf init

  6. The other members of the team must login to GitHub without registering a new team, by running:

    ./ctf login

  7. After that, the leader must share the team-secrets.json with the members of the team. The other members of the team must place the team-secrets.json file shared by the leader in their NIZKCTF directory.

Challenges

Challenges are available on https://pwn2winctf.github.io.

If you prefer to browse them locally, you may also run a local webserver by typing ./ctf serve, or list challenges through the command line interface:

./ctf challs

Flag submission

To submit a flag:

./ctf submit --chall chall-id 'CTF-BR{flag123}'

You may omit --chall chall-id from the command, however it will be slower to run this way. In this case, we will look for the flag in every challenge released until now.

Scoreboard

Currently, the scoreboard is only available through the command line interface:

./ctf score --names --pull

However we plan to make it available through the web interface in a future release.