A sagemath docker for crypto challenges in CTFs

• SageMath installation in a standalone container
• Mount your current working directory on the host in /workspace/ in the container

![NOTE] This container was created following the removal of sagemath in the official Ubuntu repositories, following an incompatibility (https://askubuntu.com/questions/1516582/how-to-install-sagemath-in-ubuntu-in-24-04)

When you are in need of sagemath in a folder, simply type sagemath-docker, and you will get into the container:

You need to install docker to use this tool. Once this is done, you can build the container and install the command by typing make install in this repository.

If you are using:

• Debian: https://docs.docker.com/engine/install/debian/

• Ubuntu, XUbuntu, LUbuntu: https://docs.docker.com/engine/install/ubuntu/

• Kali: It is based on debian so you just need to follow the Debian tutorial https://docs.docker.com/engine/install/debian/.

  The only different step in the tutorial for Kali is the last command of the first step Add the repository to Apt sources. Don't use:

  # Add the repository to Apt sources:
  echo \
    "deb [arch="$(dpkg --print-architecture)" signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
    "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
    sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

  But use instead:

  echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian buster stable" > /etc/apt/sources.list.d/docker.list

Pull requests are welcome. Feel free to open an issue if you want to add other features.