This is an introductory challenge for beginners which want to dive into the
world of Cryptography. The three stages of this challenge will increase in
difficulty. For an introduction to the first challenge visit the authors
`step by step guide`_.

For my new RSA key I used my own SecurePrimeService which definitely generates a
HUGE prime!

.. _step by step guide: https://static.allesctf.net/Intro_Crypto.html