Reply To: The official Challenge 10 tips and hints thread
@Birdie
Did you read this page ?
At the bottom you can find:
https://www.cipherchallenge.org/wp-content/uploads/2022/09/Programming-for-Cryptologists-v2.2-1c.pdf
and more difficult for a beginner:
https://www.cipherchallenge.org/wp-content/uploads/2022/09/A-Book-on-Classical-Cryptography-by-Madness.pdf