Mysterium the first tool which permits you to retrieve the most part of a Python code even the .py or .pyc was extracted from an executable file, even it is encrypted with every existing encryptage. Mysterium don't make any difference between encrypted and non encrypted files, it can retrieve code from Pyarmor or .pyc files.

This project is a Python program that uses the Caesar cipher to encrypt and decrypt messages. It takes a message and a numerical key as input and outputs the resulting cipher text. It can also decrypt the cipher text and find the encryption key used. It's a simple way to learn about encryption and decryption algorithms.