Enigma

This is my attempt at creating the Enigma Machine used by the Germans in WW2 to encrypt messages.

Rotor configurations can be found here.

A nice simulator can be found here.

Goals

• To become more familiar with the C++ Programming Language
• Stick to a TDD lifecycle
• Learn how to use CMake
• Create an Enigma Machine

The following are nice to haves but are not the main goals of this project

• See how this can be turned into a unix command line tool to encrypt files (like openssl)
• Try to break the Enigma Code

Features

• [x] Interact through a command line interface
• [x] Can input either files or type message
• [x] Output to a file or terminal
• [ ] ~~Machine should be configurable using JSON (or some other structured file format)~~
  • [x] Configure using command line
• [x] Inputting encrypted text into a machine with the same configuration should result in the plain text being returned

Usage

./build/Enigma -f test.txt -d encrypted.txt
./build/Enigma -f test.txt
./build/Enigma hello
./build/Enigma "hello there"    # Use quotes for more than one word
./build/Enigma -r1 2 -r2 4 -relf A "hello there"