This is an Enigma machine simulator written in Scala. It consist of three Rotors with 26 characters on them which would change by input characters, and a Reflector at the end which makes it possible to Code/Decode with the same setting.

Similar to an Enigma machine, First you need to generate Rotors' today setting from CLI. This will be saved in a file named todays_rotor_state.enigma. Then machine will be initialized using this setting.
For example for a plain text "aaaa", Enigma could return "xuie" (based on Rotors' setting). If you give the cipher text "xuie" back to Enigma, it will decode to "aaaa".
For more info check the Wikipedia page.

Just run main.scala and it gives you the instructions. Preferably using sbt.

• Pickling to Pickle/Unpickle settings to "todays_rotor_state.enigma" file.
• Scala 2.11 (other versions not tested)
• better-files for I/O

• Implement Plugboard
• Support different characters, especially space character
• Get setting from the input
• Create and rotate Map of Rotors, instead of searching into strings