pygma-enigma

Encryption software that emulates the german enigma machine.

User guide

Setup your machine

• Rotors
  

  from pygma.rotor import Rotor
  
  r1 = Rotor("asdfghjklzxcvbnmqwertyuiop", 9)
  r2 = Rotor("qawsedrftgyhujikolpzxcvbnm", 24)
  r3 = Rotor("zxcvbnmasdfghjklqwertyuiop", 2)
  

  The Rotor function sets the rotor and it requires 2 arguments, the first the alphabet that will correspond to the rotor, and the second the rotor starting point.
  

• Reflector
  

  from pygma.reflector import Reflector
  
  reflector = Reflector("adsfgjhklzcxvbmnqewrtuyiop", 12)
  

  The Reflector function sets the reflector and similarly to the Rotor function it requires 2 arguments, the first the alphabet that will correspond to the reflector, and the second the reflector starting point.
  

• Plug Board
  

  from pygma.plugboard import PlugBoard
  
  pb = PlugBoard("as,de,fr")
  

  The PlugBoard function sets the exchange between two letters it requires 1 arguments that corresponds to the groups of letters to be exchanged.
  
  Example:
  PlugBoard("as,de,fr") means that letter a must be exchanged with s and vice versa, as well as for d and e letters, and for f and r letters.
  

Start Encrypting and Decrypting

• Set Encrypter and Decrypter
  

  from pygma.machine import Machine
  
  e = Machine([r1, r2, r3], reflector, pb)

  The Machine function sets the machine with the declared elements.
  

• Encrypt and decrypt
  

  e.enc_dec("hello!")
  'krcpy!'
  e.enc_dec("krcpy!")
  'hello!'
  

  The enc_dec function encrypts and decrypts given words with the configuration previously set.