node-enigma v1.3.1

node-enigma

Node.js module to cipher and decipher messages. This module is intended to imitate the operation of the Enigma M3/M4 developed during the WWII. For more information on Enigma, visit Enigma Cipher Machine.

Contact me @daveyeb with any questions, feedback or bugs.

New feature 😄

• Machine avoids whitespaces and illegal characters.

• Machine has no dependencies.

Install 🛠

$ npm install node-enigma

Usage 📜

var Enigma = require("node-enigma");

/**
 * M4 CONFIGURATION
 * WHEEL POSITIONS [4TH, 3RD, 2ND, 1ST, REFLECTOR]
 *
 * M3 CONFIGURATION
 * WHEEL POSITIONS [ 3RD, 2ND, 1ST, REFLECTOR]
 *
 * WHEELS
 *   ROTORS['i','ii','iii','iv','v','vi','vii,'viii']
 *   REFLECTORS['ukw-b','ukw-c','b-thin','c-thin']
 *   GREEK['beta', 'gamma']
 */

const m4 = new Enigma("beta", "v", "iv", "iii", "b-thin");
m4.setCode(["C", "D", "E"]);
m4.setPlugboard({
  W: "L",
  D: "N"
});
m4.decode("OGRFHRJYV"); // XXXKMVOXH

const m3 = new Enigma("v", "iv", "iii", "ukw-b");
m3.setCode(["A", "B", "C"]);
m3.setPlugboard({
  Q: "V",
  S: "M"
});
m3.decode("OGRFHRJYV"); // INAPICKLE

const enigma = new Enigma("i", "ii", "iii", "ukw-b");
enigma.encode("BABYDRIVER"); //ADLVITPHWX

Refer to test directory for more basic usage

Contribute 🤝

Clone this repo to add custom wheels. Make a script inside the folder to test outputs with require('./lib/node-enigma'). Any fixes, cleanup or new features are always appreciated.