janus-shuffle

Janus-Shuffle applies davidbau's seedrandom to power the randomness requirement of coolaj86's knuth-shuffle, allowing a user to shuffle strings based on string-based seeds. Before shuffling, character occurernces are evenly applied to the string to guard against weight analysis. This library will work in NodeJS and on the browser.

Installation

npm install janus-shuffle

API

shuffle(str, key)

str is the string you wish to shuffle.

key is the key that will seed the random number generator.

This function returns a shuffled string.

deshuffle(str, key)

str is the string you wish to deshuffle.

key is the key that will seed the random number generator. The key will have to be the same that was used during the shuffle to deshuffle the string correctly.

This function returns a deshuffled string.

Examples

var Shuffler = require('janus-shuffle');

var shuffled = Shuffler.shuffle('This is a test statement', 'key');
// htttse iam asstis tT een

var unshuffled = Shuffler.deshuffle(shuffled, 'key');
// This is a test statement