https://github.com/tom-lord/missy_elliott

A Missy Elliott - inspired encoding algorithm
https://github.com/tom-lord/missy_elliott

Last synced: about 1 month ago
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A Missy Elliott - inspired encoding algorithm

• Host: GitHub
• URL: https://github.com/tom-lord/missy_elliott
• Owner: tom-lord
• License: mit
• Created: 2015-03-21T16:23:20.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-03-29T19:47:31.000Z (over 9 years ago)
• Last Synced: 2024-08-04T07:04:06.562Z (5 months ago)
• Language: Ruby
• Homepage:
• Size: 145 KB
• Stars: 99
• Watchers: 6
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# MissyElliott

[![Gem Version](https://badge.fury.io/rb/missy_elliott.svg)](http://badge.fury.io/rb/missy_elliott)

[![Build Status](https://travis-ci.org/tom-lord/missy_elliott.svg?branch=master)](https://travis-ci.org/tom-lord/missy_elliott/builds)

[![Missy Elliott](http://i.imgur.com/P23jxLq.jpg)](https://www.youtube.com/watch?v=zm28EEeyLek)

```ruby

MissyElliott.encode("Example") # => "\xAE\xF0\xBC\xA4\xF8\xE4\xAC"

#"Example"

#--> ["E", "x", "a", "m", "p", "l", "e"]

#--> [69, 120, 97, 109, 112, 108, 101]

#--> ["01000101", "01111000", "01100001", "01101101", "01110000", "01101100", "01100101"]

# Shift yo bits down

#--> ["10001010", "11110000", "11000010", "11011010", "11100000", "11011000", "11001010"]

# Flip it

#--> ["01110101", "00001111", "00111101", "00100101", "00011111", "00100111", "00110101"]

# And reverse it

#--> ["10101110", "11110000", "10111100", "10100100", "11111000", "11100100", "10101100"]

#--> [174, 240, 188, 164, 248, 228, 172]

#--> ["\xAE", "\xF0", "\xBC", "\xA4", "\xF8", "\xE4", "\xAC"]

#--> "\xAE\xF0\xBC\xA4\xF8\xE4\xAC"

MissyElliott.decode("\xAE\xF0\xBC\xA4\xF8\xE4\xAC") # => "Example"

```

Although `MissyElliott.encode` and `MissyElliott.decode` have different implentations, they are actually doing the exact same thing!

This is because the algorithm is a reciprocal cipher. [See what I had to say about all this on my blog](http://tom-lord.weebly.com/blog/missy-elliotts-reciprocal-cipher-and-perfect-oscillating-sequences).

This gem is a blatant rip-off of [an old XKCD comic](http://xkcd.com/153/):

![XKCD Comic](http://imgs.xkcd.com/comics/cryptography.png)

## Installation

Add this line to your application's Gemfile:

```ruby

gem 'missy_elliott'

```

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install missy_elliott

## Contributing

1. Got a bug fix?

2. You'd better work on it    ( https://github.com/tom-lord/missy_elliott/fork )

3. Create your feature branch (`git checkout -b my-new-feature`)

4. Commit it                  (`git commit -am 'Add some feature'`)

5. And converse it            (`git push origin my-new-feature`)