xkcd936

xkcd936 style passphrase generator.

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Xkcd936

Gem Version

xkcd936 style passphrase generator.

But we use 5 words instead of 4, since 5 words will achieve an entropy of:

log(99171)/log(2)*5 = 82.988

This is enough. NIST recommends 80-bits for the most secure passwords. And it roughly needs 6 billions USD to break.

Installation

Add this line to your application's Gemfile:

gem 'xkcd936'

And then execute:

$ bundle

Or install it yourself as:

$ gem install xkcd936

Usage

As a library:

require 'xkcd936'
Xkcd936.generate_passphrase('path/to/dictionary/file')

If you does not give a path, it will use /usr/share/dict/words as default.

As a command line tool:

; xkcd936

Contributing

  1. Fork it ( https://github.com/weakish/xkcd936/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request