xkcd936 style passphrase generator.

Download as .zip Download as .tar.gz View on GitHub


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.


Add this line to your application's Gemfile:

gem 'xkcd936'

And then execute:

$ bundle

Or install it yourself as:

$ gem install xkcd936


As a library:

require 'xkcd936'

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

As a command line tool:

; xkcd936


  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