Zxcvbn

Ruby port of Dropbox's zxcvbn.js JavaScript library running completely in Ruby (no need to load execjs or libv8).

The intention is to provide an option 100% Ruby solution with all the same features and same results (or as close to the original JS function as possible).

Installation

Add this line to your application's Gemfile:

gem 'zxcvbn'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install zxcvbn

Usage

Zxcvbn.zxcvbn("password")
=> {
  "password" => "password",
  "guesses" => 3,
  "guesses_log10" => 0.47712125471966244,
  "sequence" => [
    {
      "pattern" => "dictionary",
      "i" => 0,
      "j" => 7,
      "token" => "password",
      "matched_word" => "password",
      "rank" => 2,
      "dictionary_name" => "passwords",
      "reversed" => false,
      "l33t" => false,
      "base_guesses" => 2,
      "uppercase_variations" => 1,
      "l33t_variations" => 1,
      "guesses" => 2,
      "guesses_log10" => 0.3010299956639812
    }
  ],
  "calc_time" => 1,
  "crack_times_seconds" => {
    "online_throttling_100_per_hour" => 108.0,
    "online_no_throttling_10_per_second" => 0.3,
    "offline_slow_hashing_1e4_per_second" => 0.0003,
    "offline_fast_hashing_1e10_per_second" => 3.0e-10},
  "crack_times_display" => {
    "online_throttling_100_per_hour" => "2 minutes",
    "online_no_throttling_10_per_second" => "less than a second",
    "offline_slow_hashing_1e4_per_second" => "less than a second",
    "offline_fast_hashing_1e10_per_second" => "less than a second"
  },
  "score" => 0,
  "feedback" => {
    "warning" => "This is a top-10 common password",
    "suggestions" => [
      "Add another word or two. Uncommon words are better."
    ]
  }
}

Compatible with zxcvbn-js and zxcvbn-ruby

This gem include a compatible interface so it can be used as a drop-in substitution for zxcvbn-js or zxcvbn-ruby. You can just call Zxcvbn.test or use Zxcvbn::Tester.new the same way as you would if you were using zxcvbn-js or zxcvbn-ruby.

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/formigarafa/zxcvbn. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Zxcvbn project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.