This is a little phrase generator suitable for generating temporary passwords. You probably don't want the nuclear launch button protected by these passwords.
gem install xkcd_sfw_generator
or via Gemfile
gem xkcd_sfw_generator
To just get a single phrase:
XkcdSfwGenerator.generate(2) # => "horsechair"
To get an object suitable for creating multiple passwords (and not incur the cost of loading the dictionary each time):
generator = XkcdSfwGenerator::Generator.new
generator.generate(2)Sometimes it's useful to keep getting the same password for testing purposes:
XkcdSfwGenerator.generate(2,3) # 2nd argument is a seed value for a randomizer
For the instance approach you give it an instance of Random (or any class with the same interface):
randomizer = Random.new(3)
generator = XkcdSfwGenerator::Generator.new(randomizer)
generator.generate(2)You can capitalize the first letter of each word in the phrase.
For the helper
XkcdSfwGenerator.generate(2,nil,true) # nil is for the seedor when getting an instance of the generator
generator = XkcdSfwGenerator::Generator.new
generator.generate(2,true)we even have those! Using Rspec:
rspec spec
Adding to the word list would increase entropy, which is a nice feature. We really do want to keep the words common enough so that remembering them isn't hard.
With that in mind, fork and generate pull requests to your heart's content.
If you change the interface or something, be sure to include tests.
To other, similar libraries such as:
- KevenLiddle's battery-staple
- Govan's XKCD-password-generator
For the SFW word list, a special, special thanks to Jeff Preshing for this post.
For the comic that inspired it all, thank you to xkcd.
Ruby code released under:
The MIT License (MIT)
Copyright (c) 2013 Big-Oh Studios, Inc.
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Copyright (c) 2011, Jeff Preshing http://preshing.com/20110811/xkcd-password-generator All rights reserved.
Some parts based on http://www.mytsoftware.com/dailyproject/PassGen/entropy.js, copyright 2003 David Finch.
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