Random Sources¶ ↑

Random Sources is a Ruby gem that provides genuine random numbers, generated by processes fundamentally governed by inherent uncertainty instead of some pseudo-random number algorithm. It uses services from different online providers.

Current supported random numbers providers:

• Random.org

• Fourmilab’s Hotbits

<img src=“https://secure.travis-ci.org/xuanxu/random_sources.png?branch=master” alt=“Build status” /> <img src=“https://badge.fury.io/rb/random_sources.png” alt=“Gem Version” />

Install the gem:

$ [sudo] gem install random_sources

Then depending on your project you may:

Require the gem directly:

require 'random_sources'

or add it to your Gemfile:

gem 'random_sources', git: 'git://github.com/xuanxu/random_sources.git'

Your entry point is the RandomSources module. With it you can get a list of supported providers and instantiate any of them:

RandomSources.list                   #=> "HotBits, RandomOrg"

RandomSources.generator 'RandomOrg'  #=> <RandomSources::RandomOrg>

Once you have your generator you can ask for the random bytes:

generator = RandomSources.generator 'RandomOrg'

# five integers between 1 and 100:
generator.integers(num: 5, min: 1, max: 100)
# => [45, 61, 22, 96, 70]

# two strings of 10 unique characters including digits and uppercase letters:
generator.strings(num: 2, unique: 'on', digits: 'on', upperalpha: 'on', loweralpha: 'off')
# => ["6ESR61Y1", "K7520E6L"]

You can get integers, strings, sequences, bytes, etc… For a list of all the options of any supported source, check the doc in the wiki

Author

Juanjo Bazán

Copyright

Copyright © 2010 - ∞ Juanjo Bazán

License

Released under the MIT license.