ssl_certifier 
This gem provides the cURL ca certficates to allow Ruby/OpenURI to verify the authenticity of SSL certificates. Ruby 1.9.x will, by default, attempt to verify SSL certificates when it performs secure operations. This is good from a security standpoint, but when Ruby cannot find the root certificates (like on most Windows installations), SSL errors will occur. This gem solves that problem.
Installation
gem install ssl_certifier
Rails 3
Put this in your Gemfile:
gem 'ssl_certifier'
Usage
In Rails 3, the gem will be automatically loaded with your environment via Bundler.
In Ruby scripts, simply require the Gem along with your other dependencies:
require 'ssl_certifier'
Issues
Report via Github