this gem replaces the RSA signature and RSA ciphers from jruby-openssl by the must faster implementation of them. see corner.squareup.com/2014/02/faster-rsa-jnagmp.html
but this works only for darwin and linux-x84_64 platforms due to the library used from squareup.
the improvement in performance brings JRuby verify and decrypy using RSA close to MRI.
via rubygems
gem install fast-rsa-engine
or add to your Gemfile
gem 'fast-rsa-engine'
installing the gem also takes care of the jar dependencies with jruby-1.7.16+
with bundler its auto-require magic will be sufficient. otherwise just
require 'fast-rsa-engine'
ruby benchmark/benchmark-with-fast-rsa.rb
or ruby benchmark/benchmark-with-builtin-rsa.rb
get all the gems and jars in place
gem install jar-dependencies --development
bundle install
for running all specs
rake
enjoy :)