Using PGP assyncronous keys to encrypt data in Ruby

ruby_pgp

#!/usr/bin/env ruby

require 'openssl'
require 'base64'

public_key_file = '/path/to/key.pem';
string = 'Hello World!';

public_key = OpenSSL::PKey::RSA.new(File.read(public_key_file))
encrypted_string = Base64.encode64(public_key.public_encrypt(string))

print encrypted_string, "\n"