From 518c60b62b9028d3532c9631a98318b151d35fab Mon Sep 17 00:00:00 2001
From: Metin Yorulmaz <metin@me.com>
Date: Fri, 8 Aug 2014 14:56:05 -0400
Subject: [PATCH] Add key pair generator

---
 lib/rsa_authority.rb         |  6 ++++++
 lib/rsa_authority/key_gen.rb | 11 +++++++++++
 spec/key_gen_spec.rb         | 16 ++++++++++++++++
 spec/spec_helper.rb          |  4 ++++
 4 files changed, 37 insertions(+)
 create mode 100644 lib/rsa_authority/key_gen.rb
 create mode 100644 spec/key_gen_spec.rb

diff --git a/lib/rsa_authority.rb b/lib/rsa_authority.rb
index de6b863..a069ade 100644
--- a/lib/rsa_authority.rb
+++ b/lib/rsa_authority.rb
@@ -1,4 +1,10 @@
+require 'openssl'
+require 'base64'
+require 'cgi'
+
 require "rsa_authority/version"
+require "rsa_authority/key_gen"
+
 
 module RSAAuthority
   # Your code goes here...
diff --git a/lib/rsa_authority/key_gen.rb b/lib/rsa_authority/key_gen.rb
new file mode 100644
index 0000000..ce3a580
--- /dev/null
+++ b/lib/rsa_authority/key_gen.rb
@@ -0,0 +1,11 @@
+module RSAAuthority
+  class KeyGen
+    def self.generate(key_name)
+      rsa_private_key = OpenSSL::PKey::RSA.generate(2048)
+
+      File.open("#{key_name}.pem", "w") { |io|  io.write(rsa_private_key.to_s)  }
+
+      File.open("#{key_name}.pub", "w") { |io|  io.write(rsa_private_key.public_key)  }
+    end
+  end
+end
diff --git a/spec/key_gen_spec.rb b/spec/key_gen_spec.rb
new file mode 100644
index 0000000..9ae2a3a
--- /dev/null
+++ b/spec/key_gen_spec.rb
@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe RSAAuthority::KeyGen do
+  let(:test_key_name) { 'example_key' }
+  let(:public_key) { "#{test_key_name}.pub" }
+  let(:private_key) { "#{test_key_name}.pem" }
+
+  after { File.delete public_key, private_key }
+
+  it "generates public and privete key pair" do
+    RSAAuthority::KeyGen.generate(test_key_name)
+
+    expect(File.exists?(public_key)).to be(true)
+    expect(File.exists?(private_key)).to be(true)
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 89642b2..5321738 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,7 @@
+$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
+
+require 'rsa_authority'
+
 # This file was generated by the `rspec --init` command. Conventionally, all
 # specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.
 # The generated `.rspec` file contains `--require spec_helper` which will cause this