self_signed_cert.rb

require 'rubygems'
require 'openssl'
require 'digest'
require 'sinatra'
require 'rack/ssl'

use Rack::SSL
use Rack::Auth::Basic, "Restricted Area" do |username, password|
  [username, password] == ['admin', 'password']
end

get '/' do

timeout = 60
 
key = OpenSSL::PKey::RSA.new(1024)
public_key = key.public_key

subject = "/C=BE/O=Test/OU=Test/CN=Test"

cert = OpenSSL::X509::Certificate.new
cert.subject = cert.issuer = OpenSSL::X509::Name.parse(subject)
cert.not_before = Time.now
cert.not_after = Time.now + timeout
cert.public_key = public_key
cert.serial = sha256.hexdigest @Command
cert.version = 2

ef = OpenSSL::X509::ExtensionFactory.new
ef.subject_certificate = cert
ef.issuer_certificate = cert
cert.extensions = [
  ef.create_extension("basicConstraints","CA:TRUE", true),
  ef.create_extension("subjectKeyIdentifier", "hash"),
  # ef.create_extension("keyUsage", "cRLSign,keyCertSign", true),
]
cert.add_extension ef.create_extension("authorityKeyIdentifier",
                                       "keyid:always,issuer:always")

cert.sign key, OpenSSL::Digest::SHA1.new

cert.to_pem
end