# File lib/mechanize/form/keygen.rb, line 26
  def generate_key(key_size = 2048)
    # Spec at http://dev.w3.org/html5/spec/Overview.html#the-keygen-element
    @key = OpenSSL::PKey::RSA.new key_size
    @spki.public_key = @key.public_key
    @spki.sign @key, OpenSSL::Digest::MD5.new
    self.value = @spki.to_pem
  end