# File lib/openid/util.rb, line 235
    def Util.get_random_bytes(n)
      bytes = ""

      if Util::HAS_URANDOM
        f = File.open("/dev/urandom")
        while n != 0
          _bytes = f.read(n)
          n -= _bytes.length
          bytes << _bytes
        end
      else
        bytes = Util.random_string(n)
      end

      return bytes
    end