unless defined? Random
  class Random
    def initialize(seed=Time.now.to_i)
      Kernel.srand(seed)
      @seed = seed
    end

    attr_reader :seed

    def rand(arg)
      Kernel.rand(arg)
    end

    def bytes(n)
      array = []
      n.times do
        array << rand(256)
      end
      array.pack('C*')
    end
  end
end