gen_random

# File lib/securerandom.rb, line 64
      def self.gen_random(n)
        @hProv ||= get_provider
        bytes = " ".force_encoding("ASCII-8BIT") * n
        if CryptGenRandom(@hProv, bytes.size, bytes) == 0
          raise SystemCallError, "CryptGenRandom failed: #{Kernel32.last_error_message}"
        end
        bytes
      end