Promoting Digital Privacy Technologies Act This bill directs the National Science Foundation to support merit-reviewed and competitively awarded research on privacy enhancing technologies. The award of grants for basic research on innovative approaches to the structure of computer and network hardware and software that are aimed at enhancing computer security may include privacy enhancing technologies and confidentiality. The bill also requires the Networking and Information Technology Research and Development Program to submit to Congress a report on the progress of research on privacy enhancing technologies and the development of specified voluntary resources.