Indeed, totally not practical. First, it is a very impressive paper that got into the flagship conference. It presents and solves an intriguing puzzle. The imp

Indeed, totally not practical. First, it is a very impressive paper that got into the flagship conference. It presents and solves an intriguing puzzle. The implied attacker model: you are safe unless your packet traverses an unsafe country. Wrong in my opinion (RFC 7258). As a scientist I've seen this over-and-over again. No healthy scientific community exists around privacy. SIGCOMM-like venue want novel/crazy ideas. We known onion routing works to a large extend. However, it is a career/tenure killer to work on that. No grants. No citations.