Chris Edwards wrote:
Doesn't necessarily have to be hugely accurate. The authorities could simply identify a few likely suspect tunnels, then knock-on-doors and ask you to explain what the traffic in question is...
Understood. I guess the angle I was going more for was: Is this actually practical to do in a country with almost as many Internet users as the US has people?
I had always assumed that broad policies and ACLs work in China, but most forms of DPI and traffic pattern analysis aren't practical simply for computational feasibility reasons. Not unless the system were highly distributed.
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