Given its an open source app, it should be reasonably easy for the censor to reverse engineer the algorithmically generated domains. Frequent tiny updates would be an interesting solution though. Now that most mobile apps can deliver just deltas to save bandwidth it'd be viable.
I realize now, that it's possible to even dynamically deliver a bytecode of a domain generating algorithm itself or pretty much any circumvention logic by embedding a tiny interpreter into the app.
You don't need to deliver bytecode, just a new seed for the algorithm. Even 64 bits is more than sufficient to ensure that they can't enumerate all possible seeds.
