Blast! That would require our solution to break all known encryption. Then it would be easier to just target Goldman's setup.
A file with output from AES-256("sekrit") would not be random to Goldman. It would appear random to us, until we crack it with a plausible password. Key to randomness is unpredictability. The moment Goldman saves some atmospheric noise on his computer and makes a short pointer to it on his filesystem, is the moment this file loses its claimed unpredictability. Goldman knows this file deeply: He himself has compressed meaningless random data into predictable information that has meaning and purpose, a feat he set out to prove impossible. By simply entering the challenge with real meaningless randomness you make Goldman solve it for you.
A file with output from AES-256("sekrit") would not be random to Goldman. It would appear random to us, until we crack it with a plausible password. Key to randomness is unpredictability. The moment Goldman saves some atmospheric noise on his computer and makes a short pointer to it on his filesystem, is the moment this file loses its claimed unpredictability. Goldman knows this file deeply: He himself has compressed meaningless random data into predictable information that has meaning and purpose, a feat he set out to prove impossible. By simply entering the challenge with real meaningless randomness you make Goldman solve it for you.