Hi friendly moderators,
I'd like to migrate my question to crypto.SE because I believe it would be a better fit there (even though it has an accepted answer). Unfortunately, I don't have enough super powers to do that myself.
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In this specific case, I don't see a reason to migrate. The question is on-topic here. In fact, it's arguably more on-topic here than on Crypto, since it's about security properties related to information flow, and not about how cryptography works. Furthermore the question has had a satisfactory answer. We would only migrate a question away if it was off-topic, or at least if it was borderline, more off-topic elsewhere and unlikely to be satisfactorily answered here. These conditions do not apply.