I had an idea like this a bit ago, where essentially you would dump your tiny (PGP) message in a giant noise haystack at a random, or generated offset. These messages would get rolled up into a big torrent that gets served every so often.<p>This is similar to PGP over Usenet, but has the advantage of fooling traffic analysis as well.<p>It is actually more like dead drops, storing something secret or obfuscated in a very public place, and agents check it only every so often. Since it would just look like a giant torrent, it would be very hard to detect legitimate torrent mirroring from also pulling information out.<p>Only problem is still the message expiration, which I don&#x27;t really believe is possible except when using a third party server.