In <9305252227.AA27968@toad.com>, John Gilmore wrote...
My favorite scheme was to encode messages in trailing spaces and/or tabs in netnews messages. You could also put internal tabs in place of spaces.
In fact, you could do this with news messages that flow "through" your site, (if the messages aren't protected with a crypto checksum), so that you would not be the message's sender (and it wouldn't be addressed to anyone either -- recipients get very good privacy).
This would be one way for a Unix "worm" program to report back to its master...and/or receive instructions.
John Gilmore
PS: You could put short interesting stuff just in your message-ID's! Not to mention the low order bits of timestamps (exactly *what* second did it arrive, now?).
/* Jonathan Stigelman, Stig@netcom.com, PGP public key by finger */ /* fingerprint = 32 DF B9 19 AE 28 D1 7A A3 9D 0B 1A 33 13 4D 7F */