3 ms·
Why? You don’t need to be able to understand a cipher to produce plausible cipher text. You can take headers and footers from real messages and just drop in non
by jameshart 3y ago
Why? You don’t need to be able to understand a cipher to produce plausible cipher text. You can take headers and footers from real messages and just drop in nonsense between. Or retransmit messages you recorded a few days earlier, or random mixtures of bits of real messages. The enemy still has to transcribe them, sort them out, reject the noise.
- mannykannot 3y agoFrom what I recall of how Enigma worked, headers (and footers, if the concept applied) were also encrypted. IIRC a transmission started with the rotor settings for the rest of the message encrypted using the daily setting and sent twice. Even sending this much, such that both copies communicated the same setting, would reveal that Enigma was compromised, I think.