For example, if the daily code is SEC and the message code is MES then the Germans will use the daily code SEC to encode MESMES. This might result in the ciphertext XFYZQM. Only these first 6 letters are encrypted with SEC. The rest of the message is encrypted with MES. The next message (on the same day) might have a message code COD. In this case, the daily code SEC is used to encode CODCOD which might result in the ciphertext IWVUBB.
Let’s imagine the daily code the machine is set it with is AAA.
Would this turn the plaintext “X” into the ‘ciphertext’ “X”?
But not “XX” to “XX”, because typing changes the configuration?
3. Crypto.
create another
Let’s imagine the daily code the machine is set it with is AAA.
Would this turn the plaintext “X” into the ‘ciphertext’ “X”?
But not “XX” to “XX”, because typing changes the configuration?
Fixed typo.
No, for a couple reasons.
First of all, each of the rotors have a different wiring. For example, in the first rotor, A might be wired to B and B might be wired to M.
Secondly, the reflector makes it impossible for any letter to be mapped to itself.
You are correct that the plaintext AAA is unlikely to be encrypted into the same letter multiple times such as BBB, due to the rotating rotors.
The rotors move after each typed character, but the way they move is independent of which character it is?
Yes. They move independent of which character it is.