On the Subject of The Playfair Cycle
Just because it plays fair doesn't mean it'll play nice.
This module consists of a screen, eight dials with cyan labels, and a QWERTY keyboard.
The X key on the keyboard is faulty and as such, the module no longer recognises X as a letter of the alphabet.
The labels on the dials, when decrypted and read from left to right, spell out an eight letter word.
The encryption process is as follows:
(Since X is omitted, Y=23 and Z=24)
If a pair contains the same letter twice, the second is changed to a Z.
Once deciphered, find the word in the table below, the word written below it is the word that should be entered.
Apply the same encryption to the response word, and type out the encrypted response word using the keys.
The word is automatically submitted when eight keys are pressed.
The red button can be pressed at any time before the eighth key is pressed to cancel the input.
Inputting any of the eight letters incorrectly will cause a strike to be issued and reset the module.