On the Subject of Synapse Cipher
Hmm… Well this looks quite familiar.
The module consists of a window with three displays, a page counter on the right, two arrow buttons to go to the previous or next page, and a button to go into submission mode.
To disarm the module, decrypt a word using the following four steps:
Step 1: Superposition Cipher
Take the encrypted word on the top screen of page 1, and keyword on the top screen of page 2. Remove any duplicate letters in the keyword while keeping the 1st occurrence. Take the entire alphabet and remove all the letters shown in the keyword.
If the number of ports is prime, put the alphabet at the end of the keyword. Otherwise, put the alphabet in front of the keyword.
Using the constructed alphabet, labeled C, keywords on the middle and bottom screens of page 2 as A and B respectively, perform the following procedure for each letter in the encrypted word:
- Start from the Xth letter of A. Count how many steps it takes to reach the Xth letter of B, wrapping around if necessary.
- Count this many letters from the Xth encrypted letter in the same direction from the last step to obtain the Xth decrypted letter in C, wrapping around if necessary.