Hello, I need help with the M4 decryption. Obviously doing something wrong and can not figure out my problem. I have copies of my worksheets and can email them if they will help. one question I have is: should I be using Triton or any other advanced procedure for all of the M4 messages? I am using the basic procedure for Kriegsmarine M4-UKW=B or C Basic Procedure for decrypting a 4 rotor message.