>>33980309Most encryption algorithms use something called a "trap door" function, basically it's easy to go through but only one way. Many do this with modulus math to make it more or less impossible to determine what the algorithm is in its entirety.
This is from the first week of my Computer and Network Security course so it may be an overly simplified explanation of why this doesn't work, but the core idea is to make it impossible to reverse engineer.
This leaves guesswork as the only answer. Image is from the SM demo but is still accurate.
