20-04-2022, 03:05 PM
(20-04-2022, 02:11 PM)Koen G wrote: You are not allowed to view links. Register or Login to view.Usually it would increase entropy. However, in the VM this is never certain, because its predictability works on various levels. So of you introduce this new "u", chances are that this "u" itself becomes very predictable (often preceded by "ch", followed by "d" and so on).
This makes sense and is the reason why subbing out bigrams for single plaintext letters is the way to push the entropy toward a more “language-like” number. You can think of the use of bigrams as the artificial “cause” of the low entropy (high predictability). What Koen’s work shows is that it is possible to address the entropy in this manner. Of course it doesn’t explain precisely how it was done just shows it is possible to move the numbers in the right direction.
I have used the list of bigrams as suggested combinations in testing out cipher approaches without success - but as common with the VM - my tests indicate it can’t be the only effect in use. But l greatly appreciate having some direction to pick from all the myriad of choices once you try to test out verbose ciphers.