Hi theoldbrewer;

You might as well post a message. If know one gets it that doesn't imply that it is uncrackable. By the way, Welcome to the Forum.

I'm dumbfounded.  I feel like a "jeik".
Very complicated.

Even if I write a computer program to try to decrypt it, I
still don't think I'd get it for many years.

Hi theoldbrewer;

Because no one has cracked it yet does not imply that it is uncrackable. Are you familiar with the German enigma machine. It used 5 rotors (wheels) and later 6 to encode messages. It was cracked by Alan Turing during WWII.

Hi Devante;

I have never actually seen one. What was it like to use it?

Couldn't some of the filling words or letters pollute the message so that it decrypts not how you intended it?

there are 500 letters in the coded text, you do not know how many of these comprise the actual message, you do not know the direction of the text as stated in an earlier post. You therefore need to take any 499 letters,  ie 500C499 = 500C1 = 500  and then put them in every possible order = factorial 500   AND for each order, any letter can equal any of 26 letters according to the coding system I have used, which gives factorial 500 multiplied by 26 to the power 99

This far exceeds the number of atoms in the known universe....

Now repeat for 498 letters used, 497 letters used,  etc  etc


You will find every word in the longer oxford dictionary, and be no nearer guessing which words are mine.

You say there is only one way to test it - What is it - that is the challenge I have thrown down.

Remember when Pasteur "discovered" bacteria, well the learned doctors and scholars were not happy, they could not see what he was telling them, and tried to rubbish him......the same thing happened to a doctor in a maternity hospital, he realised why one ward had 5 times the death rate of another room, he told his superiors, and they ran him out of town...because he said their filthy hands and instruments in the "poor" ward were killing the mothers and babies.....

bobbym wrote:

Hi Devante;

I have never actually seen one. What was it like to use it?

Initially difficult, but I was shown how to use it. Incredibly slow encrypting a message and it felt very 'bulky' - but it was definitely a worthwhile experience. If I remember correctly, the arrangement is not the usual "QWERTY" setup, since the German language has different frequency letters; arrangement is "QWERTZUIO" (1st row), "ASDFGHJK" (2nd row), and "PYXCVBNML" (3rd row). However, though the enigma machine was difficult to crack, and initially very successful for the Germans -- the British did eventually crack the code. They always ended their coded messages with "Heil Hitler", and, not only that, but they became rather careless with their alteration of the machine's three wheels; when you encrypt a code, you spin the wheels several times such that the order is completely different. Instead, the Germans decided to turn only the first wheel by 1 unit, meaning a pattern emerged in the enigma machine's code. They weren't particularly careful with the code configuration either; they published the new configurations monthly, which were accessible to the public -- which the British later discovered. It was the carelessness of the Germans that led to their codes being decrypted so quickly.

Good fun.

Well, my only source was from a Cambridge graduate (working in the codebreaking faculty). I've not done much of my own research.

Bobbym, your reply about subjecting myself to death if I am wrong is very very silly and unworthy of this forum.

We have now established that Bletchley Park had an edge, all messages started or ended with Heil hitler, and they did not spin their rotors often enough.

I accept an army, navy airforce code for thousands of users is difficult and will be solved because of carelessness and stupidity.

My code is for one recipient (although could be for a small group I suppose). I am asking this forum to state how they would crack it, theoretically. At least tell me if I am wrong in saying you will find every word in the longer oxford dictionary due to the mind boggling number of permutations.

Regards

Hi;

Bobbym, your reply about subjecting myself to death if I am wrong is very very silly and unworthy of this forum.

No, it is just a hypothetical. The point is this. In constructing your encoding method you have used methods that have made a diificult code to crack. Those same methods have made it mathematically difficult to verify that it is uncrackable. Therefore you have no certainty that it is uncrackable. It might fall to the first attempt someone makes on it, I can't say.

From what I understand of it your coding method sounds very mechanical. I can't analyze it mathematically to state that it is uncrackable therefore I wouldn't bet big on it. That's why I gave you the somewhat contrived life and death example. You can't say it can't be deciphered, you don't know.

it is a 26 letter alphabet wheel in random order rotating on another such one. It may sometimes advance with each new letter to code. As mentioned earlier, you do not know, in the block I have given you, which is the start letter or end letter, and you do not know how many dummy letters are between the start letter and the end letter, and I would not be daft enough to use the same number of dummy letters between each message letter. I may go left to right, right to left, up from left, up from right, down from left, down from right or a complicated diagonal pattern.

I say again, you need to test every possible permutation and with dummy letters mixed in with message letters, it just cannot be done. Yet if you were the receiving person with the key, you would read the message in less than 2 minutes......

It does not start or end with "Heil Moderators" every time and the message itself sets the "rotors".