I have on old spreadsheet that highlights period 16, 32 and 48 unigram repeats, or period 18, 36 and 54 unigram repeats. Here is a screenshot, but to …
Ben: You should familiarize yourself a little bit with transposition, other classical ciphers, and some of the other 340 patterns. Maybe read the firs…
What type of excel spreadsheets to you stare at 8 hours a day? Just curious. I have many dozens of really cool spreadsheets that I made to create mess…
You gave me an idea. I believe in transposition because of the period 19 bigram repeat stats. So here is the idea. A scytale like cipher. Take a piece…
Very thoughtful and clean work in my opinion. Thank you very much for your contribution. He began the encoding ( actually manual substitution) by pur…
Smokie, I stand corrected. The website I spoke of appears to have actually come from The Department of the Army. It’s A field manual. Chapter 10 that…
I am of the opinion that the 340 cipher is an aperiodic running key cipher. I have a post entitled "408, dripping pen and 340" where I discu…
What is the likelihood that a plain text message could be drafted into a 17×20 grid and then randomly place those letters into another 340 grid, while…
I would add that we discussed P19 for two and a half years before trying this option. Diagnosis of a single message so short is extremely difficult, b…
Like this, very roughly. The symbols are not shown, but the areas from which the symbols could be randomly selected are colored blue. I don’t know rig…
I think that a plaintext could easily do this, and look at the highlighted symbols again there are small sections that are in alignment with each othe…
I found a semi interesting pattern last night before dinner. P19 and P101 bigrams that share the same symbols, and at least one position. Do you see t…
Similar things happen with various test ciphers and I am sure that the disturbed line breaks are the reason. But in no cipher is it as clear as with z…
I have been thinking about hoax lately and how it could be done. Something that would cause the various patterns that we are looking at. Vague idea so…
But yes: A route transposition or two interlocked routes can be a reason. After sequential homophonic substitution? I’d say it is very unlikely. Can …