Zodiac Discussion Forum

cipherkid
@cipherkid
Eminent Member
Joined: August 24, 2019 1:10 am
Topics: 4 / Replies: 31
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Re: Lies, damned lies and coincidences.

Can it also tell us whether grid is special, vs it just being 340 sequential characters like 408? What I mean is, does the shape of the "26 L=17&…

5 years ago
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Re: Columnar transposition, hypothesis tested?

I wonder if we are talking about columnar transposition or columnar rearrangement? (I think) I am thinking about columnar rearrangement. With 17! per…

5 years ago
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Re: Lies, damned lies and coincidences.

The 26 L = 17 observation is very interesting to me […] I’m going to have to have a chew on all this. I know it’s a simple thing, but that first ch…

5 years ago
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Re: Columnar transposition, hypothesis tested?

… the best way to defeat this weakness is to do a columnar transposition. This way you can separate the double letters that created the bigram, and …

5 years ago
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Re: Period 19

(I only joined the forum last week, so I’m not the most experienced to answer but my opinion is..) Period 19 is a very simple transformation, resulti…

5 years ago
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Re: Lies, damned lies and coincidences.

You might want to do this "properly" – I’ve done this by hand in a spread sheet, so may contain errors. This grid is an overlay for the 340…

5 years ago
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Re: Lies, damned lies and coincidences.

I find the distribution of non-repeating sequence lengths (from David Oranchak’s ACA Presentation Video 38:31 – Sorry, I don’t know the source for thi…

5 years ago
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Re: Previous research and results

Quick example: 221 character plain text encoded to 43 symbols, then added 20 null symbols: Solved in under a minute with standard 5-grams so more nu…

5 years ago
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Re: Lies, damned lies and coincidences.

It’s so difficult to create mathematical random by hand that it probably doesn’t matter too much knowing the goal in advance. So the hypothesis would…

5 years ago
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Re: Previous research and results

What sort of research has been done already regarding cipher symbols mapping to pairs of letters such as digraphs, like one symbol meaning "ee&qu…

5 years ago
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Re: Previous research and results

63 symbols vs the 408’s 54 The assumption being that ALL the extra 9 symbols over the 408’s 54 were nulls. I figured that if there were a few more o…

5 years ago
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Re: Lies, damned lies and coincidences.

Since I’m putting all my unhelpful stuff in this threat… I’m aware that it’s very difficult for a human to create a truly random pattern if they try….

5 years ago
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Re: Previous research and results

I can see how quickly this can become disheartening. (Before reading your post above) I ran some quick null experiments on my PC. On the hypothesis …

5 years ago
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Re: Lies, damned lies and coincidences.

I do agree. I guess it’s that middle ground between spotting a pattern that is so common it is almost definitely a coincidence, and something so rare…

5 years ago
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Re: Is z340 a grid cipher?

Ah well, at least it has been explored. I can see its going to be a bit of a problem knowing what things have been tried already, as a newcomer to th…

5 years ago
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