(27-05-2025, 05:37 AM)Kircher Wrote: You are not allowed to view links. Register or Login to view.Anther finding in the deciphering that works is "ORB CARDO" from the previous "ORI CARDO"
I've recently learned through You are not allowed to view links.
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Login to view. about a quite useful metric called Unicity Distance, which is the minimal required length of text to ensure a unique decoding. If your decoded text is shorter than this metric, then it's impossible to prove that your actual decoding is correct even if it looks plausible.
As far as I understand your method, it works via permutation + substitution, so the details of computing the Unicity Distance exactly will be complicated, but it certainly cannot be shorter than the Unicity Distance of simple substitution, because your method obviously has some additional transformations.
According to You are not allowed to view links.
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Login to view. the Unicity Distance for simple substitution in Latin alphabet for English is 28 characters. I'm not sure what's the actual information content of Latin is, compared to English. I've tried compressing Opus Majus in uppercase without punctuation using bzip2 and got about 2.5 bits per character so this is the upper bound. Probably it's on the same scale as English (1.5 bits per character), so we can assume that 28 continuous characters will be required for simple substitution to ensure we are talking about an actual solution and not a random spurious match.
If you cannot provide decoding for image labels, then I'd suggest producing decoded snippets of at least 40 Latin characters long: 28 for simple substitution and some more to allow for additional rules in your method. This is excluding spaces. With anything shorter than that it might not be even theoretically possible to verify that your decoding is valid, because there would be multiple possible ways of producing spurious Latin-like strings from the same ciphertext.
So far most snippets you provided were of about 15-25 characters long, which is quite a bit shorter than needed.