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Positional Mimic Cipher (PM-Cipher)
#43
(17-09-2025, 01:39 PM)oshfdk wrote: You are not allowed to view links. Register or Login to view.Is it possible to compute the entropy with the residuals? Just to have a better understanding.
Also, what is the length of the ciphertext for 10000 Latin symbols?


The cipher is letter-by-letter at fixed positions, so word lengths and total length are preserved. If you feed it 10000 Latin letters, you get 10000 cipher glyphs (same number of words, same per-word length).

Computing entropy with residuals doesn’t really apply (under my opinion). Residuals aren’t part of the ciphertext; they’re the little side notes that tell you which original token a shared glyph stood for.

Think of it like this: the scribe (or his "master") writes the cipher text on one sheet, and on a separate slip he jots the residual numbers (only needed to reverse collisions). What we have in the Voynich is the sheet with glyphs, not the slip. Measuring entropy for "glyphs + residuals" would be measuring a different, two-stream encoding that isn’t observed in the manuscript.
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Messages In This Thread
Positional Mimic Cipher (PM-Cipher) - by quimqu - 10-09-2025, 06:37 PM
RE: Positional Mimic Cipher (PM-Cipher) - by quimqu - 17-09-2025, 02:32 PM

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