24-07-2025, 03:32 PM
Generally, this is a deterministic cipher, the same complete plaintext always produces the same ciphertext. I don't think the cipher in the Voynich Manuscript is deterministic, otherwise the labels and the paragraph (or page) starters would produce an easy break-in point. I suspect that Voynichese is one-to-many, but the choice of the mapping in each case is to some extent arbitrary and this is allows the scribe to use different glyphs near the right margin or in the topmost lines, depending on the excess space or lack of space.