According to my latest cipher theory, this is a general estimate of what the encipherment process could be:
- (Optional) Prepare your plaintext by removing some letters. Helps to save time.
- (Optional) Split into blocks of equal length. Helps to reduce errors.
- Convert each letter into a number with simple substitution.
- Do some mathemagics to the numbers with Pascal’s Triangle (exact details are trade secret). You now have Voynichese! If you split the plaintext into blocks, each one now corresponds to a line of ciphertext. But some may have ended up with wildly different lengths, so…
- (Optional) Pad out lines with filler at the beginning or end to make them equal length. Helps to make the result look nicer and harder to decipher.