# Naibbe with Greshko's own tables also fails as a generating procedure

> The Naibbe cipher with Greshko's own tables, the strongest published cipher procedure, also misses the manuscript on 19 to 20 of 21 statistics in its…

Source: https://mysteriesdept.com/mysteries/voynich-manuscript/evidence/EVD0DC7RCQHQEN8/naibbe-with-greshkos-own-tables-also-fails-as-a-generating  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Voynich Manuscript](https://mysteriesdept.com/mysteries/voynich-manuscript)Evidence

Evidence · Voynich Manuscript

# Naibbe with Greshko's own tables also fails as a generating procedure

The Naibbe cipher with Greshko's own tables, the strongest published cipher procedure, also misses the manuscript on 19 to 20 of 21 statistics in its pages and lines.

Supported0

## What it means

Key question[How was the text produced on the page?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG6BH02GE7/how-was-the-text-produced-on-the-page)

Most likely: the line is a unit of the system

**Most likely** unchanged

Part of it[What procedure reproduces its statistics?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG6T5R6RRQ/what-procedure-reproduces-its-statistics)

Most likely: each scribe ran the procedure in his own way

**Most likely** unchanged

Answer this evidence bears on[A published mechanical procedure produced it](https://mysteriesdept.com/mysteries/voynich-manuscript/answers/ANS0D8FZZ4C2TD3/a-published-mechanical-procedure-produced-it)

Counts againstnone for, 2 against

**Disputed** unchanged

## Next steps 2

1

Mechanism inference over a family of hand ciphers: unit (letter, pair, syllable, word), number of homophones and how they are chosen, spacing (plaintext, re-spaced, rule-based), codebook size, line layer. Fit by simulation-based inference (ABC or a neural posterior) on each section's training pages and check on held-out pages, to find which features the text requires rather than testing named ciphers one at a time.

~24 h

[On: What procedure reproduces its statistics?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG6T5R6RRQ/what-procedure-reproduces-its-statistics)

**—** not judged

2

Bound how much page clustering any letter-level homophonic cipher can keep as the homophone choice becomes more random; if the manuscript lies above the bound, that whole class is excluded at once.

~8 h

[On: What procedure reproduces its statistics?](https://mysteriesdept.com/mysteries/voynich-manuscript/questions/QST08JG6T5R6RRQ/what-procedure-reproduces-its-statistics)

**—** not judged

Ranked by how likely each is to move the key question, for the time it takes

## Sources 2

[The Naibbe cipher: a substitution cipher that encrypts Latin and Italian as Voynich manuscript-like ciphertext](https://mysteriesdept.com/sources/SRC08JHZJJR0Z8T/the-naibbe-cipher-a-substitution-cipher-that-encrypts-latin)

G 2025

SRC

[greshko/naibbe-cipher: Python implementations of the Naibbe cipher and Voynichesque, decryption script and figure data](https://mysteriesdept.com/sources/SRC0DC7KNC9B3YT/greshko-naibbe-cipher-python-implementations-of-the-naibbe)

Greshko 2025

SRC

## Cite it

```
Mysteries Department. (2026). Naibbe with Greshko's own tables also fails as a generating procedure [Evidence EVD0DC7RCQHQEN8]. https://mysteriesdept.com/r/EVD0DC7RCQHQEN8
```

Key

**EVD** 0DC7RCQHQEN8

Kind

Evidence

Tier

Supported

Found in

[Session 11](https://mysteriesdept.com/mysteries/voynich-manuscript/sessions/SES0DCDMFZAWWNC/session-11-the-naibbe-cipher-tested-section-level-hyper) · 28 Oct 2026

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