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Methods Cryptanalysis (Lasry 2024)Element-vocabulary solver for mixed keys, with unit discovery and planted-key ladder

Method · cryptanalysis (Lasry 2024)

Element-vocabulary solver for mixed keys, with unit discovery and planted-key ladder

Cryptanalysis (lasry 2024)Version 1.0Licence MIT18 runsUsed on 1 mystery

Questions it answers

Is it a cipher of a known language?

Code Python

Download module (.py)elem_solver.pyView source

Runs and results 18 runs · 6 shown

Run	Mystery	Measured	Result	Against	Date
RUN-081	Voynich	Held-out element score, real minus spelling-permuted null (nats/element), word spacing, learned units	Voynich Latin +0.27 / +0.18 (seeds 3, 4); Italian +0.44	Planted-key control (L5-type) +0.60 / +0.50 · content-free texts with Voynich word structure: slot grammar +0.00, self-copying +0.02 · stream: control -0.36, Voynich -0.22. Dictionary coverage real <= permuted for every text incl. the control (0.33 vs 0.36)	22 Oct
RUN-079	Voynich	Planted mixed key on Latin: held-out word accuracy / key accuracy by use / dictionary coverage (plaintext's)	/ 0.203 / 0.315 (0.849)	Seed 11	22 Oct
RUN-078	Voynich	Planted mixed key on Latin: held-out word accuracy / key accuracy by use / dictionary coverage (plaintext's)	0.087 / 0.254 / 0.356 (0.850)	Seed 11	22 Oct
RUN-077	Voynich	Planted mixed key on Latin: held-out word accuracy / key accuracy by use / dictionary coverage (plaintext's)	/ 0.0 / 0.338 (0.849)	Seed 11	22 Oct
RUN-076	Voynich	Planted mixed key on Latin: held-out word accuracy / key accuracy by use / dictionary coverage (plaintext's)	0.087 / 0.245 / 0.332 (0.850)	Seed 11	22 Oct
RUN-075	Voynich	Planted mixed key on Latin: held-out word accuracy / key accuracy by use / dictionary coverage (plaintext's)	/ 0.082 / 0.235 (0.849)	Seed 11	22 Oct

Applied to

Voynich Manuscript

Voynich Manuscript

1 datasetZL3b transcription