Segmenting Numerical Substitution Ciphers

Nada Aldarrab, Jonathan May, 2022.

Offers the first automatic methods for splitting unspaced numerical ciphers into their cipher units, using byte-pair encoding and unigram language models, and a lattice method for reading ciphers whose keys allow more than one value per sign. With it the authors fully solved a real historical cipher, the IA cipher.

Voynich ManuscriptArticledoi: 10.18653/v1/2022.emnlp-main.44Checked against the original0

What it's used for here

The book applies its unigram segmentation to Voynichese in the chapter on looking for the key, and the cryptanalysis survey takes it as the model for a joint segmentation-and-substitution test.

Cited by on this site 4 records

Reading Without a Key

The book, version 2.0

SRC

3 methods surveys

Cryptanalysis, mixed keys, inductive methods

SRC

Cite it

Aldarrab, N., & May, J. (2022). Segmenting Numerical Substitution Ciphers. https://doi.org/10.18653/v1/2022.emnlp-main.44

@misc{aldarrab2022,
  author = {Aldarrab, Nada and May, Jonathan},
  title = {Segmenting Numerical Substitution Ciphers},
  year = {2022},
  doi = {10.18653/v1/2022.emnlp-main.44}
}

TY  - ELEC
TI  - Segmenting Numerical Substitution Ciphers
AU  - Aldarrab, Nada
AU  - May, Jonathan
PY  - 2022
DO  - 10.18653/v1/2022.emnlp-main.44
ER  -

Aldarrab, Nada and Jonathan May. “Segmenting Numerical Substitution Ciphers.” 2022. https://doi.org/10.18653/v1/2022.emnlp-main.44.