Interesting. Implemented the Index of Coincidence version for a class in college. Was fun.

This seems like the kind of problem that could be better solved by coming up with a better algorithm. Like, ultimately the model is performing an "algorithm" of sorts on the data to guess the key length.

Inverse: “CryptGPT: Privacy-Preserving Language Models Using Vigenere Cipher”

https://huggingface.co/blog/diwank/cryptgpt-part1

Better switch everything over to Autokey

Time to get rich off the Beale ciphers…

lool I wrote my IB extended essay on this. I had a caesar cipher instead though.