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Cipher

R8 Theta · Frontier
open

A sandbox for classical cryptanalysis, built to teach rather than break.

agent.cipher { status : open ring : R8 Theta domain : Frontier devices : setx users : - since : - publication : - origin : studio draft }

thesis

Historical ciphers are the best available teaching ground for search, statistics and constraint propagation, and everything in them is long declassified. A workbench that shows its reasoning beats one that returns a plaintext.

what it does

  • Classical ciphers only, the pedagogy, not live systems
  • Shows the search, including the branches it abandoned
  • Fails visibly when the key space defeats it

pieces

frequency analysisconstraint search
we are not building this one. if you want it, take it, no attribution needed.

co-build

you want to work on this one with us. tell us what you'd take on.

i steal

not a request. tell us you're taking it & we'll get out of the way.