Kryha - Paper emulator
Kryha Home Page
- Introduction
- Working
- My Simulator
- Paper emulator, this page.
- Cryptanalysis
- Challenges
Introduction
It's easy to create a paper emulator of the Kryha.
You can use the one created by Parker Hitt as an example (see Reference).
My Model
I made a model (very quickly) (see the image below).
Copy and paste it into a graphics program (for example, Paint). Print it twice. You can glue the two sheets onto a piece of cardboard. Then cut out the wheel and the wheel support. Attach the wheel with a thumbtack: this is the trickiest step. The choice of axle and precision will be crucial to the result.
Then fill in the letters and use the emulator!
Reference
- Frode Weierud - The Kryha Cipher Machine - Transcript of 1930 manuscript written by Parker Hitt. link