It's deterministic. Basically it's a state machine and the state transition table itself is the key, iiuc. A few years ago I implemented it with software: htt

It's deterministic. Basically it's a state machine and the state transition table itself is the key, iiuc. A few years ago I implemented it with software: http://blog.practical-scheme.net/gauche/20120715-nash-cipherer http://blog.practical-scheme.net/gauche/20120715-nash-cipher...