Autokey from the rail

Hard. Autokey Vigenère. Primer RAIL, then the plaintext itself becomes the rest of the key. Spaces stripped.

CipherSunday 30 August 2026

Listen

The voice can take a few seconds. A long story, up to a minute.

Open house15 minutes left to read the whole paper.

After the clock, the rest is for subscribers. One A$5 a month

Primer RAIL. After those four letters, the key is the message itself. A under R becomes R.

BEMADLIABNLEAUU

15 letters. Restore the spaces as English. Australia desk weather.

Open house

Fifteen minutes on the house. Then an account and a subscription keep the book open.

The paper

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Autokey from the rail — The Gold Standard