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Trifid Cipher: Encrypt and Decrypt Online

The Trifid cipher combines substitution with transposition and fractionation. It was invented by Felix Delastelle, a Frenchman who invented several other ciphers including the bifid cipher and the four-square ciphers. Trifid cipher is very similar to bifid cipher, except that instead of a 5 by 5 key square (in bifid) it uses a 3 by 3 by 3 key configuration.

Use the above Trifid cipher decoder and encoder to encrypt/decrypt simple messages.

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