KEYED ALPHABET FINDEr

This tool will try to find a key square and keyed alphabet from a mixed keyed alphabet. It can be used with any mixed 25-letter or 36-character alphabet which is based on a key square such as used in the Bifid, Four Square, Playfair etc. It can also be used for 26-letter mixed alphabet keys such as those used by Gromark, Periodic Gromark and Headline ciphers and 27-letter mixed alphabets such as the Trifid cipher which contains the # symbol.

Enter the 25-, 26-, 27-, or 36-letter mixed keyed alphabet into the Enter keyed alphabet field.

Press Find best key.

This shows the best key and key square for the alphabet by testing all possible (48) routes.

For example when entering:

CDFLRUYGMVSAHNWTBIPXOEKQZ

the best keyed alphabet found is:

CUSTODYABEFGHIJKLMNPQRVWXZ

Using the following 36-character mixed keyed alphabet

C3USTOB1AY4D2E5F6GJ9I8H70KLMNPZXWVRQ

The best keyed alphabet found is:

C3USTOD4YA1B2E5F6G7H8I9J0KLMNPQRVWXZ

The 36-character alphabet must only contain letters A-Z and numbers 0-9. Other characters are not recognised.

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