Tool to decrypt/encrypt ADFGX. ADFGX is a German encryption system, an old version of ADFGVX cipher, which uses a 5x5 square grid and a double mechanism of substitution then transposition.
ADFGX Cipher - dCode
Tag(s) : Substitution Cipher, Transposition Cipher
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The decryption process is identical to the ADFGVX cipher.
The ciphertext should contains only 5 distinct characters: A, D, F, G and X.
(Optional) The ciphered message must have number of character divisible by the permutation length.
The name of the man who deciphered it war Painvin, a name that contains 2 French words: bread (pain) and wine (vin), any reference is a clue.
To crack ADFGX without a key, there is no method other than the brute-force attack (test of all possible permutations).
The 5 letters A, D, F, G and X have been selected due to their Morse code equivalent. Indeed, their transcriptions are quite different, which avoids possible errors during radio transmissions.
GEDEFU 18 stands for GEheimschrift DEr FUnker 18 which translates as radiotelegraphists 18 cipher is the old name of the ADFGX and ADFGVX ciphers.