Tool to decrypt/encrypt with the D3 code. D-3 is a substitution cipher system whose principle is to associate the letter D with the digit 3. D3 is the abbreviation of the french city/word 'Detroit'.
D3 Code - dCode
Tag(s) : Substitution Cipher
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D-Three Encryption is a particular variant of the A1Z26 (alphabetical rank), but rather than using A=1, the code selects D=3, and the other letters follow the same logic, E=4, F=5 etc.
Example: DCODE is coded 3/2/14/3/4
D-3 Decryption associates to each numbers a unique letter (defined during the encryption process according to selected association along with 3=D). (See variants)
A message coded with D3 is composed of numbers, theoretically between 1 and 26, and most probably, the digit 4 of letter E will be more represented.
Any reference to the city of Detroit, Gibraltar, or any strait (détroit in French) is a clue.
Since D=3 remains invariant, only the way of writing the other letters can change, according to increasing numbers C=2,D=3,E=4 or decreasing C=4,D=3,E=2 even, use negative numbers if necessary (via calculations modulo 26).
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Cite as source (bibliography):
D3 Code on dCode.fr [online website], retrieved on 2023-12-03,