Tool to decrypt/encrypt with the K6 code. K-6 is a substitution cipher whose principle is in its name: associating the letter K with the digit 6. K6 is the abbreviation of the french city/word 'Cassis'.
K6 Code - dCode
Tag(s) : Substitution Cipher
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K-Six Encryption is a particular case of the A1Z26 alphabetical rank cipher, but rather than associating A=1, the code uses K=6 and so on: L=7,M=8 etc.
Example: DCODE is coded 25/24/10/25/26
K-6 Decryption associates to numbers a letter (it's the opposite of encryption) and requires to know letters-numbers association other than 6=K (often 7=L,8=M etc.)
A K6 coded message is composed of numbers, often between 1 and 26, and often there is a lot of 26 representing the letter E.
Any reference to the French city of Cassis, the fruit of the cassissier, or the mountain K6 are clues.
If K=6 is an invariant, the way to give a number to the other 25 letters can differ. Numbers may be increasing (J=5,K=6,L=7) or decreasing J=7,K=6,L=5 and may become negative or calculated modulo 26.
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Cite as source (bibliography):
K6 Code on dCode.fr [online website], retrieved on 2023-12-05,