Tool to decrypt/encrypt with the K7 (or K-7) code, a substitution cipher, whose name indicates to associate the letter K with the digit 7. K7 is the abbreviation of the french word 'Cassette'.
K7 Code - dCode
Tag(s) : Substitution Cipher
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
K7 Code
K7 Decoder
K7 Encoder
Answers to Questions (FAQ)
How to encrypt using K7 cipher?
K-Seven Encryption is a variant of A1Z26 alphabetical position cipher, but instead of associating A=1, the code uses K=7, and so on, L=8, M=9 etc.
Example: DCODE is coded 26.25.11.26.1
How to decrypt K7 cipher?
K-7 Decryption is also identical to A1Z26 alphabetical rank cipher (but still with K=7) and for more speed, it is necessary to list letter associations starting from 7=K.
How to recognize K7 code ciphertext?
The message is composed of numbers, usually between 1 and 26.
In theory, the message will have more 1 that represents the letter E by default.
Any reference to the French word Cassette (VHS tape) or the K-7 mountain is a clue.
What are the variants of the K7 code?
If K=7 is invariant how to number other letters can be different from one method to another. Numbers may be increasing (J=6,K=7,L=8) or decreasing J=8,K=7,L=6 and may become negative or calculated modulo 26.
Source code
dCode retains ownership of the "K7 Code" source code. Except explicit open source licence (indicated Creative Commons / free), the "K7 Code" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "K7 Code" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "K7 Code" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
Reminder : dCode is free to use.
Cite dCode
The copy-paste of the page "K7 Code" or any of its results, is allowed (even for commercial purposes) as long as you cite dCode!
Exporting results as a .csv or .txt file is free by clicking on the export icon
Cite as source (bibliography):
K7 Code on dCode.fr [online website], retrieved on 2023-09-27,
