Tool to decrypt/encrypt in Base 26. Base 26 uses 26 symbols, by using the alphabet's letter, Base 26 cipher can encrypt words with numbers and conversely.

Base 26 Cipher - dCode

Tag(s) : Cryptography, Arithmetics

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*!

Tool to decrypt/encrypt in Base 26. Base 26 uses 26 symbols, by using the alphabet's letter, Base 26 cipher can encrypt words with numbers and conversely.

The encoding with **hexavigesimal** (**base 26** name) uses an arithmetic base change from **base 26** to base 10. The words are considered as written in **base 26** (with 26 symbols: the 26 letters of the alphabet ABCDEFGHIJKLMNOPQRSTUVWXYZ) and converted to base 10.

__Example:__ To code DCODE, written in **base 26**, convert it to base 10: D=3, C=2, O=14, D=3, E=4 so $ 3 \times 26^4 + 2 \times 26^3 + 14 \times 26^2 + 3 \times 26^1 + 4 \times 26^0 = 1415626 $

This method is the most rigorous mathematically, but can raise problems for encrypting words starting with A (which corresponds to the 0 symbol in base 10) and is thus generally ignored at the beginning of the number (001 = 1). It is sometimes considered to use 'A = 1' for some applications in cryptography.

**Hexavigesimal** (**base26**) decryption consists of the conversion from the base 10 to the **base 26** (using the words as **hexavigesimal** numbers with the 26 letters of the alphabet as base symbols).

__Example:__ $ 1415626 = 3 \times 26^4 + 2 \times 26^3 + 14 \times 26^2 + 3 \times 26^1 + 4 \times 26^0 $ so [3,2,14,3,4] in **base 26** and 3=D, 2=C, 14=O, 3=D, 4=E. The plain message is DCODE.

The ciphered message is made of numbers, relatively big (for long words)

Usual word can appears multiple times with the same value in a long text.

Rather than converting normally, the reverse order of letters can be considered (or the word reversed):

__Example:__ DCODE = $ 3 \times 26^0 + 2 \times 26^1 + 14 \times 26^2 + 3 \times 26^3 + 4 \times 26^4 = 1890151 $ (this is equivalent to coding EDOCD).

as A is encoded 0 in **base 26**, when encoding it is null and disappear when decoding.

__Example:__ AB = 0*26^1+1*26^0 = 1 and 1 = B

Add a zero at the beginning of a number to indicate a A at the beginning of a word.

dCode retains ownership of the source code of the script Base 26 Cipher online. Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, Matlab, etc.) which dCode owns rights will not be released for free. To download the online Base 26 Cipher script for offline use on PC, iPhone or Android, ask for price quote on contact page !

base,base26,26,hexavigesimal,modulo,alphabet,number,word

Source : https://www.dcode.fr/base-26-cipher

© 2020 dCode — The ultimate 'toolkit' to solve every games / riddles / geocaching / CTF.

Feedback

▲