Tool to decrypt ideograms cipher: symbols representing letters, words or ideas. This principle can be repeated by creating unique ideograms for encoding numbers or letters with basic elements such as circles, lines and dots with different values.

Ideograms Cipher (Lines, Circles, Dots) - dCode

Tag(s) : Symbol Substitution

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**Ideograms** encryption associates to each letter of the plain text, a number, which is decomposed in (any) distinct values

__Example:__ The message be crypted is DCODEZ, initially coded by (alphabetic rank) 4, 3, 15, 4, 5, 26 and selected values are 10, 5 and 1 for decomposition.

D = 4 = 0*10 + 0*5+ 4*1

O = 15 = 1*10 + 1*5 + 0*1

Z = 26 = 2*10 + 1*5 + 1*1

Each values corresponds to a selected form (basic element such as a point, a line, a line, a circle, etc.).

__Example:__ A line = 10, a circle = 5, a dot = 1.

Draw any **ideogram** with these items.

__Example:__ Z can be drawn ||o. or |.o_

Ideaograms decryption requires decomposing each **ideogram** in basic forms (generally between 2 and 4 distinct, the most used are dot, circle, line)

__Example:__ Decrypt the message :: .: ∅ .... o

Count the number of appearance of each basic form in each **ideogram**.

:: and .... = 4 dots

.: = 3 dots

∅ = 1 circle et 1 line

o = 1 circle

Then search for values for each basic element. The value of an **ideogram** is given by addition.

__Example:__ Values are line = 10, circle = 5, dot = 1.

Then ::=4 .:=3 ∅=15 ....=4 o=5

Each value corresponds to a letter, for example, the alphabetic rank (A=1, B=2, etc.)

__Example:__ The original plain text is DCODE.

The ciphered message is composed of symbols nearly all distinct, with common factors (geometry, color, size, etc.)

One can crack **Ideograms** with difficulties by testing all values. Note that the value 1 appears often.

Use of colors (or any distinctive element) rather than geometric forms.

Modification of the addition calculus (eg. a color means a multiplication by N, etc.)

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NB: for encrypted messages, test our automatic cipher identifier!

ideogram,symbol,line,circle,dot,value

Source : https://www.dcode.fr/ideograms

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