Tool to decrypt ideograms cipher: symbols representing letters, words or ideas made 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 encrypted 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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