Tool to decrypt/encrypt with semaphore flags. The semaphore alphabet is a visual communication system using hand-held flags by a standing man.
Flag Semaphore - dCode
Tag(s) : Communication System, Symbol Substitution
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The Semaphore encryption uses 2 flags (or other visual element, usually red and yellow) and a person, if possible standing (so as not to hinder arm movements).
Each letter as well as the character space is represented by a flag, the digits (1234567890) are represented by the letters from A to K.
Example: 'FLAG' translates to
There are 5 special flags:
The flags are presented in the reception mode, the transmitter looks towards the receiver (a person emitting a message will have to imagine the character mirrored).
Semaphores signals decryption is done by matching the positions of the flags with the letters of the alphabet.
The system of flags and the alphabet spread throughout the world in the 19th century.