Tap Code
The Tap Code Cipher is a substitution cipher that encodes letters based on their position in a 5x5 Polybius square, typically combining the letters I and J. Each letter is represented by two numbers: the row and column where it appears in the square. These numbers are then expressed as a series of taps, with the number of taps indicating the row and column.
Semaphore Cipher
The Semaphore Cipher is a visual signaling cipher that encodes letters using flag positions. Each letter of the alphabet is mapped to a unique combination of symbols representing the positions of two flags. Historically, it was used for maritime and military communication, allowing messages to be sent across distances without electronic devices.
In this version, each letter is represented by a pair of symbols based on a standard semaphore mapping. Spaces between words are preserved, but the letters themselves are replaced by their semaphore symbol pairs.