Bankekode-koder/-dekoder
Kod og afkod tekst med Polybius-firkant-bankekode-chifferet
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Tap Code
Encode and decode text using tap code, a Polybius square cipher variant historically used by prisoners to communicate through walls.
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Tap Code Grid (Polybius Square)
| . | .. | ... | .... | ..... | |
|---|---|---|---|---|---|
| . | A | B | C | D | E |
| .. | F | G | H | I | J |
| ... | L | M | N | O | P |
| .... | Q | R | S | T | U |
| ..... | V | W | X | Y | Z |
Note: The letter K is replaced by C in the traditional tap code grid.