Polyalphabetic substitution cipher with keyword repetition
I/J treated as same letter (I/J merged)
Vigenère Matrix Reference (3 columns)
| # | K | E | Y |
|---|---|---|---|
| A | K | E | Y |
| B | L | F | Z |
| C | M | G | A |
| D | N | H | B |
| E | O | I | C |
| F | P | J | D |
| G | Q | K | E |
| H | R | L | F |
| I | S | M | G |
| J | T | N | H |
| K | U | O | I |
| L | V | P | J |
| M | W | Q | K |
| N | X | R | L |
| O | Y | S | M |
| P | Z | T | N |
| Q | A | U | O |
| R | B | V | P |
| S | C | W | Q |
| T | D | X | R |
| U | E | Y | S |
| V | F | Z | T |
| W | G | A | U |
| X | H | B | V |
| Y | I | C | W |
| Z | J | D | X |
Lookup: row=plaintext letter, column=key letter, intersection=ciphertext letter