Talk:Playfair cipher/to do

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Hello

The example used needs to be changed, because usually the letter removed from the box is the letter "J", not the "Q" as is done in the example.

Now:

P L A Y F
I R E X M
B C D G H
J K N O S
T U V W Z

sugested:

P L A Y F
I R E X M
B C D G H
K N O Q S
T U V W Z

If change is done, the example section will be:


[edit] Example

Using "playfair example" as the key, the table becomes:

P L A Y F
I R E X M
B C D G H
K N O Q S
T U V W Z

Encrypting the message "Hide the gold in the tree stump":

HI DE TH EG OL DI NT HE TR EX ES TU MP
                            ^
  1. The pair HI forms a rectangle, replace it with BM
  2. The pair DE is in a column, replace it with OD
  3. The pair TH forms a rectangle, replace it with ZB
  4. The pair EG forms a rectangle, replace it with XD
  5. The pair OL forms a rectangle, replace it with NA
  6. The pair DI forms a rectangle, replace it with BE
  7. The pair NT forms a rectangle, replace it with KU
  8. The pair HE forms a rectangle, replace it with DM
  9. The pair TR forms a rectangle, replace it with UI
  10. The pair EX (X inserted to split EE) is in a row, replace it with XM
  11. The pair ES forms a rectangle, replace it with MO
  12. The pair TU is in a row, replace it with UV
  13. The pair MP forms a rectangle, replace it with IF


BM OD ZB XD NA BE KU DM UI XM MO UV IF

Thus the message "Hide the gold in the tree stump" becomes "BMODZBXDNABEKUDMUIXMMOUVIF".