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 ^
- The pair HI forms a rectangle, replace it with BM
- The pair DE is in a column, replace it with OD
- The pair TH forms a rectangle, replace it with ZB
- The pair EG forms a rectangle, replace it with XD
- The pair OL forms a rectangle, replace it with NA
- The pair DI forms a rectangle, replace it with BE
- The pair NT forms a rectangle, replace it with KU
- The pair HE forms a rectangle, replace it with DM
- The pair TR forms a rectangle, replace it with UI
- The pair EX (X inserted to split EE) is in a row, replace it with XM
- The pair ES forms a rectangle, replace it with MO
- The pair TU is in a row, replace it with UV
- 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".