(a)
The encrypted message using Caesar cipher.
Given:
WHERE SHALL WE MEET.
Calculation:
First, translate the letters of WHERE SHALL WE MEET into their numeric equivalents:
23 08 05 18 05 19 08 01 12 12 23 05 13 05 05 20
Next, encrypt the message by adding 3 to each number...
(b)
The decrypted message using Caesar cipher.