Question

Jony sends a message to Ivy that, “this is our mid week”. Do you think it is possible to encrypt the plaintext using an Additive cipher where you have to select the key based on your ID (use the last two digits of your ID then mod it by 26 as a key. If your ID contains “0”, then replace “0” by “3”). If yes, then show the encryption procedure and ciphertext. Otherwise justify your answer. [For example, your id is 121002070. Then consider the last two digits and replace “0” with “3” (if any) which results in 73. Finally mod this number by 26 which returns 21. Now consider 21 as the key.]

Answer 1

Answer:

I didn't understand this sorry

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