Question:1.

a) Encrypt the message using route cipher abort the mission, you have been spotted" with grid with 5 columns and a route of spiraling inwards counterclockwise from the bottom right

b) Your fellow mate has sent you a secret message using PLAYFAIR CIPHER with the keyword "EXAMINATION".

(1) Decrypt the message:

Xund bfcz cxix zavv qxuu bfa lenpcacc eq ilm wbvE