Using the basic Diffie-Hellman scheme with p = 257 and α = 7, let Alice select x = 4, and let Bob choose y equal to the ASCII value of the first letter of your last name (65 ≥ y ≤ 90). What is the...

Using the basic Diffie-Hellman scheme with p = 257 and α = 7, let Alice select x = 4, and let Bob choose y equal to the ASCII value of the first letter of your last name (65 ≥ y ≤ 90). What is the first letter of your last name and its ASCII value? What is the value of αx and αy? Finally what is the key K that Alice and Bob decide upon?