Consider the Diffe-Hellman scheme with q = 11 and = 6. (a) Show that 6 is a primitive root of 11. (b) If A has the public key YA = 7, what is the private key XA. Show all calculations. (c) If B has the public key YB = 3, what is the private key XB. Show all calculations. (d) Show the calculation done by A to get the shared key KAB. (e) Show the calculation done by B to get the shared key KAB.