In Diffie-Hellman key exchange protocol, g = 7, p = 23, x = 3 and y = 5. What is the value of the symmetry key? Show each step. In Diffie-Hellman key exchange protocol, what happens if x and y have the same value, that is, Alice and Bob have accidentally chosen the same number? Note: x and y are two random numbers chosen by Alice and Bob respectively, g is the generator and p is the prime number.