We reconsider the Diffie$$Hellman key exchange protocol. Assume now that Oscar runs an active man$-$in$-$the$-$middle attack against the key exchange as explained in Sect. $13\mathrm{.}3\mathrm{.}1.$ For the Diffie$$Hellman key exchange, use the parameters p $=467,\backslash$alpha $=2,$ and a $=228,$ b $=57$ for Alice and Bob, respectively. Oscar uses the value o $=16.$ Compute the key pairs kAO and kBO $($i$)$ the way Oscar computes them, and $($ii$)$ the way Alice and Bob compute them.