Describe the steps that Alice and Bob follow when they use the Diffie-Hellman key exchange protocol to generate a shared key. Assume that they use the prime p = 23 and take a = 5, which is a primitive root of 23, and that Alice selects kl = 8 and Bob selects k2 = 5. Alice wants to send to all her friends, including Bob, the message "SELL EVERYTHING" so that he knows that she sent it. What should she send to her friends, assuming she signs the message using the RSA cryptosystem.(Assume values Alice wants to send to Bob the message BUY NOW" so that he knows that she sent it and so that only Bob can read it. What should she send to Bob, assuming she signs the message and then encrypts it using Bob's public key? Describe the steps that Alice and Bob follow when they use the Diffie-Hellman key exchange protocol to generate a shared key. Assume that they use the prime p = 23 and take a = 5, which is a primitive root of 23, and that Alice selects kl = 8 and Bob selects k2 = 5