Answer Happy

c. Alice, who often uses her company's secure mail server, has just lost her private key, but still has the corresponding public key. i. Is Alice still able to send secret mail? Why? [2 marks] ii. Is Alice still able to decrypt secret mail she receives? Why? [2 marks] iii. Is Alice still able to sign the mail she sends? Why? [2 marks] iv. Is Alice still able to verify the signature of mail she receives? Why? [2 marks] v. Alice wants to send a message m to Bob. She creates a hash of the message hash(m), encrypts this hash with Bob's public key, and sends the encrypted hash with the message m to Bob. Can Bob validate that the content of the message m has not been modified during transmission? Justify your answer. [3 marks)