Question: BOB Message fm) ALICE Hash Function MAC Hash Function Message (m) Yes Same? MAC Insecure medium MAC Study the scheme that is shown in the

BOB Message fm) ALICE Hash Function MAC Hash Function Message (m)

BOB Message fm) ALICE Hash Function MAC Hash Function Message (m) Yes Same? MAC Insecure medium MAC Study the scheme that is shown in the scenario above, and answer the following question: Show whither this scheme guarantee the following security services (please justify your answer for each service): First: Message integrity. Second: Message confidentiality Third: Non-repudiation. Fourth: Message authentication. Fifth: Entity authentication

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