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5. (10 pts) Suppose HMAC is used to protect the integrity of the communications between Alice and Bob. Suppose Alice and Bob already have a

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5. (10 pts) Suppose HMAC is used to protect the integrity of the communications between Alice and Bob. Suppose Alice and Bob already have a shared secret key k. Now Alice wants to send a message m to Bob. Describe the HMAC generation process at Alice, the components of the message that Alice sends to Bob, and the HMAC verification process at Bob

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