Answer the following statements true (T) or false (F)
1. Message authentication is a mechanism or service used to verify the integrity of a message.
2. The order in which the frame check sequence and encryption functions are performed is not critical for authentication.
3. The MAC does not provide a digital signature because both sender and receiver share the same key.
4. A recipient in possession of the secret key cannot generate an authentication code to verify the integrity of the message.
5. One means of forming a MAC is to combine a cryptographic hash function in some fashion with a secret key.
1. TRUE
2. FALSE
3. TRUE
4. FALSE
5. TRUE
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