Which of the following is true about Message Authentication Code.
A) it uses asymmetric encryption
B) the key is sent to the receiver securely
C) is uses PKI and certificates
D) it uses a private and public key

Question

Quizplus · Accepted Answer

Message Authentication Code (MAC) uses symmetric encryption, where the same secret key is used by both the sender and the receiver. To maintain the confidentiality of the key, it is sent to the receiver securely using a separate mechanism, such as key exchange protocols or pre-shared keys. MAC does not use PKI, certificates or asymmetric encryption with private and public keys.

Which of the Following Is True About Message Authentication Code