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Which of the following is a true statement regarding the indicated block cipher mode? Select two. a . GCM computes a MAC to ensure the
Which of the following is a true statement regarding the indicated block cipher mode? Select two.
a
GCM computes a MAC to ensure the message was not tampered with during transmission.
b
CTR requires the control engine on the sender and receiver to be synchronized.
c
Although ECB uses a basic approach, it is still among the most effective block cipher modes.
d
CBC uses the output of a round of encryption as input for the next round.
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