two MACs that are based on the use of a block cipher mode of operation are Data Authentication Algorithm and __________ .
A)GMAC
B)DMAC
C)tMAC
D)CMAC

Question

Quizplus · Accepted Answer

CMAC is a block cipher mode of operation that is used to provide data authentication. It is based on the CBC-MAC mode of operation, but it uses a different method for calculating the MAC value. CMAC is more efficient than CBC-MAC, and it is also more secure.

Two MACs That Are Based on the Use of a Block