Kizspy | Question: 16
(Choose 1 answer)
What is the role of the Feistel structure in the Data Encryption Standard (DES)?
A. To ensure that decryption is the reverse of encryption by splitting the data block into two halves and processing them in multiple rounds
B. To perform a series of mathematical operations to encrypt the data block
C. To provide a method for generating subkeys from the main key
D. To ensure the integrity of the data by verifying it against a checksum
