In DES input, key length ___ bits and plaintext length ____ bits.
(a) 56 bit key length, 64 bit plaintext
(b) 56 bit key length, 120 bit plaintext
(c) 64 bit key length, 120 bit plaintext
(d) 64 bit key length, 64 bit plaintext

DES stands for _________ and AES stands for __________
(a) Data Encryption software, Advanced Encryption Software
(b) Data Encryption Standard, Advanced Encryption Standard
(c) Data Encryption System, Advanced Encryption System
(d) None

DES has an initial and final permutation block and ____ rounds
(a) 14
(b) 16
(c) 8
(d) 12

In DES the length of each round key?
(a) 16 bit (b) 32 bit (c) 54 bit (d) 48 bit