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UGC NET CS 2014 Dec-Paper-2
October 12, 2023
Algorithms
October 12, 2023
UGC NET CS 2014 Dec-Paper-2
October 12, 2023
Algorithms
October 12, 2023

UGC NET CS 2014 Dec-Paper-2

Question 30
How many distinct stages are there in DES algorithm, which is parameterized by a 56-bit key ?
A
16
B
17
C
18
D
19
Question 30 Explanation: 
Total 19 distinct stages are there in DES algorithm, which is parameterized by a 56-bit key(and +8 parity bits). The block size is 64 bits and uses 16 rounds.
Correct Answer: D
Question 30 Explanation: 
Total 19 distinct stages are there in DES algorithm, which is parameterized by a 56-bit key(and +8 parity bits). The block size is 64 bits and uses 16 rounds.
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