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Bit-Rate
October 12, 2023
GATE 1994
October 12, 2023
Bit-Rate
October 12, 2023
GATE 1994
October 12, 2023

Computer-Networks

Question 647
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 647 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 647 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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