2,464 views
1 votes
1 votes

The Data Encryption Standard (DES) has a function consists of four steps. Which of the

        following is correct order of these four steps?

  1. An expansion permutation, S boxes, an XOR operation, a straight permutation
  2. An expansion permutation, an XOR operation, S-boxes, a straight permutation
  3. A straight permutation, S – boxes, an XOR operation, an expansion permutation
  4. A straight permutation, an XOR operation, S boxes, an expansion permutation

 

1 Answer

0 votes
0 votes

$\underline{\textbf{Answer:}\Rightarrow}\;2)$ 

$\underline{\textbf{Explanation:}\Rightarrow}$

$\therefore\;\text{Option}\;2) $ is the correct answer.

Related questions

0 votes
0 votes
1 answer
1
Na462 asked Sep 20, 2018
1,216 views
1 votes
1 votes
0 answers
3
Aboveallplayer asked Sep 2, 2016
619 views
is AES ,DES,Block ciphers in syllabus.....i think in syllabus it is cryptography and network security mentioned
2 votes
2 votes
1 answer
4
rakeshcoresoft asked Dec 30, 2018
354 views