The Data Encryption Standard (DES) has a function consists of four steps. Which of the following is correct order of these four steps? An expansion permutation, S boxes, an XOR operation, a straight permutation An expansion permutation, an XOR operation, S-boxes, ... , S - boxes, an XOR operation, an expansion permutation A straight permutation, an XOR operation, S boxes, an expansion permutation

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Dec 29, 2019
in Computer Networks
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