Question

Given the plaintext {0F0E0D0C0B0A09080706050403020100} and the key {02020202020202020202020202020202}: a. Show the original contents of State, displayed as a 4 * 4 matrix. b. Show the value of State after initial AddRoundKey. c. Show the value of State after SubBytes. d. Show the value of State after ShiftRows. e. Show the value of State after MixColumns.

Answer 1

Answer:

Check the explanation

Explanation:

We will be arranging the plaintext in a 4 * 4 matrix (which is a rectangular shaped group of symbols, numbers, or expressions, that are arranged in columns and set rows For example, the dimension of the matrix we will be using to explain the above question is 4 × 4, because there are four rows and four columns.) in the step by step explanation below.