Given the plaintext {0F0E0D0C0B0A09080706050403020100} and the key {02020202020202020202020202020202}: a. Show the original cont
ents 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.
1 answer:
Answer:
Check the explanation
Explanation:
We will be arranging the plaintext in a 4 * 4 matrix <u><em>(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.)</em></u> in the step by step explanation below.
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Answer:
Explanation:
Let's do this in Python. We know that the formula for the centripetal force caused by whirling the mass is:
where v is the speed (1, 10, 20, 40) and r = 3 m is the rope length.
Then we can use for loop to try calculating the tension force of each speed
def maximum_speed(m):
for speed in [1, 10, 20, 40]:
tension_force = m*speed^2/3
if tension_force > 60:
return speed
return speed