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Q5. (17 points). Prove that actually after MixColumn transformation of the state array 87 F2 4D 97 6E 4C 90 EC 46 E7 4A C3

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Q5. (17 points). Prove that actually after MixColumn transformation of the state array 87 F2 4D 97 6E 4C 90 EC 46 E7 4A C3 A6 8C D8 95 In the resulting state array 47 40 A3 4C 37 D4 70 9F 94 E4 42 ED A5 A6 BC element (2,3) is actually 70. Show your calculations, provide necessary explanations

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