Question: PLEASE DO NOT COPY ANSWER FROM ANOTHER POST. Problem 2 In AES GF(28) is defined as an extension field of Z2 by using the rreducible

PLEASE DO NOT COPY ANSWER FROM ANOTHER POST.

PLEASE DO NOT COPY ANSWER FROM ANOTHER POST. Problem 2 In AES

Problem 2 In AES GF(28) is defined as an extension field of Z2 by using the rreducible polynomial x8+x4+x3+x+1. Now assume that u/Z2 is a root f this polynomial. Perform the following multiplication: u7u5modu8+u4+u3+u+1mod2. - Give the answer without using a computer program, write down your steps. - Use Sage, Gap or Mathematica to verify the result. Print the output showing your steps. (A screenshot is fine too.)

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