Question: question b Problem 8 Polynomial arithmetic in Keccak's function (7 marks) Assume Keccak is used with a width of b = 1600, so the Keccak

question b Problem 8 Polynomial arithmetic in Keccak's function (7 marks)

question b

Problem 8 Polynomial arithmetic in Keccak's function (7 marks) Assume Keccak is used with a width of b = 1600, so the Keccak state A is a 5 x 5 x 64 bit array. Recall that in Keccak's function 1, the bits A[0, 0, 21 1] with 0 0. a. (4 marks) Compute zl (mod 28 +216 +25 +24+1). Your answer should be a polynomial of degree 0. a. (4 marks) Compute zl (mod 28 +216 +25 +24+1). Your answer should be a polynomial of degree

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