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a) Please illustrate AES key expansion in detail. (5 points) (b) Given the round key in Round 5 is 3190D8F7 A7BA623C 48750128 E12C2CA9 w16w17w18w19 What

a) Please illustrate AES key expansion in detail. (5 points)

(b) Given the round key in Round 5 is 3190D8F7 A7BA623C 48750128 E12C2CA9 w16w17w18w19 What is the first word w20 of the round key for Round 5?

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