1) Given i=65, j=163 and S is as stated below, Using RC4, encrypt this plaintext message: GMU (use ASCII table) 2) Determine gcd (24140, 16762). Show the steps you perform in doing these calculations. 3) Find the AI and MI of Modulo 5? 4) Given the plaintext which is a hexadecimal palintext "0123456789abcdeffedcba9876543210", and the key {01010101010101010101010101010101}: a. show the original contents of State, displayed as a 4x4 matrix. b. Show the value of state after SubBytes. c. Show the value of state after ShiftRows (performed after SubBytes). d. Show the value after state after MixColumns (performed after ShiftRows). (you can show only the matrix element of row one and column one for this one!)

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HW.docx