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Hmk4 - plaintext{ and the key{ a Show the original contents...

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CIS 3362 Homework #4 Advanced Encryption Standard Due: Friday, 10/22/10 Note: This is a group assignment. Each pair of students should turn in one write-up in class on the due date. Both students' names should clearly be at the top of the front page of the assignment. Students may also turn in the assignment by themselves if they do not wish to have a partner. 1) Show the first eight words (w[4] through w[11]) of the key expansion for a 128-bit key of all ones. 2) Given the
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Unformatted text preview: plaintext {000102030405060708090A0B0C0D0E0F} and the key {10101010101010101010101010101010}, a. Show the original contents of State, displayed as a 4x4 matrix. b. Show the value of State after the initial AddRoundKey c. Show the value of State after SubBytes. d. Show the value of State after ShiftRows. e. Show the value of State after MixColumns. Note: Feel free to write your own program to answer these problems. If you do this, turn this code in over WebCourses....
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