Unformatted text preview: 1 IP is the inverse initial permutation, is the 16 rounds. Here you need to figure out the function . You should not simply answer that 16 2 1 . 3. Do Problem 3.12 of Stallings. In addition to specifying a table analogous to Table 3.4d, you need to indicate whether to rotate to the left or to the right. 4. Consider AES. (a) Suppose we change one bit in the first byte of the input block. After the first round of AES, how many bits of the output matrix state are possibly affected? (b) Answer the same question but now we change one bit in the last byte of the input block....
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- Spring '10
- Cryptography, 128-bit block size, inverse initial permutation, input block, Stallings.