Course: CSE3230 Edition: 2020-2021

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One can enroll until Mon, Jun 28, 2021 12:00:00
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Latest Announcements

Resit Exam - S-box Construction question

For the S-box question, you can get values that are not defined (like \(\frac{1}{0}\)). In such cases, you are free to select any value for that specific S-box output.

at Mon, Jun 28, 2021 10:58:45 updated at Mon, Jun 28, 2021 10:59:16

Resit Exam - SageMath question

In one group, for question 2b, here is the correction:

Define the field extension \(F_{2^5}\) over \(F_2\) using the primitive polynomial. Find the additive and the multiplicative representations for the elements of \(F_{2^5}\). (3 points)

at Mon, Jun 28, 2021 10:51:16

Resit Exam - S-box Construction question

Please consider \(F(0) = 0\) for \(x=0\).

at Mon, Jun 28, 2021 10:30:57

Resit Exam - Boolean Function Construction question

The value for the exponent \(d\) is not defined by the assignment, you can freely select the value, but it must be different from 1.

at Mon, Jun 28, 2021 09:37:05

Resit Exam - Typo fixed in Proof question

The initial version of the proof question contained a small typo in the definition of f, being \( f(x_1,\cdots,x_{n+1}) = g(x_1,\cdots,x_n) \oplus x_n \) instead of \( f(x_1,\cdots,x_{n+1}) = g(x_1,\cdots,x_n) \oplus x_{n+1} \). The typo has now been fixed.

at Mon, Jun 28, 2021 09:16:27

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