Question: Compute the S-Box (i.e. the ByteSub layer) value for the following input bytes: (a) (29)Base16 (b) (F3)Base16 Recall that in order to do this, you

Compute the S-Box (i.e. the ByteSub layer) value for the following input bytes:

(a) (29)Base16

(b) (F3)Base16

Recall that in order to do this, you should first look up the inverses using table 4.2 to obtain intermediary value B. Next, perform the affine mapping by computing the matrix-vector multiplication and addition mod 2.

Hint: you can verify your results by using S-Box table 4.3 on page 101 of P&P.

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