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Suppose that the S - Box of Example 4 . 1 is replaced by the S - Box defined by following substitution pi _
Suppose that the SBox of Example is replaced by the SBox defined by following substitution pi S : a Compute the table of values NDas defined in Definition for this SBox. b Find a differential trail using four active SBoxes, namely, SSS and S that has propagation ratio and will find eight subkey bits in the last round. c Describe a differential attack, analogous to Algorithm that will find eight subkey bits in the last round. Your algorithm should have similar syntax as shown in Algorithm Points Suppose that the SBox of Example is replaced by the SBox defined by
following substitution :
a Points Compute the table of values as defined in Definition for this
SBox.
b Points Find a differential trail using four active SBoxes, namely, and
that has propogation ratio and will find eight subkey bits in the last round.
c Points Describe a differential attack, analogous to Algorithm that will find
eight subkey bits in the last round. Your algorithm should have similar syntax as
shown in Algorithm
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