Question: Using S-DES, decrypt the string (10100010) using the key (0111111101) by hand. Show intermediate results after each function (IP, (mathrm{F}_{K}, mathrm{SW}, mathrm{F}_{K}, mathrm{IP}^{-1}) ). Then

Using S-DES, decrypt the string (10100010) using the key (0111111101) by hand. Show intermediate results after each function (IP, $\mathrm{F}_{K}, \mathrm{SW}, \mathrm{F}_{K}, \mathrm{IP}^{-1}$ ). Then decode the first 4 bits of the plaintext string to a letter and the second 4 bits to another letter where we encode A through $\mathrm{P}$ in base 2 (i.e., $\mathrm{A}=0000, \mathrm{~B}=0001, \ldots, \mathrm{P}=1111$ ). Hint: As a midway check, after the application of SW, the string should be $(00010011)$.

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