4.18 Using S-DES (see Appendix G on Blackboard), decrypt the string (10100010) using the key (0111111101)...

4.18 Using S-DES (see Appendix G on Blackboard), decrypt the string (10100010) using the key (0111111101) by hand. Show intermediate results after each function (IP, FK, SW, FK, 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 P in base 2 (i.e., A = 0000, B = 0001, …, P = 1111). Hint: As a midway check, after the application of SW, the string should be (00010011)

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4.18 Using S-DES (see Appendix G on Blackboard), decrypt the string (10100010) using the key (0111111101)...

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