1. On paper, decrypt the string (10100010) with key (0111111101).

Hint: As a midway check, after the application of SW, the string should be 00010011).

2. Once decoded, take the first 4 bits of decoded plaintext string and apply the following scheme to find the matching alphabet letters. Do the same for the second 4 bits.

I completed question 1 and i think I answered it wrong because I did not get the code given for SW.