Question: [3%] [4%] 2) Write another small program F(x): a 28-bit to 28-bit function with key s resulting from the construction 8.20 using the (doubling) pseudo-random

[3%] [4%] 2) Write another small program F(x): a 28-bit to 28-bit function with key s resulting from the construction 8.20 using the (doubling) pseudo-random generator above. 3) Finally, write a third program using this pseudo-random function to obtain an OFB encryption of the plaintext "sNsNs". (5 blocks of 28 bits each)

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