C. Output Feedback (OFB) mode [5 pts] Question: Consider that two different messages have an identical block of plain text in the identical position which are used in the OFB mode, is it possible to recover the corresponding 0i block? If yes, show through mathematical derivation or through writing a program, otherwise give your reason justifying your answer. C. Output Feedback (OFB) mode [5 pts] Question: Consider that two different messages have an identical block of plain text in the identical position which are used in the OFB mode, is it possible to recover the corresponding 0i block? If yes, show through mathematical derivation or through writing a program, otherwise give your reason justifying your