Q3. Encrypt the Message "Spring Semester" by using polyalphabetic cipher of period 3 is being used, with the three monoalphabetic ciphers M1, M2, M3 as defined below M1 is created by using your name...

a question in information security i need help solving it please

Extracted text: Q3. Encrypt the Message "Spring Semester" by using polyalphabetic cipher of period 3 is being used, with the three monoalphabetic ciphers M1, M2, M3 as defined below M1 is created by using your name M2 is created by using your father name M3 is created by using your family