Question: If we use extended Vigenere cipher ( 2 6 English letters and 1 0 decimal digits ) to encrypt ics 1 9 2 8 using

If we use extended Vigenere cipher (26 English letters and 10 decimal digits) to encrypt ics1928 using key word Covid19. Then, we obtain ---------------------- as a ciphertext. Note that Z=25,0=26,1=27,2=28...... Hint: Use modular arithmetic.
Question 25Answer
a.
KQD0CTA
b.
KQD9CT7
c.
KQD9CTC
d.
None of these
e.
KQD9CTB

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