to be written in python Use Vigenere Cipher to encrypt the plaintext “THIS IS NOT A VERY HARD COURSE” using the key string “SECURITY”. Show your steps to arrive at the Cip hertext. Do not consider the blank spaces during encryption. b) Use Vigenere Cipher to decrypt the ciphertext “ llgwfckqwlcmxwhbeevbzvbr ” using the key string “SECURITY”. Show your steps to arrive at the plaintex

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A: The python program is given below:

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