Question: Secret key shared by sender and recipient Secret key shared by sender and recipient Transmitted ciphertext Y = EK, X) X = D/K, YI Plaintext

Secret key shared by sender and recipient Secret key shared by

Secret key shared by sender and recipient Secret key shared by sender and recipient Transmitted ciphertext Y = EK, X) X = D/K, YI Plaintext input Encryption algorithm Decryption algorithm (reverse of encryption algorithm) Plaintext output List the main two disadvantages of the above cryptosystem

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