COMPUTER FUNDAMENTALS

COMPUTER ETHICS AND SECURITY

CRYPTOGRAPHY AND ENCRYPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the largest disadvantage of symmetric encryption?
A
It is not used any more.
B
It is more complex and more time-consuming.
C
It is difficult to securely transmit the secret key.
D
It is less secure when compared to asymmetric encryption.
Explanation: 

Detailed explanation-1: -Which is the largest disadvantage of symmetric Encryption? Explanation: As there is only one key in the symmetrical encryption, this must be known by both sender and recipient and this key is sufficient to decrypt the secret message.

Detailed explanation-2: -By far the biggest disadvantage of symmetric encryption is its use of a single, secret cryptographic key to encrypt and decrypt information.

Detailed explanation-3: -The major disadvantage of secret key encryption is that a single key is used for both encryption and decryption. There must be a secure way for the two parties to exchange the one secret key.

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