COMPUTER NETWORKING

NETWORK SECURITY

CONFIDENTIALITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the largest disadvantage of the symmetric Encryption?
A
1.More complex and therefore more time-consuming calculations.
B
2.Problem of the secure transmission of the Secret Key.
C
3.Less secure encryption function.
D
4.Isn’t used any more.
Explanation: 

Detailed explanation-1: -By far the biggest disadvantage of symmetric encryption is its use of a single, secret cryptographic key to encrypt and decrypt information.

Detailed explanation-2: -Symmetric key encryption has two drawbacks. The secret has to be communicated in a secure method and there must be a unique secret between each originator and receiver.

Detailed explanation-3: -If an unauthorized user gains access to a particular symmetric key, the security of any data encrypted using that key is compromised.

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