Question

About encryption, and from a service perspective, discuss what is an important difference between symmetric-key and public-key systems.

Answer 1

Symmetric Key :

It requires Only one Key for Encryption and Decryption.

The Cipher text is smaller in size comparing to the original Text and the Size of Cipher text is same.

The Encryption Process is Faster than Public Key.

Large Amount of Data is Uses for Transferring Files.

Resources Utilisation is low in Symmetric key Compared to Asymmetric key.

Product Key :

It requires Two Keys , One is for Encrypt and Other one is for decrypt.

The Size of Cipher text is Same or Larger than the Original Plain Text.

The Encryption Process is Slow.

Small Amount of Data is Used for Transfer Files.

The Resource Utilisation is High in Asymmetric Key.