What is the difference between symmetric and asymmetric encryption, and when would you use each in a secure communication setting?

Difference between Symmetric and Asymmetric Encryption

Symmetric encryption uses a single key for both encryption and decryption, whereas asymmetric encryption uses a pair of keys - a public key for encryption and a private key for decryption.

In a secure communication setting, symmetric encryption is typically used for encrypting large amounts of data efficiently, making it suitable for tasks like securing file transfers or data storage. Asymmetric encryption, on the other hand, is used for securely exchanging keys or validating the identity of parties involved in communication, making it ideal for tasks like establishing secure communication channels or digital signatures.

Choosing between symmetric and asymmetric encryption depends on the specific requirements of the communication setting and the level of security needed.