Computer Science for IGCSE & O level - Data Transmission (Section 14 - No. 21)

What is the main distinction between symmetric and asymmetric encryption?

Symmetric encryption uses a key pair; asymmetric uses a single key.

Symmetric encryption is always more secure.

Symmetric encryption uses one key, while asymmetric encryption uses two keys.

Asymmetric encryption is faster than symmetric encryption.

The primary difference lies in the use of keys, one for symmetric and a pair for asymmetric.