Computer Science for IGCSE & O level - Data Transmission (Section 10 - No. 39)

What is a key difference between symmetric and asymmetric encryption?

Symmetric uses one key; asymmetric uses two.

Symmetric is for files; asymmetric for networks.

Symmetric is more secure.

Asymmetric uses only a single key.

Symmetric encryption uses the same key for both encryption and decryption, while asymmetric uses different keys.