Explain the difference between symmetric and asymmetric encryption.

The distinction between symmetric and asymmetric encryption fundamentally lies in the number of keys utilized in the encryption and decryption processes. Symmetric encryption employs a single key for both encryption and decryption. This means that the same key is shared between the parties involved, making it crucial to keep this key secure to ensure the confidentiality of the data being exchanged.

In contrast, asymmetric encryption relies on a pair of keys: a public key and a private key. The public key can be shared openly and is used to encrypt data, while the private key is kept secret and is used to decrypt the data. This dual-key mechanism enhances security, as the encryption does not require the public key's holder to safely share a single secret key.

This understanding of key management is essential for applying the correct encryption method based on the requirements of security, efficiency, and the context of communication.