True or False: A certificate authority provides keys for authentication used in a digital certificate.

A certificate authority (CA) is an essential component in the realm of digital certificates and public key infrastructure (PKI). It issues digital certificates that validate the identity of entities and bind them to a public key, enabling secure communication over a network.

The statement is true because a CA indeed provides public keys, which are used for authentication within the digital certificates it issues. These certificates contain information such as the public key itself, the identity of the entity that owns the certificate, and the CA's digital signature, which assures the recipient that the public key belongs to the asserted entity.

While the CA does not directly provide private keys (as private keys must be kept secret by the entity generating the certificate), it plays a crucial role in ensuring that the public keys tied to those private keys are trusted and authenticated. This trust is established through the CA’s digital signature, verifying the validity of the certificate and, consequently, its associated public key for secure transactions.

Thus, the assertion that a certificate authority provides keys for authentication used in a digital certificate is accurate.