TLS uses ___________ to authenticate a connection and create a shared secret for the duration of the session.

SAML 2.0 is an XML-based standard for exchanging authentication and authorization data between security domains, primarily used for web browser single sign-on, not directly for authenticating a TLS connection itself.

X.509 certificates are a public key infrastructure (PKI) standard used by TLS during the handshake to verify the identity of the server and, optionally, the client. These digital certificates bind a public key to an authenticated identity, allowing participants to trust the authenticity of their communication peer before encrypting data.

802.11X is an IEEE standard for port-based network access control, often used for authenticating devices to a wireless or wired network, not for the cryptographic authentication within the TLS protocol.

The Diffie-Hellman process is a key exchange algorithm used within TLS to establish a shared secret securely, but it does not perform the authentication of the parties; X.509 certificates provide the authentication for this key exchange.