SqlAuthenticationParameters Represents AD authentication parameters passed by a driver to authentication providers.

 SqlAuthenticationToken Represents an authentication token.

 SqlAuthenticationMethod Describes the different SQL authentication methods that can be used by a client connecting to Azure SQL Database. For details, see Use Microsoft Entra Authentication.

 SqlAuthenticationProvider Defines the core behavior of authentication providers and provides a base class for derived classes.

 SqlAuthenticationProviderException This exception is thrown for any errors that occur during the authentication process.