### Authentication

OpenSSO is installed with a set of default authentication module types. An authentication module instance is a plug-in that collects user information such as a user ID and password, checks the information against entries in a database, and allows or denies access to the user. Multiple instances of the same type can be created and configured separately.

This section provides attribute descriptions that configure the default authentication module types.

- Anonymous

- Active Directory

- Authentication Configuration

- Certificate

- Core

- Data Store

- HTTP Basic

- JDBC

- LDAP

- Membership

- MSISDN

- RADIUS

- SafeWord

- SecurID

- UNIX

- Windows Desktop SSO

- Windows NT

- Supported Language Locales