The portal uses the authentication mechanism of the underlying SAP NetWeaver Application Server (AS) Java. The portal supports Single Sign-On (SSO) to back-end systems using user ID and password with user mapping.
Since the system sends the user's user ID and password across the network, you should use a secure protocol such as Secure Sockets Layer (SSL) for sending data.
More Information:
● Logon Using User ID and Password on the AS Java
● Configuring User Mapping with User ID and Password on a Portal