The SAP GUI creates user ID and password authentication functions enable authorized users to access the ABAP by interactively providing a user ID and password. The ABAP security model requires that all users log on with valid authentication credentials. With user ID and password authentication, users enter their authentication credentials consisting of user ID, password and an ABAP client system. The user password represents a secret form of authentication data that is used to establish the users identity. After users provide their passwords, the SAP GUI uses hashing algorithms to disguise the password and ensure the confidentiality and integrity of the password during its transport and storage.