METHOD AND SYSTEM FOR AUTHENTICATING ACCESS TO HETEROGENEOUS COMPUTING SERVICES

A method and system for authenticating access to heterogeneous computing services is provided. In a preferred embodiment, logon providers are configured into the computer system, which provide secure access to their services by requiring authentication of user identification information using a logon mechanism. According to this embodiment, a user designates a primary logon provider to provide an initial logon user interface. The user enters identification information when this user interface is displayed, for example a user name, a password and a domain. The computer system executes a logon sequence, which first invokes the primary logon provider to collect identification information and to authenticate the user for access to services provided by the primary logon provider. The system then authenticates the collected identification information to provide the user access to operating system computer services. If the system logon authentication procedure is not successful, then the logon sequence displays its own user interface to collect additional identification information. The logon sequence then invokes the logon routines of other logon providers to enable them to authenticate already collected identification information without displaying additional user interfaces. A preferred embodiment enables the system logon sequence to use authentication information stored on a network to authenticate the user for access to local computing services. Also, logon providers can be provided for drivers other than network drivers when a logon mechanism is required to access their computing services. Further, using a primary logon provider, the initial logon user interface displayed to collect identification information can be replaced.