VLAN Tagged Application Single Sign-On Authentication

The patent merges multiple authentication operations into a single authentication action. When a user authenticates to access an application, the authentication server not only verifies credentials for that specific application but also automatically authenticates the user for all other applications in the system. This combining of authentication operations eliminates repeated login requirements while maintaining security through a centralized authentication mechanism that tracks user credentials across all applications.

The patent implements preliminary authentication where the authentication server performs a single comprehensive verification of user credentials that establishes authentication status for all applications in advance. Instead of repeatedly verifying credentials for each application access, the server performs the authentication action once and caches the result, allowing subsequent application accesses to proceed without repeating the full authentication process. This preliminary action significantly reduces server processing load while maintaining authentication control.

The patent combines multiple authentication time costs into a single authentication event. By merging the authentication process across all applications, the system eliminates the need for users to spend time repeatedly entering credentials for each application. The single authentication action establishes a time-bound authentication token that validates user identity across the entire application suite, dramatically reducing the total time users spend on authentication activities while maintaining security through the centralized authentication server.