Opaque Identifier Encoding in Authentication Tokens

The patent introduces an authentication service as an intermediary between the user device and multiple application services. This service generates and manages authentication tokens that contain encoded device identifiers, allowing services to identify devices without direct access to raw device information. The intermediary protects user privacy by preventing services from directly accessing sensitive device data while still enabling device recognition and coordination.

The patent creates a simplified copy of device identification information by encoding essential device identifiers into authentication tokens. Instead of sharing complete device information profiles across services, the system generates token copies that contain only the necessary identification data. This copying approach enables service coordination while minimizing privacy exposure by omitting sensitive information from the shared tokens.

The patent implements a universal authentication token system that serves multiple functions across different application services. A single authentication token generated by the authentication service can be presented to any service in the ecosystem, eliminating the need for separate authentication mechanisms at each service. This multi-functional approach maintains high security through centralized credential verification while reducing system complexity by providing a unified authentication interface.

The system performs authentication credentials verification in advance through a dedicated authentication service before the user accesses multiple application services. By conducting the security verification preliminarily and encoding the results in authentication tokens, the system establishes security upfront rather than requiring repeated verification at each service. This preliminary action reduces real-time authentication overhead and simplifies the interaction between services and users.