Information identification code-based information authentication method and terminal

This is a system for authenticating a user, primarily for services like subway travel, using a special code. A user's device generates a unique code that includes their identity and the time it was created. This code is then sent to a central system, which verifies the code and the user's identity to grant access, for example, to open a subway gate. The central system decrypts and checks the code to ensure it's valid and matches the user's request.

Why it matters: Filed before widespread mobile ticketing and access control systems became standard for public transport. The claims' focus on subway travel aligns with current expectations for seamless digital integration, making the underlying software architecture more relevant now.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedSoftware logic, secure communication, physical integration

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