Shared Terminal Authentication via External Server
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Solution Overview
Problem
Existing electronic whiteboards lack secure authentication mechanisms for multiple users sharing the same terminal, leading to potential unauthorized access and security breaches during collaborative sessions.
Innovation Solution
A shared terminal system that includes circuitry for authentication, a transmitter to send terminal identification information to a management server, and a receiver to verify user legitimacy, allowing only authenticated users to access and interact with the shared display, while displaying error messages for unauthorized attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a shared terminal is made accessible to multiple users without authentication, then ease of operation is improved, but security and reliability deteriorate due to unauthorized access
Solution Approach 1:
The patent introduces a terminal management server as an intermediary between users and the shared terminal. The server receives terminal identification information from privately-owned terminals, performs authentication, and manages access rights. This mediator enables multiple users to access the shared terminal conveniently while maintaining security through centralized authentication management.
2Reliability
If authentication mechanisms are added to the shared terminal, then security and reliability are improved, but device complexity increases
Solution Approach 1:
The patent extracts the authentication functionality from the shared terminal itself and places it in a separate terminal management server. The shared terminal only needs to display screens for user interaction and transmit identification information, while the complex authentication logic and database management are handled by the external server. This extraction reduces the complexity of the shared terminal while maintaining security.
Solution Approach 2:
The terminal management server acts as an intermediary that handles all authentication complexity. It receives terminal identification information, compares it with registered information in its database, and returns authentication results. This mediator absorbs the computational and logical complexity of authentication, leaving the shared terminal with a simpler role in the authentication process.
3Reliability
If terminal identification information is collected and verified through a management server, then reliability is improved, but loss of time increases due to authentication processes
Solution Approach 1:
The patent implements preliminary action by pre-registering terminal identification information in the terminal management server's database before actual authentication is needed. When a user attempts to access the shared terminal, the server simply compares the provided identification information against the pre-stored registered information, rather than performing complex verification from scratch. This preliminary preparation reduces authentication processing time while maintaining reliable verification.
Data Source
AI summary
A shared terminal includes: circuitry to control a display to display an image to a plurality of users, the plurality of users sharing a use of the shared terminal, and obtain, from a first privately-owned terminal owned by a first user of the plurality of users, first terminal identification information for identifying the first privately-owned terminal; a transmitter to transmit, to a terminal management server, an authentication request for authenticating the first privately-owned terminal to allow login of the first user into the shared terminal, the authentication request including the first terminal identification information of the first privately-owned terminal; and a receiver to receive an authentication result indicating whether the first privately-owned terminal is authenticated to allow login of the first user, from the terminal management server. When the authentication result indicates that the first privately-owned terminal is a legitimate terminal and login of the first user is successful, the circuitry controls the display to display a screen for allowing the plurality of users including the first user to draw an image. When the authentication result indicates that the first privately-owned terminal is not a legitimate terminal and login of the first user fails, the circuitry controls the display to display a screen with an error message.