Authentication System Using Light Signal and Two-Step Verification
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Solution Overview
Problem
Current authentication systems using RFID cards and visible light-based access control face security risks due to ease of card information replication and cracking, leading to unauthorized access.
Innovation Solution
The system incorporates an information transmit module and a light receive module in the receiver, and an information receive module and a light transmit module in the transmitter, where the transmitter only transmits a unique identification code as a light signal when authorized, and the receiver performs a second authentication on the received signal, enhancing security by controlling light signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If visible light is used to transmit information by fast flashing, then wireless information transmission is achieved, but the light signal can be photographed by high-speed camera and information content can be obtained
Solution Approach 1:
The receiver performs a first authentication on the transmitter before allowing light signal transmission. The transmitter only transmits the unique identification code after passing this authentication, preventing unauthorized transmission from the outset
Solution Approach 2:
The patent introduces an authentication mechanism as an intermediary step between the transmitter and receiver. The transmitter must prove its identity and authorization status before the light signal transmission can occur, adding a security layer
2Ease of operation
If the transmitter transmits the light signal of the identification code without authentication control, then the transmission process is simple, but the security risk increases due to uncontrolled transmission
Solution Approach 1:
The system performs authentication before transmission, ensuring that only authorized transmitters can send light signals. This preliminary verification step prevents unauthorized access while maintaining operational simplicity for authorized users
Solution Approach 2:
The receiver provides feedback by performing authentication and controlling whether to allow transmission. This feedback mechanism ensures security by verifying transmitter credentials before permitting light signal transmission
3Ease of operation
If the receiver does not perform authentication on the received light signal, then the reception process is simple, but the security risk increases due to inability to verify transmitter authorization
Solution Approach 1:
The receiver performs authentication as a feedback verification step, checking whether the transmitter is authorized before accepting the light signal. This ensures security without significantly complicating the reception process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces the risk of unauthorized access by ensuring that only authorized transmitters can transmit and receive identification codes, thereby improving the overall security of the authentication system.
Implementation Method 1
a light transmit module configured to convert the transmitter information into a light signal for transmission
Implementation Method 2
the receiver (equivalent to a card reader), the light signal is converted into an electrical signal by using a photoelectric conversion component such as a photoresistor
Data Source
Figure 1~2a
Figure 2b~3
Figure 4
AI summary
The present application discloses an authentication system, and a transmit terminal, a receive terminal, and a right authentication method of same. The authentication system includes a transmit terminal, a receive terminal, and a management server, where the transmit terminal includes a transmitter, and the receive terminal includes a receiver and a controller. An information transmit module and a light receive module are disposed in the receiver. An information receive module and a light transmit module are disposed in the transmitter. The receiver externally propagates, by using the information transmit module, an identification code information set corresponding to the receiver. After receiving the identification code information set, the transmitter firstly performs a first right authentication on rights of the transmitter. The transmitter allows itself to transmit a light signal of an identification code of the transmitter only after the authentication is passed, thereby reducing a security risk caused by uncontrolled transmission of the light signal of the identification code of the transmitter by the transmitter. After the transmitter transmits the light signal of the identification code of the transmitter, the receiver performs a second right authentication on the received light signal. In this way, security of the authentication system is further improved.