Communication Interface Adapter for Unauthorized Access Detection
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Solution Overview
Problem
Existing monitoring systems for communication interfaces in data processing devices do not effectively detect manipulation or unauthorized use, as they primarily focus on monitoring data streams rather than the devices or connections themselves.
Innovation Solution
A monitoring device is designed with an adapter element that connects to communication interfaces, generating a monitoring signal when plugged in and transmitting it to an alarm system, preventing unauthorized use by ensuring the connection cannot be removed without detection, and utilizing optocouplers or light-emitting diodes to isolate the signal generation circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If software-based monitoring programs are used to monitor data streams, then data manipulation can be detected, but the devices or device connections themselves cannot be monitored
Solution Approach 1:
The patent introduces an adapter element as an intermediary device that physically connects between the monitoring system and the communication interface. This adapter contains a signal generating element that creates monitoring signals, enabling both connection monitoring and data stream monitoring through a single integrated component rather than separate software-only monitoring
2Reliability
If the interface connection element is designed to be permanently connected, then manipulation detection is improved, but the ease of operation deteriorates
Solution Approach 1:
The adapter element is pre-configured with a signal generating element and grounding connection before being connected to the communication interface. This preliminary setup ensures that monitoring functionality is automatically activated upon connection, providing immediate manipulation detection without requiring additional configuration steps that would complicate operation
Solution Approach 2:
The adapter element automatically generates monitoring signals and establishes grounding connections through its own internal mechanisms when plugged into the communication interface. This self-service capability eliminates the need for external monitoring system configuration, maintaining ease of operation while ensuring reliable manipulation detection
3Reliability
If optocouplers are used to isolate signal generation circuits, then security is improved, but device complexity increases
Solution Approach 1:
The optocoupler acts as an optical intermediary that transfers signals between the signal generating element and the monitoring system without direct electrical connection. This optical mediation provides galvanic isolation and enhanced security while adding only a single standardized component to the circuit, minimizing the increase in overall device complexity
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
The solution effectively detects manipulation and unauthorized use of communication interfaces by generating a monitoring signal when the adapter is plugged in or removed, preventing unauthorized access and ensuring secure communication, even in the absence of a separate voltage supply, thus enhancing IT security.
Implementation Method 1
the signal-generating element is a light-emitting diode or a sound generator
Implementation Method 2
the signal generating element is an optocoupler or an electronic coupling element
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a monitoring device for at least one communication interface of a data processing device, wherein for each of the at least one communication interface to be monitored, a first power supply connection, a ground connection, and an adapter element with an interface connection element are provided. A signal generation element is interposed between the power supply connection and the ground connection, and the ground connection is electrically connected to a ground connection element in the interface connection element. The interface connection element is designed such that the ground connection element is connected to the ground of the communication interface when the interface connection element is plugged into the communication interface provided for this purpose.The signal generation element generates a monitoring signal when a voltage is applied to the power supply terminal and the interface connection element is plugged into the communication interface, with the monitoring signal being provided at a monitoring signal terminal of the monitored communication interface.