Fixed Line Device Authentication via Electrical Signature
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Solution Overview
Problem
Existing access systems for fixed line devices lack secure authentication methods, allowing unauthorized access and compromising device security, especially after activation and operation in communication systems.
Innovation Solution
A method utilizing a measurement function connected to a signature function via a fixed line connection, where the signature function affects electrical parameters to authenticate access, ensuring only authorized systems can access the device by matching predefined measurement results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing access systems are used for fixed line devices, then access to devices is possible, but security is compromised allowing unauthorized access
Solution Approach 1:
The patent implements authentication by measuring electrical parameters (resistance, capacitance, inductance) of the fixed line connection before granting access to the device. These physical characteristics are measured and compared against predefined values as a preliminary security check, ensuring that only authorized access systems with matching connection characteristics can access the device, thereby resolving the security vulnerability of existing systems.
2Reliability
If dedicated protected ports are used for secure access, then authentication is possible, but device complexity increases
Solution Approach 1:
The patent enables the existing fixed line connection to serve dual purposes: both as the communication interface for device operation and as the authentication channel for security verification. By measuring electrical parameters through the same connection used for normal operation, the system eliminates the need for separate dedicated protected ports, maintaining device security while avoiding additional structural complexity.
3Reliability
If measurement function is connected to signature function via fixed line, then secure authentication is achieved, but connection requirements increase
Solution Approach 1:
The patent authenticates access systems by measuring electrical parameters (resistance, capacitance, inductance) of the fixed line connection and comparing them against predefined signature values. The measurement function determines these parameters through the connection to the signature function, and authentication is granted when the measured parameters match the expected signature, thereby achieving secure authentication while maintaining compatibility with standard fixed line connections.
Data Source
AI summary
A method is provided accessing a device of a fixed line system comprising: (i) determining at least one measurement result by a measurement function of the device; (ii) comparing the at least one measurement result with at least one predefined value; (iii) conducting a predefined operation if the comparison indicates that the at least one measurement result corresponds to the at least one predefined value; (iv) determining the at least one measurement result by the measurement function, wherein the measurement function is connected or connectable via a connection to a signature function of an access system; (v) wherein the signature function comprises a circuitry that affects parameters measured by the measurement function of the device. Also, a method for access the device via an access system, the device, the access system and a computer program product as well as a computer-readable medium are suggested.